Posts Tagged ‘muscle’
Saturday, September 26th, 2009
Generic Name
Glatiramer (glah-TYE-ram-er)
Brand Name Copaxone
Type of Drug
Relapsing-remitting multiple sclerosis (MS) therapy.
Prescribed For MS.
General Information
Glatiramer is a mixture of several amino acids. It is thought to work by modifying the immune processes responsible for MS. In studies, people who took the drug for over a year were twice as likely to be relapse-free as those who took a placebo (sugar pill).
Cautions and Warnings
Do not use this drug it you are allergic or sensitive to any of its ingredients or to mannitol.
About 10% of people who self-administer glatiramer experience a post-injection reaction with symptoms that include flushing, chest pain, heart palpitations, anxiety, breathing difficulties, closing of the throat, and an itchy rash. These symptoms usually go away without treatment. This reaction generally occurs after several months of drug therapy, though it may occur earlier.
About 21 % of the people who took glatiramer in drug studies had chest pain, but the exact relationship of this pain to use of glatiramer could not be determined. Report any chest pain to your doctor at once.
Glatiramer may make you more sensitive to sunlight.
Because it interferes with immune response, glatiramer may increase your risk of developing infections and tumors.
Glatiramer may interfere with kidney function.
Possible Side Effects
V Most common: infections, weakness, pain, chest pain, flu-like symptoms, back pain, flushing, heart palpitations, anxiety, muscle stiffness or spasticity, an urgent need to urinate, swollen lymph glands, injection-site reactions
Possible Side Effects (continued)
(including pain, inflammation, itching, an unknown mass at the injection site, welts, skin marks, and bleeding), breathing difficulties, runny nose, and joint pain.
¦ Common: fever, neck pain, facial swelling, bacterial infection, migraine, rapid heartbeat, tremors, fainting, appetite loss, vomiting, general stomach disorders, vaginal infection, painful menstruation, black-and-blue marks, swelling in the arms or legs, bronchial irritation, spasm of the larynx, and ear pain.
V Less common: chills, cysts, agitation, foot drop, nervousness, rolling eyeballs, rapid eye movement, confusion, speech problems, cold sores, redness, itchy rash, skin nodules, stomach pain and irritation, and weight gain.
¦ Rare: Other side effects can occur in almost any part of the body, including the heart and blood vessels, digestive system, blood and lymph systems, muscles and bones, respiratory system, kidney, reproductive system, and eyes. Contact your doctor if you experience any side effect not listed above.
Food and Drug Interactions None known.
Usual Dose
Adult (age 18 and over): 20 mg a day by injection under the skin. Child (under age 18): not recommended.
Overdosage
Little is known about the effects of glatiramer overdose. Call you local poison control center or a hospital emergency room for information. If you seek treatment, ALWAYS bring the prescription bottle or container.
Special Information
This medication is given by injection. For information on how to properly administer this drug, see page 1242.
Store unused glatiramer in the refrigerator before it is mixed with the diluent supplied by the manufacturer. Do not use any other diluent. The mixed injection must be used right away.
Suggested injection sites are the arms, abdomen, hips. and thighs. Be sure to rotate injection sites.
Glatiramer works best if given at the same time each day.
If you forget to administer a dose, do so as soon as you remember. If it is almost time for your next dose, skip the dose you forgot and continue with your regular schedule. Do not take a double dose. Call your doctor if you miss more than 2 doses in a row.
Special Populations
Pregnancy/Breast-feeding: The safety of using glatiramer during pregnancy is not known. When this drug is considered crucial by your doctor, its potential benefits must be carefully weighed against its risks.
It is not known if glatiramer passes into breast milk. Nursing mothers who must take it should use infant formula.
Seniors: Seniors may use glatiramer without special restriction.
Type of Drug
Glitazone Antidiabetes Drugs
(GLIT-uh-zone)
Brand Names
Rosiglitazone Maleate Avandia
Combination Products
Pioglitazone Hydrochloride + Metformin Hydrochloride
ACTOplus Met
Pioglitazone Hydrochloride + Glimepiride Duetact
Rosiglitazone Maleate + Metformin Hydrochloride
Nnndamet
Rosiglitazone Maleate + Glimepiride Avandaryl
Prescribed For Type 2 diabetes.
General Information
The glitazones reduce the amount of sugar produced by the liver and increase insulin sensitivity of muscle, liver, and fat cells. They may also help to control blood-fat levels, which are often elevated in diabetes. Glitazones work by affecting genes responsible for controlling the use of sugar and fat in the body, making cells more sensitive to insulin. They are effective for people with type 2 diabetes, whose cells do not respond well to insulin. Glitazones only work when insulin is present. They do not increase the amount of insulin made in the pancreas. Glitazones can be used alone or combined with other diabetes drugs. Studies have indicated that taking rosiglitazone can delay or prevent type 2 diabetes in people with pre-diabetes.
Cautions and Warnings
Do not take these drugs if you are sensitive or allergic to any of their ingredients or to related drugs. Glitazones may cause fluid retention, worsening or leading to heart failure. Some studies have indicated the risk of heart attack may be increased in people taking rosiglitazone. Other studies have shown that pioglitazone decreases the risk of heart attack. The effects of these drugs on the heart are still being investigated.
Glitazones are broken down in the liver; people with liver disease should not take them. Liver enzyme monitoring is recommended for all people taking a glitazone. People taking pioglitazone and rosiglitazone have experienced liver failure, though no direct causal effect of the drug has been established.
Glitazones may raise blood levels of cholesterol and other blood fats.
These drugs can trigger ovulation. Premenopausal women who are not ovulating may be at risk of becoming pregnant.
Glitazones can cause weight gain, which increases with dosage.
Rosiglitazone may increase the risk of broken bones in the hands, arms, or feet.
Women may achieve maximum benefit with smaller dosages.
Possible Side Effects
Pioglitazone
In studies, the side effects of pioglitazone were about the same as those for a placebo (sugar pill).
Possible Side Effects (continued)
¦ Most common: upper respiratory infections, headaches, and sinus irritation.
? Common: muscle aches, tooth problems, and sore throat.
? Less common: anemia and swollen legs or arms.
¦ Rare: swelling below the surface of the skin, especially around the eyes and lips; yellowing of the skin or whites of the eyes, hepatitis, and liver failure. Contact your doctor if you experience any side effect not listed above.
For additional side effects of ACTOplus Met, see Metformin (page 696). For additional side effects of Duetact, see Sulfonylurea Diabetes Drugs (page 1065).
Rosiglitazone
• Common: upper respiratory infections, accidental injuries, and headache.
• Less, common: swollen legs or arms, back pain.
• Rare: swelling below the surface of the skin, especially around the eyes and lips; may also affect the hands, feet and throat. Also, hives, anemia, blurry or distorted vision, and low blood sugar. Contact your doctor if you experience any side effect not listed above.
For additional side effects of Avandamet, see Metformin (page 696). For additional side effects of Avandaryl, see Sulfonylurea Diabetes Drugs (page 1065).
Drug Interactions
• Mixing gemfibrozil (for very high triglycerides) with a glitazone increases the amount of the glitazone absorbed into the body. A reduction in the dose of the glitazone may be needed if you start taking gemfibrozil.
• Rifampin can reduce the amount of a glitazone that is absorbed by the body, possibly leading to higher blood sugar levels.
• Ketoconazole may significantly increase the amount of pioglitazone in the body. Other drugs that may have a similar effect but have not yet been studied include itraconazole, erythromycin, calcium channel blockers, corticosteroids, cyclosporine, protease inhibitor anti-HIV drugs, tacrolimus, triazolam, and trimetrexate.
• Mixing pioglitazone with atorvastatin may reduce the amount of either drug in the body.
• Pioglitazone may reduce the effectiveness of contraceptive drugs containing norethindrone and ethinyl estradiol. Higher-dose contraceptives or another contraceptive method may be needed.
• Pioglitazone may stimulate the breakdown of other drugs also metabolized in the liver.
• Taking rosiglitazone and insulin may increase the risk of fluid retention and heart failure.
For additional drug interactions for Avandamet and ACTOpius Met, see Metformin (page 696). For additional drug interactions for Avandaryl and Duetact, see Sulfonylurea Diabetes Drugs (page 1065).
Food Interactions
Grapefruit juice may interfere with the breakdown of pioglitazone in the liver. Otherwise, these drugs may be taken with or without food, except for Avandaryl, which should be taken with the first meal of the day.
Usual Dose
Adult
Pioglitazone: 15-45 mg once a day.
Rosiglitazone: 8 mg once a day or in divided doses. ACTOplus Met: 15/500 mg-45/2550 mg once or twice a day. Avandamet: 2/500 mg-4/1000 mg twice a day.
Avandaryl: 4/1 mg-8/4 mg with the first meal of the day. Duetact: 30/2 mg-30/4 mg once a day.
Child: not recommended. Overdosage
Little is known about the effects of glitazone overdose. Take the victim to a hospital emergency room. ALWAYS bring the prescription bottle or container.
ISID’atial Information
Diet, calorie control, exercise, and weight loss are essential to controlling type 2 diabetes. Do not depend solely on this drug to manage your condition.
Alcohol, smoking, age, and race do not affect the way that glitazones are processed in the body.
Call your doctor if you develop symptoms Of liver disease, including nausea, vomiting, abdominal pain, fatigue, appetite loss, or dark-colored urine.
See your doctor for regular monitoring of blood sugar, glycosylated hemoglobin (a more sensitive indicator of long-term diabetes control), and liver function.
If you forget a dose of any of these medicines, take it as soon as you remember. If it is almost time for your next dose, skip the dose you forgot and continue with your regular schedule.
Special Populations
Pregnancy/Breast-feeding: The safety of using glitazones during pregnancy is not known. Most experts recommend that diabetes be controlled with insulin during pregnancy.
It is not known if glitizones pass into breast milk. Nursing mothers who must take it should consider using infant formula.
Seniors: Seniors may take this drug without special restriction.
Generic Name
Guanabenz (GWAN-uh-benz) 9)
Type of Drug Anti hypertensive.
Prescribed For High blood pressure.
General Information
Guanabenz acetate works by depressing the central nervous system by stimulating certain receptors. Initially, guanabenz reduces blood pressure without a major effect on blood vessels; however, btAqAum use of guanabenz may result in the dilation (widening) of blood vessels and a slight slowing of pulse rate. Guanabenz may be taken alone or with a thiazide diuretic.
Cautions and Warnings
Do not take guanabenz if you are allergic or sensitive to any of its ingredients.
People with severe kidney or liver disease should take this drug with caution. Guanabenz should also be used with caution by people who have had a recent heart attack or stroke.
Drug Interactions
• Other blood-pressure-lowering agents such as beta blockers increase the effect of guanabenz.
• The sedating effects of guanabenz are increased by combining it with sedatives, sleeping pills, or other centralnervous-system (CNS) depressants, including alcohol.
• People taking this drug for high blood pressure should avoid over-the-counter drugs that might aggravate their condition, including decongestants, cold and allergy remedies, and diet pills—all of which may contain stimulants.
Food Interactions
This drug is best taken on an empty stomach, but it may be taken with food if it upsets your stomach.
Usual Dose
Adult: 4 mg twice a day to start, increased gradually to a maximum dose of 32 mg twice a dwy—though doses this large are rarely needed.
Child (under age 12): not recommended.
Overdosage
Overdose causes sleepiness, lethargy, low blood pressure, irritability, pinpoint pupils, and reduced heart rate. Overdose victims should be made to vomit with ipecac syrup—available at any
swollen effects increase with dosage. siness, sedation, dry mouth, dizziness, ache.
st pain; swelling in the hands, legs, or ns or abnormal heart rhythms; stom- pain or discomfort; nausea; diarrhea; ion; anxiety; poor muscle control; de- sleeping; stuffy nose; blurred vision; ains; breathing difficulties; frequent uri- sex drive; impotence; unusual taste in ollen and painful breasts in men.
Possible Side Effects
Risk and severity of sid
• Most common: drowsiness
and headache. • Less common: ches
heart palpitation
• or abdominal vomiting; constipation
difficulty muscle aches and pains
• decreased the mouth; and
pharmacy—but call your doctor or poison control center first. If you must go to a hospital emergency room, ALWAYS bring the prescription bottle or container.
Special Information
Take guanabenz exactly as prescribed for maximum benefit. If any side effect becomes severe or intolerable, contact your doctor.
Guanabenz often causes tiredness or dizziness; avoid alcohol because it increases these effects. Take care when driving or doing anything that requires concentration.
Do not stop taking guanabenz without your doctor’s approval. Suddenly stopping this drug may cause a rapid increase in blood pressure. Dosage must be gradually reduced by your doctor.
If you forget a dose, take it as soon as you remember. If it is almost time for your next dose, skip the one you forgot and continue with your regular schedule. Do not take a double dose. Call your doctor if you miss 2 or more consecutive doses.
Special Populations
PregrianCylBreast-feeding, Guanabenz may affect the fetus. ii should be avoided by women who are or might be pregnant. When guanabenz is considered crucial by your doctor, its potential benefits must be carefully weighed against its risks.
It is not known if guanabenz passes into breast milk. Nursing mothers who must take this drug should use infant formula.
Seniors: Seniors are more sensitive to the sedating and bloodpressure-lowering effects of guanabenz.
Generic Name
Haloperidol (hal-oe-PER-ih-dol) [M
Brand Name
Haldol Type of Drug .
Butyroqhv)mearibpsychotic.
Prescribed For
Psychotic disorders, including Tourette’s syndrome; severe behavioral problems in children; short-term treatment of hyperactive children; chronic schizophrenia; vomiting; treatment of acute psychiatric situations; and phencyclidine (PCP) psychosis.
General Information
Haloperidol is one of many nonphenothiazine agents used to treat psychosis. These drugs are equally effective when given in therapeutically equivalent doses. The major differences are in the type and severity of side effects. Some people may respond well to one and not at all to another. Haloperidol acts on a portion of the brain called the hypothalamus. It affects parts of the hypothalamus that control metabolism, body temperature, alertness, muscle tone, hormone balance, and vomiting. Haloperidol is available in liquid form for those who have trouble swallowing tablets.
Cautions and Warnings
Haloperidol should not be used by people who are allergic or sensitive to any of its ingredients.
People with very low blood pressure, Parkinson’s disease, or blood, liver, heart, or kidney disease should avoid this drug.
If you have glaucoma, epilepsy or a history of seizures, ulcers, or difficulty urinating, haloperidol should be used with caution and under strict supervision of your doctor.
If haloperidol is used to control mania in bipolar disorder, a rapid depressive mood swing may occur.
Haloperidol can upset the body’s temperature-regulating mechanism creating a risk for heat stroke or dehydration.
Haloperidol may cause dystonia, tardive dyskinesia, or neuroleptic malignant syndrome, all serious conditions.
Possible Side Effects
V Most common: drowsiness, blurred vision, constipation, diarrhea, dizziness, dry mouth, headache, loss of appetite, nausea, stomach pain, or sleeplessness.
V Less common: jaundice (yellowing of the whites of the eyes or skin), which may occur in the first 2-4 weeks. The jaundice usually goes away when the drug is discontinued, but there have been cases in which it did not. if gou notice this effect, develop fever, or generally feel unwell, contact your doctor immediately. Other less common side effects are changes in components of the blood, including anemias; raised or lowered blood pressure; abnormal heartbeat; restlessness; anxiety; euphoria (feeling “high”); depression; confusion; acne-like skin reactions; excessive salivation;
Possible Side Effects (continued)
breast engorgement; development of breast tissue in males; vomiting; excessive sweating-, menstrual irregularities; impotence; and breathing difficulties.
¦ Rare: neurological effects such as spasms of the neck muscles, severe stiffness of the back muscles, rolling back of the eyes, convulsions, difficulty in swallowing, and symptoms associated with Parkinson’s disease. These effects usually disappear after the drug has been withdrawn; however, symptoms of the face, tongue, or jaw may persist for years, especially in seniors with a long history of brain disease. If you experience any of these effects, contact your doctor immediately. Other rare side effects can occur in almost any part of the body. Contact your doctor if you experience any side effect not listed above.
Drug Interactions
• Be cautious about taking haloperidol with barbiturates, sleeping pills, narcotics or other sedatives, tricyclic antidepressants, alcohol, or any other medication that may produce a depressive effect.
• Combining haloperidol with carbamazepine may decrease the effectiveness of haloperidol requiring a dosage adjustment.
• The use of azole antifungal agents (e.g. ketoconazole) may cause an increase in haloperidol side effects, possibly requiring adjustments in haloperidol doses.
• Anticholinergic drugs may reduce the effectiveness of haloperidol and increase the risk of side effects.
• Severe low blood pressure or heartbeat irregularities may occur if haloperidol is combined with epinephrine or dopamine.
• Taking lithium together with haloperidol may lead to disorientation, loss of consciousness, ry uncontrolled muscle Mwments.
• Combining fluoxetine with haloperidol may increase the effects of haloperidol.
• Haloperidol may increase the effects of antihypertensive drugs.
• Haloperidol may affect phenytoin levels, as well as levels of
other antipsychotic drugs.
• Careful dosage monitoring is required if haloperidol is taken
with rifampin.
Food Interactions
Haloperidol is best taken on an empty stomach, but you may take it with food if it upsets your stomach.
Usual Dose
Psychotic disorders
Adult: starting dose-0.5-2 mg 2 or 3 times a day. Some patients may need 3-5 mg 2 or 3 times a day. Rarely, some patients may require up to 100 mg a day.
Child (age 3-12 or 33-88 lbs.): starting dose-0.5 mg a day. Dosage may be increased in 0.5-mg steps every 5-7 days. Child (under age 3): not recommended.
Tourette’s syndrome
Adult: starting dose 0.5-1.5 mg 3 times a day; up to 10 mg a day may be needed.
Child (age 3-12 or 33-88 lbs.): 0.02-0.03 mg per lb. a day. The same dosages apply to children with behavioral disorders or hyperactivity.
Overdosage
Symptoms of overdose are depression, extreme weakness, tiredness, desire to sleep, coma, lowered blood pressure, uncontrolled muscle spasms, agitation, restlessness, convulsions, fever, dry mouth, and abnormal heart rhythm. The patient should be taken to a hospital emergency room immediately. ALWAYS bring the prescription bottle or container.
Special Information
This medication may cause drowsiness. Use caution when driving or operating hazardous equipment; also, avoid alcoholic beverages while taking it.
Haloperidol may cause unusual sensitivity to the sun. It may aIF4Q WVR your urine reddish-brown or pink.
If dizziness occurs, avoid sudden changes in posture and avoid climbing stairs.
Avoid extreme heat while taking haloperidol. This medication may make you more prone to heat stroke.
If you forget to take a dose of haloperidol, take it as soon as you remember. Take the rest of the day’s doses evenly spaced throughout the day. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: Serious problems have been seen in pregnant animals given large amounts of haloperidol. Although haloperidol has not been studied in pregnant women, you should avoid this drug if you are or might be pregnant.
Haloperidol passes into breast milk. Nursing mothers who must use this medication should use infant formula.
Seniors: Seniors are more sensitive to the effects of this medication and usually require 1/4-1/2 the usual adult dose. Seniors are also more likely to develop side effects.
Brand Name
Helidac
Generic Ingredients
Bismuth Subsalicylate + Metronidazole + Tetracycline
The information in this profile also applies to the following drug:
Generic Ingredients: Bismuth Subcitrate Potassium + Metronidazole + Tetracycline
Pylera
Type of Drug Antibacterial combination.
Prescribed For Duodenal ulcers.
General Information
Research has shown that the bacterium Helicobacter pylori is usually present in ulcer disease and some forms of gastritis. Drugs used to treat the H. pylori infection are prescribed along with a drug that alleviates ulcer symptoms by blocking stomach acid. There are a variety of approaches to treating ulcers by using combinations of various antibiotic and acid-blocking drugs. Helidac combines 3 drugs with antibacterial or antibiotic action. This combination generally works by disrupting the cell walls of the bacterium and interfering with its ability to make proteins or duplicate
itself. It is often prescribed together with ranitidine, cimetidine, or another acid Mocker. Other treatments use other drug comb-
nations.
Cautions and Warnings
Do not take Helidac if you are allergic or sensitive to any of its
ingredients.
Do not take Helidac if you have severe liver or kidney disease. People with less severe liver disease may require a reduced dosage.
Rarely, bismuth causes severe nervous system toxicity. Symptoms go away after the drug is stopped.
Bismuth subsalicylate can cause dark stools or darkening of the tongue. This darkening of stools is not dangerous; however, be aware that blood in the stool often manifests as blackening of the stool.
Children or teenagers who have or are recovering from chickenpox should not use Helidac because it contains a small amount of salicylate, which is related to aspirin. Children or teenagers who take aspirin or a salicylate may develop Reye’s syndrome: symptoms include nausea and vomiting.
Bismuth can also cause ringing in the ears, especially if taken along with another aspirin-containing drug.
Metronidazole can cause convulsive seizures and nervous system effects including numbness or tingling in the arms, legs, hands, or feet. The risk of developing these effects increases with dosage and duration of use. Call your doctor at once if you experience any of these effects.
Metronidazole should be taken with caution by people who have had blood diseases or nervous system disorders, such as seizure disorders.
Candida infections may worsen while you are taking metronidazole.
Other infections, called superinfections, can develop while you are taking tetracycline. If this happens, your doctor will discontinue Helidac and prescribe a different drug to treat your H. pylori infection, ;a% %0M as another drug to treat the superinfection.
Tetracycline should not be used in children under age 8 due to the risk of tooth discoloration.
People taking tetracycline can develop pseudotumor cerebri (pressure inside the brain), the symptoms of which are usually headache and blurred vision. Symptoms usually go away when the drug is stopped, but permanent damage can result.
Tetracycline may increase your sensitivity to the sun; use sun-
screen and wear protective clothing.
Tetracycline may make contraceptive drugs less effective. Another or additional forms of contraceptive should be used.
Possible Side Effects
? Most common: nausea and diarrhea.
? Less common: abdominal pain, blood in the stool, head-
ache, anal discomfort, appetite loss, dizziness, tingling in
the hands or feet, vomiting, muscle weakness, constipa-
tion, sleeplessness, pain, and respiratory infections.
For more information on possible side effects, see Metronidazole, page 718, and Tetracycline Antibiotics, page 1103.
Drug Interactions
• Tetracycline antibiotics, which are bacteriostatic, may interfere with the action of bactericidal (bacteria-killing) agents such as penicillin. You should not take both kinds of antibiotics for the same infection.
• Antacids, mineral supplements, and multivitamins containing bismuth, calcium, zinc, magnesium, and iron can reduce the effectiveness of tetracycline. Separate doses of your antacid, mineral supplement, vitamin with minerals, or sodium bicarbonate and Helidac by at least 2 hours.
• Tetracycline and metronidazole may each increase the effect of anticoagulant (blood-thinning) drugs such as warfarin. An adjustment in the anticoagulant dosage may be required.
• Cimetidine can increase metronidazole blood levels. Your metronidazole dosage may be reduced if you are also taking cimetidine.
• Tetracycline should not be used with methoxyflurane due to the risk of a toxic interaction.
• Tetracycline may increase blood levels of digoxin in a small number of people, leading to possible digoxin side etezks. (” %kjMt pelop% 1his’interaction with digoxin can occur for months after tetracycline has been stopped. If you are taking this combination, watch carefully for digoxin side effects and call your doctor if any develop.
• Tetracycline may reduce diabetic insulin requirements. If you are using this combination, be sure to carefully monitor your blood-sugar level.
• Tetracycline may increase or decrease lithium blood levels. Metronidazole raises lithium blood levels, effects, and toxicity.
• Combining alcohol and metronidazole may cause abdominal cramps, nausea, vomiting, headaches, and flushing. Modification of the taste of alcohol has also been reported. Metronidazole should not be used if you are taking disulfiram (a drug used to maintain alcohol abstinence) because the combination can cause confusion and psychotic reactions.
• Phenobarbital and other barbiturates can decrease metronidazole’s effectiveness.
• Drugs that cause nervous system toxicity, such as mexiletine, ethambutol, isoniazid, lincomycin, lithium, pemoline, and long-term high-dose pyridoxine (vitamin 136) should not be taken with metronidazole because of the increased risk of nervous system side effects.
• Metronidazole may increase phenytoin blood levels and the risk of phenytoin side effects; your doctor may need to adjust your phenytoin dosage.
Food Interactions
Do not take this drug with milk or dairy products. Helidac should be taken with meals and at bedtime.
Usual Dose
Helidac
Adult: Each dose consists of 4 pills. Take all 4 pills, 4 times a day for 14 days with a full glass of water. Take your acid blocker according to your doctor’s directions.
Child: not recommended.
Pyles
Adult: 3 pills 4 times a day for 10 days with a full glass of water. Take your acid blocker according to your doctor’s directions. Child: not recommended.
Overdosage
All 3 in(aMd1K1t ,in Helidac can be dangerous if taken in overdose, but salicylate poisoning is the most threatening. Symptoms of salicylate toxicity are rapid or heavy breathing, nausea, vomiting, ringing or buzzing in the ears, high fever, lethargy, rapid heartbeat, and confusion. Other more serious symptoms may develop. Take the victim to a hospital emergency room at once. ALWAYS bring the prescription bottle or container.
Special Information
Tetracycline can reduce the effectiveness of contraceptive drugs; you should use backup contraception while taking Helidac. Breakthrough bleeding is also possible.
Bismuth can cause a temporary darkening of your tongue or stool. This is a harmless effect. Stool darkening should not be confused with blood in the stool, which turns it black.
Avoid alcohol while taking Helidac and for 1 day after you stop taking it.
Call your doctor if you develop ringing in the ears. This can be a sign of salicylate toxicity from the bismuth.
If you forget a dose, take it as soon as you remember. If it is almost time for your next dose, skip the dose you forgot and continue with your regular schedule. Never take a double dose.
Special Populations
Pregnancy/Breast-feeding: Helidac should not be taken by pregnant women. Tetracycline affects bone and tooth development in the fetus.
Tetracycline and metronidazole pass into breast milk. Tetracycline interferes with the development of the child’s skull, bones, and teeth, and metronidazole also may cause side effects in the baby. Nursing mothers who must take Helidac should use infant formula.
Seniors: Seniors may take this drug without special restriction.
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Sunday, August 2nd, 2009
Generic Name
Clotrimazole (kloe-TRIM-uh-zole) 0
Brand Name Mycelex
The information in this profile also applies to the following drug:
Generic Ingredient: Sertaconazole Ertaczo
Type of Drug Antifungal.
Prescribed For
Fungal infections of the mouth, skin, and vaginal tract.
General Information
clotrimazole is useful against a variety of fungal organisms that other drugs do not affect. The exact way in which clotrimazole works is unknown. Sertaconazole is used for athlete’s foot in people age 12 and older with compromised immune systems.
Cautions and Warnings
Do not use this product if you are allergic or sensitive to any of its ingredients.
If clotrimazole causes local itching or irritation, stop using it. Do not use clotrimazole in your eyes.
Proper diagnosis is essential for effective treatment. Do not use this product without first consulting your doctor.
Possible Side Effects
Side effects are infrequent and usually mild.
Cream and Solution
V Most common: redness, stinging, blistering, peeling, itching, and swelling of local areas.
Vaginal Tablets
♦ Most common: mild burning, rash, mild cramps, and frequent urination. Your sexual partner may also experience some burning or itching.
Lozenges
V Most common: stomach cramps or pain, diarrhea, nausea, and vomiting.
Drug Interactions
None known.
Food %%ractions
The oral form of clotrimazole is best taken on an empty stomach, at least 1 hour before or 2 hours after meals. However, you may take it with food as long as you allow the lozenge to dissolve fully in your mouth.
Usual Dose
Topical Cream and Solution
Adult and Child (over age 2): Apply to clean, dry, affected areas morning and night for 7 consecutive days or as needed. For athlete’s foot and ringworm, use daily for 4 weeks. For jock itch, use daily for 2 weeks.
Vaginal Cream
Adult: 1 applicator’s worth at bedtime for 3-7 consecutive days.
Vaginal Tablet
Adult: 1 tablet inserted into the vagina at bedtime for 3 days, or 2 tablets a day for 3-7 consecutive days.
Lozenge
Adult and Child (over age 3): 1 lozenge 5 times a day for 2 weeks or more.
Overdosage
Little is known about the effects of clotrimazole overdose or accidental ingestion. Call your local poison control center for more information. If you seek treatment, ALWAYS bring the prescription bottle or container.
Special Information
If treating a vaginal infection, you should refrain from sexual activity. Call your doctor if burning or itching develops or if the condition does not improve within 7 days.
If you are using the vaginal cream, you may want to wear a sanitary napkin to avoid staining your clothing. Do not use a tampon during treatment.
Dissolve the lozenge slowly in the mouth. This may take up to 30 minutes.
This medicine must be taken on consecutive days. If you forget a dose of oral clotrimazole, take it as soon as you remember. Do not double your dose.
When using clotrimazole for skin infections, do not cover the area with any kind of bandage unless directed to do so by your doctor. For athlete’s foot, wear well-fitting, ventilated shoes, and change your socks at least once a day.
clotrimazole is not effective on scalp or nails.
Special Populations
Pregnancy/Breast-feeding: Women who are or might be pregnant should talk to their doctor about the medication’s risks and benefits. Women who are in the first 3 months of pregnancy should use this drug only if directed to do so by their doctor. If you are pregnant, your doctor may want you to insert vaginal tablets by hand rather than use a vaginal applicator.
It is unknown whether the drug passes into breast milk. Use with caution or use infant formula.
Seniors: Seniors may use this medication without special precaution.
Generic Name
Clozapine (KLOE-zuh-pene) 03
Brand Names
Clozaril FazaClo Orally Disintegrating Tablets
Type of Drug Antipsychotic.
Prescribed For Severe schizophrenia.
General Information
Clozapine is a unique antipsychotic that has the capacity to treat people who do not respond to or cannot tolerate other drugs. It works by a mechanism that differs from those of other antipsychotic drugs.
A very small number of people who take clozapine develop a rapid drop in their white-blood-cell count, known as agranulocytosis. This effect usually reverses itself when the drug is stopped, but the drug must be stopped as soon as it is discovered. An unusually large number of people who have developed clozapine algllaTwlocytosis in the United States are of Eastern European Jewish descent, but the association is not very strong. Most cases of agranulocytosis occur between week 4 and week 10 of treatment. It is essential that blood samples be taken approximately every week and for 4 weeks after the drug is stopped to watch for this effect. Because of the risk of agranulocytosis, clozapine should not be tried until at least 2 other antipsychotic medicines have failed.
Some people taking antipsychotic drugs develop tardive dyskinesia, a potentially irreversible condition marked by uncontrollable movements. Tardive dyskinesia has not been seen in patients taking clozapine, a major advantage of this drug over other antipsychotic medicines. However, there is still a risk that this set of symptoms could occur with clozapine.
Cautions and Warnings
Do not take clozapine if you are allergic or sensitive to any of its ingredients.
Women, seniors, people with serious illnesses, those who are emaciated. those with a history of diseases affecting the white blood cells, or those who are taking other medication that could affect white blood cells may be more susceptible to clozapine agranulocytosis.
Clozapine has been associated with increased mortality in seniors with dementia or Alzheimer’s disease. The specific causes of death related to clozapine and other atypical antipsychotic drugs were either due to a heart-related event or infection, mostly pneumonia. Clozapine should not be taken by those with dementia-related psychosis.
About 5% of people taking the drug experience a seizure in the first year of treatment. Seizure is most likely to occur at higher drug doses.
People with heart disease should be carefully monitored while on clozapine because of possible cardiac risks.
Clozapine may cause low blood pressure, especially at the beginning of therapy.
Clozapine has been associated with obesity, high cholesterol, high blood sugar, and diabetes. Diabetics and pre-diabetics (people with elevated blood sugar and a family history of diabetes) should be carefully monitored.
A serious set of side effects, known as neuroleptic malignant syndrome (NMS), includes a high lever and has been associated With clozapine when it is used together with lithium or other drugs. The symptoms that constitute NMS include muscle rigidity, mental changes, irregular pulse or blood pressure, increased sweating, and abnormal heart rhythm. NMS is potentially fatal and requires immediate medical attention.
Use this drug with caution if you have glaucoma, prostate
problems, or liver or kidney disease.
clozapine may interfere with mental or physical abilities because of the sedation it usually causes during the first few weeks
of treatment.
Possible Side Effects
✓ Most common: rapid heartbeat, low blood pressure, dizziness, fainting, drowsiness or sedation, salivation, and constipation.
✓ Less common: headache, tremor, sleep disturbance, restlessness, slow muscle motions, absence of movement, agitation, convulsions, rigidity, restlessness, confusion, sweating, dry mouth, visual disturbances, high blood pressure, nausea, vomiting, heartburn or abdominal discomfort, fever, and weight gain.
♦ Rare: agranulocytosis (symptoms include fever with or without chills, sore throat, and sores or white spots on the lips or mouth), tardive dyskinesia (symptoms include lip smacking or puckering, puffing of the cheeks, rapid or wormlike tongue movement, uncontrolled chewing motions, and uncontrolled arm and leg movements), and NMS (see “Cautions and Warnings”). Other rare side effects can occur in almost any part of the body. Contact your doctor if you experience any side effect not listed above.
Drug Interactions
• Clozapine’s anticholinergic effects—blurred vision, dry mouth, and confusion—may be enhanced by interaction with other anticholinergics, such as tricyclic antidepressants like amitriptyline.
• Drugs that reduce blood pressure may enhance the bloodpressure-lowering effects of clozapine.
• Alcohol and other nervous system depressants, including benzQUIQOmrn and other antianxiety drugs, may enhance clozapine’s sedative action. At least 1 person has died as a result of combining diazepam and clozapine.
• Combination contraceptive drugs may increase blood levels of clozapine leading to toxic side effects. Women starting on a combination contraceptive may need to have their clozapine dose adjusted.
• Clozapine should not be used with ritonavir.
• Cimetidine, caffeine, citalopram, ciprofloxacin, erythromycin, and ketoconazole may increase blood levels of clozapine resulting in increased side effects. Caution should be used with combining clozapine with paroxetine, fluvoxamine, or sertraline as similar reactions may occur, although these interactions are less well-defined.
• Clozapine may increase blood levels of digoxin, warfarin, heparin, and phenytoin.
• Use of clozapine with phenytoin, carbamazapine, and rifampin may cause decreases in blood levels of clozapine, reducing its effectiveness.
• The combination of lithium and clozapine may cause seizures, confusion, and NMS (see “Cautions and Warnings”).
• Cigarette smoking may alter clozapine dosage requirements.
• Combining selective serotonin receptor inhibitors (SSRls) with clozapine may require a lower clozapine dosage.
Food Interactions None known.
Usual Dose
Tablets
Starting dose: 25 mg in divided doses twice a day; maintenance dose generally, 300-450 mg a day in divided doses. Dosage may be increased gradually to a daily maximum of 900 mg in divided doses if required.
Orally Disintegrating Tablets
Starting dose: 12.5 mg once or twice a day increasing to 300450 mg a day in divided doses by the end of 2 weeks. Dosage may then be increased up to 900 mg a day in divided doses if required.
Overdosage
Symptoms of overdose are delirium, drowsiness, changes in heart rhythm, unusual excitement, nervousness, restlessness, hallucinations, excessive salivation, dizziness or fainting, slow or irregular breathing, and coma, Overdose victims must be taken to a hospital emergency room immediately. ALWAYS bring the prescription bottle or container.
Special Information
Clozapine may cause a fever during the first few weeks of treatment. Generally, the fever is not important, but it may occasionally be necessary to stop treatment due to a persistent fever.
Regular blood tests are necessary to monitor blood composition for any changes that might be caused by clozapine.
Call your doctor at once if you develop lethargy or weakness, a flu-like infection, sore throat, feelings of ill health, fever, sweating, muscle rigidity, mental changes, irregular pulse or blood pressure, mouth ulcers, or dry mouth that lasts for more than 2 weeks.
Dry mouth, a common side effect of clozapine, may be countered by using gum, candy, ice, or a saliva substitute such as Orex or Moi-Stir.
Do not stop taking clozapine without your doctor’s knowledge and approval, because a gradual dosage reduction may be necessary to prevent side effects.
Avoid alcohol or any other nervous system depressants while taking clozapine.
Some of the side effects of clozapine drowsiness, blurred vision, and seizures—may interfere with the performance of complex tasks like driving or operating hazardous equipment.
While taking clozapine, rapidly rising from a sitting or lying position may cause you to become dizzy or faint.
If you take clozapine twice a day and forget a dose, take it as soon as you remember. If it is almost time for your next dose, take 1 dose as soon as you remember and another in 5 or 6 hours, then go back to your regular schedule. If you take clozapine 3 times a day and forget a dose, take it as soon as you remember. If it is almost time for your next dose, take 1 dose as soon as you remember and another in 3 or 4 hours, then go back to your regular schedule. Never take a double dose.
Orally disintegrating tablets should be left in the unopened blister until time of use. They should not be pushed through the foil. Just prior to use, peel the foil from the blister and gently remove the orally disintegrating tablet. Immediately place the tablet in the mouth, allow it to disintegrate and then swallow with saliva. No water is needed.
Special Populations
Pregnancy/Breast-feeding: This drug Should be used during PM Only if your doctor determines that it is absolutely necessary.
clozapine may pass into breast milk. Nursing mothers who must take this drug should use infant formula.
Seniors: Seniors may be more sensitive to the side effects of clozapine, such as dizziness on rapidly rising from a sitting or lying po-sition, confusion, and excitability. Older men are also more likely to have prostate problems, a reason to be cautious with clozapine. Seniors with psychosis due to dementia who take clozapine are more likely to die from heart disorders and infections than those not taking it.
Generic Name
Codeine (KOE-deep) 0
Brand Name
Only available in generic form.
The information in this profile also applies to the following drugs: Generic Ingredient: Fentanyl
Actiq Lozenge on a Stick Fentora Buccal Tablet
Duragesic (Patch) lonsys (Patch)
Generic Ingredient: Morphine Sulfate 10
Avinza Oramorph SR
Kadian RMS Suppositories
MS Contin Roxanol MSIR
Generic Ingredient: Oxycodone Hydrochloride RE
Combunox OxyFAST
Endocodone OxylR
M-Oxy Percolone
OxyContin Roxicodone Oxydose
Generic Ingredient: Oxymorphone Opana
Type Q( UTUg Narcotic.
Prescribed For
Mild to severe pain, breakthrough cancer pain, and cough. Long-acting narcotics are meant only for people with chronic pain. Also prescribed for pain and anxiety in pediatric burn patients.
General Information
Codeine relieves pain and suppresses cough. The pain-relieving effect of 30-60 mg of codeine is equal to approximately 650 mg, or 2 tablets, of aspirin. Codeine may be less effective than aspirin for pain associated with inflammation because aspirin reduces inflammation and codeine does not. Codeine suppresses the cough reflex but does not cure the underlying cause of the cough. Other narcotic cough suppressants are stronger pain relievers, but codeine remains the best cough medication available.
Morphine sulfate is a pure narcotic that has been in use for many years. In addition to pain relief, morphine’s effects include drowsiness, mood changes, breathing difficulty, slowed movement of the gastrointestinal tract, nausea, vomiting, and changes in the endocrine and autonomic nervous systems. Morphine sulfate liquid, immediate-release tablets, and suppositories must be taken several times a day. The medication they contain is released immediately for absorption into the bloodstream. Extended- and controlled-release morphine products are designed to release some of the narcotic right away and the rest over a 24-hour period, allowing for less-frequent dosage.
Fentanyl is a potent pain reliever that can be substituted for other narcotic drugs. The patch form, which must be replaced about every 3 days, delivers fentanyl to the bloodstream at a steady rate. The lozenge has a shorter length of action than any other narcotic pain reliever, which makes it useful when given to children before surgery because it provides doctors with the flexibility to obtain maximum benefit with minimal side effects. The lozenge on a stick is used for breakthrough cancer pain as a booster for people already taking narcotic pain relievers. These forms should only be used under controlled circumstances because of the risk of side effects or overdose. Low dosages of fentanyl relieve pain—larger amounts cause loss of consciousness and breathing difficulties.
Oxycodone is a narcotic used to control moderate to severe pain. Most people take it together with aspirin (Percodan) or acetaminophen (Percocet), but it can be used by itself. This is a potent pain reliever that carries a risk (31 addiction with continued use.
Cautions and Warnings
Do not take narcotics if you are allergic or sensitive to any of their ingredients.
Long-term use of narcotics may cause drug dependence or addiction.
Use narcotics with extreme caution if you suffer from asthma or other breathing problems.
Narcotics may make it difficult to monitor the progress of people who have suffered head injuries and acute abdominal conditions.
Actiq contains fentanyl in an amount that can be fatal to children. Keep used and unused lozenges and lozenges on a stick out of reach of children.
Possible Side Effects
♦ Most common: lightheadedness, dizziness, sleepiness, nausea, vomiting, appetite loss, and sweating. If these occur, ask your doctor about lowering your dosage. Most of these side effects disappear if you lie down.
♦ Less common: euphoria (feeling “high”), headache, agitation, uncoordinated muscle movement, minor hallucinations, disorientation and visual disturbances, dry mouth. constipation, flushing of the face, rapid heartbeat, palpitations, faintness, urinary difficulties or hesitancy, reduced sex drive or impotence, itching, rash, anemia, lowered or raised blood sugar, and yellowing of the skin or whites of the eyes. Narcotic analgesics may aggravate convulsions in those who have had them.
More serious side effects of codeine are shallow breathing or breathing difficulties.
Drug Interactions
• Avoid combining narcotics with alcohol, sleeping medications, sedatives, other depressant drugs, or non-prescription drugs that have alcohol as an ingredient. Alcohol speeds the release of morphine from Avinza. The mixture can result in a deadly narcotic overdose.
• Narcotic analgesics should not be used at the same time as monoamine oxidase inhibitor antidepressants. Separate usage by at least 14 days.
• Combining a narcotic pain reliever with an anticholinergic medication may result in severe constipation.
• Combining a narcotic pain reliever with any other medication that lowers blood pressure can lead to excessive blood-pressure lowering. Avoid this combination.
• Combining cimetidine with a narcotic pain reliever may cause confusion, disorientation, breathing difficulties, and seizure.
• Reserpine, rifampin, and remifentanil may decrease the pain-relieving effects of morphine.
• Fentanyl should be used with caution with azole antifungals (e.g. ketoconazole).
Food Interactions
Codeine may be taken with food to reduce upset stomach. Morphine capsules and the fentanyl patch may be used without regard to food.
Usual Dose
Dosing of narcotic pain medications is highly individualized based on patient tolerance and response to medication.
Codeine
Adult: 15-60 mg every 4-6 hours for relief of pain; 10-20 mg every few hours as needed to suppress cough.
Child: 1 mg per lb. of body weight every 4-6 hours for relief of pain; 2.5-10 mg every 4-6 hours to suppress cough.
Fentanyl Lozenge and Lozenge on a Stick
Adult: 200-1600 mcg. Dosage may be repeated up to 4 times daily. Allow the lozenge to dissolve in your mouth. DO NOT CHEW. Child: not recommended.
Fentanyl Patch: Apply to a clean and non-irritated patch of skin as directed, usually once every 3 days.
Morphine Extended-release and Controlled-release
Tablets and Capsules
Adult: 1-3 capsules a day, depending on the specific product and individual need.
Morphine Oral Liquid and Immediate-release Tablets Adult: 5-30 mg every 4 hours.
Morphine Suppositories
Adult: 5-30 mg several times a day.
Oxycodone
Adult: 10-30 mg every 4 hours as needed. OxyContin should be swallowed whole and not broken.
Child: not recommended.
Overdosage
Symptoms include breathing difficulties or slowing of respiration, extreme tiredness progressing to stupor and then coma, pinpointed pupils, no response to pain stimulation, cold and clammy skin, slowing of heartbeat, lowering of blood pressure, convulsions, and cardiac arrest. The victim should be taken to a hospital emergency room immediately. ALWAYS bring the prescription bottle or container.
Special Information
Codeine is a respiratory depressant and affects the central nervous system (CNS), producing sleepiness, tiredness, or inability to concentrate. Be careful when driving or doing any task that requires concentration. Avoid alcohol.
Call your doctor if you develop breathing difficulties, constipation, dry mouth, or any bothersome or persistent side effect.
Apply the fentanyl patch only to non-irritated skin on a flat surface of the upper body. Hair at the application site should be clipped or cut, not shaved, before applying the patch. Do not use oils, soaps, lotions, alcohol, or anything else that might irritate the skin before applying the patch.
If you are taking a controlled-release narcotic product, do not crush, chew, or break the tablet or lozenge. Rapid release may result in a potentially fatal dose of the drug.
If you forget a dose of codeine, take it as soon as you remember. If it is almost time for your next dose, skip the one you forgot and continue with your regular schedule. Never take a double dose.
Special Populations
Pregnancy/Breast-feeding: Narcotics pass into the fetal circulation. Excessive use of them during pregnancy may cause drug dependence in newborns. Narcotics may also cause breathing difficulties in infants during delivery. Animal studies show that codeine may cause fetal harm. If given to a pregnant woman before cesarean section, fentanyl may cause drowsiness in newborns. When either of these drugs is considered crucial by your doctor, its potemt(a1 bel)elft must be carefully weighed against its risks.
Narcotics pass into breast milk. Nursing mothers who must take codeine should use infant formula.
Seniors: Seniors are more likely to be sensitive to side effects and should be treated with the smallest effective dosage.
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Thursday, July 30th, 2009
Generic Name
Bupropion (bue-PROE-pee-on) M
Brand Names
Budeprion Wellbutrin SR
Budeprion XL Wellbutrin XL
Wellbutrin Zyban
Type of Drug
Antidepressant and smoking deterrent.
Prescribed For
Depression, seasonal affective disorder, and nicotine addiction.
General Information
Bupropion is used for major depression and seasonal affective disorder, and may work as a smoking deterrent by acting on key hormone systems in the brain. It works primarily on dopamine and noradrenaline, unlike the SSRI antidepressants, which primarily work on serotonin. Bupropion may not act until you have taken it for 2-4 weeks. The drug clears your system about 2 weeks after you stop taking it.
Cautions and Warnings
Do not take bupropion if you are allergic or sensitive to any of its ingredients.
Antidepressants have been associated with an increased risk of suicide, especially in children and teenagers. Suicide is always a risk in depressed people, who should only be allowed to have minimal quantities of medication in their possession. Clinical worsening of a depressed person’s condition may also occur early
therapy with anticlepressa”kS.
People with seizure disorders, people who have had a seizure in the past, and people with bulimia or anorexia nervosa should be very careful about taking bupropion because they are at a higher risk of having a seizure. About 4 in 1000 people taking bupropion in dosages up to 450 mg a day develop a seizure. The risk of developing a seizure increases by about 10 times with dosages between 450 and 600 mg a day. About half of the people who developed a seizure on bupropion had a risk factor such as a history of head injury, a previous seizure, or a nervous system tumor, or were taking another drug associated with increased seizure risk.
People with unstable heart disease or those who have had a recent heart attack should take this drug with caution because of possible side effects.
Many people taking bupropion experience some restlessness, agitation, anxiety, and sleeplessness, especially soon after they start taking the drug. Some even require sleeping pills to counter this effect, and others find the stimulation so severe that they have to stop taking bupropion.
Bupropion may trigger a manic episode in those with depression or bipolar disorder.
People taking bupropion may experience hallucinations, delusions, or psychotic episodes. Dosage reduction or drug withdrawal is usually necessary to manage these reactions.
One-quarter of those who take bupropion lose their appetite and 5 or more lbs. of body weight. People who have lost weight due to their depression should be cautious about taking bupropion.
People switching from bupropion to a monoamine oxidase inhibitor (MA01) antidepressant, or vice versa, should allow at least 2 weeks to pass between stopping one drug and starting the other.
People with kidney or liver disease require less bupropion at the beginning of treatment. Dosage should be increased cautiously.
An antidepressant other than bupropion should be seriously considered for people with a history of drug abuse because of the mild stimulation bupropion causes. These people may require larger-than-usual dosages, but they are still susceptible to seizures at these higher dosages.
Possible Side Effects
About 10% of people stop taking bupropion due to side effects.
♦ Most common: dry mouth; dizziness; rapid heartbeat; headache, including migraine; excessive sweating; nausea; vomiting; constipation; appetite loss; weight changes: sedation; agitation; sleeplessness; and tremors.
Possible Side Effects (continued)
V Less common’. upset stomach, diarrhea, increased appetite, menstrual complaints, impotence, urinary difficulties, slowness of movement, salivation, muscle spasms, warmth, uncontrolled muscle movement, compulsion to move around or change positions, abnormal heart rhythms, blood-pressure changes, heart palpitations, fainting, itching, redness and rash, confusion, hostility, loss of concentration, reduced sex drive, anxiety, delusions, euphoria (feeling “high”), fatigue, joint pain, fever or chills, respiratory infection, and visual, taste, and hearing disturbances.
Drug Interactions
• Phenelzine (an MAGI) increases the risk of bupropion side effects. Allow at least 2 weeks to pass between stopping an MAGI and starting bupropion. Serious side effects can occur.
• Carbamazepine may reduce blood concentrations of bupropion.
• People taking both bupropion and levodopa + carbidopa or amantadine experience increased side effects. People taking these drugs should have their bupropion dosage increased gradually.
• Ritonavir may significantly increase bupropion blood levels and the risk of side effects.
• Don’t mix bupropion with other drugs that increase the risk of seizures—including tricyclic antidepressants, haloperidol, lithium, loxapine, molindone, phenothiazine sedatives, and thioxanthene sedatives.
• Combining bupropion with a nicotine replacement drug can cause high blood pressure.
• Combining bupropion with warfarin can increase the risk of side effects.
• Do not comtImP. INO~bujfin and Zyban, as they contain the same active ingredient.
• Alcohol should be avoided by people taking bupropion.
Food Interactions
Bupropion may be taken with food if it upsets your stomach.
Usual Dose
Depression
Adult: 200-450 mg a day; normal daily dosage is 300 mg. Child (under age 18): not recommended.
Smoking Cessation
Adult: 150 mg twice a day. Begin treatment while you are still
smoking.
Child (under age 18): not recommended.
Overdosage
Symptoms of overdose are likely to include severe side effects, such as seizures—present in a third of overdoses—hallucinations, loss of consciousness, and abnormal heart rhythms. Overdose victims should be taken to a hospital emergency room at once. ALWAYS bring the prescription bottle or container.
Special Information
Do not stop taking bupropion without your doctor’s knowledge. Suddenly stopping the drug may cause withdrawal reactions and side effects.
Call your doctor if you experience agitation or excitement, restlessness, confusion, difficulty sleeping, anxiety, panic attacks, sleeplessness, irritability, hostility, aggressiveness, acting impulsively, a manic reaction, deepening depression, suicidal thinking, fast or abnormal heart rhythm, severe headache, seizure, rash, fainting, or any unusual or persistent side effect.
Bupropion may make you tired, dizzy, or lightheaded. Be careful when driving or doing any task that requires concentration.
Alcohol, sedatives, and other nervous system depressants increase the depressant effects of this drug. Alcohol also increases the risk of a seizure.
If you forget a dose, take it as soon as you remember. If it is almost time for your next dose and you take it several times a day, take 1 dose as soon as you remember and another in 3 or 4 hours, then go back to your regular schedule. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: The safety of using bupropion during pregnancy is not known. When your doctor considers this drug crucial, its potential benefits must be carefully weighed against its risks. Pregnant women trying to quit smoking should use non-drug methods until their pregnancy is completed.
Bupropion passes into breast milk. Nursing mothers who must use bupropion should use infant formula.
Seniors: Seniors with reduced kidney or liver function may require reduced dosage.
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Thursday, July 30th, 2009
Type of Drug
Bowel Anti-Inflammatory Drugs (5-ASA Type)
Brand Names
Generic Ingredient: Balsalazide Colazal
Generic Ingredient: Mesalamine 0
Asacol Pentasa
Canasa Rowasa Lialda
Generic Ingredient: Olsalazine Dipentum
Prescribed For
Ulcerative colitis; rectal products prescribed for distal ulcerative colitis, proctitis, and proctosigmoiditis.
General Information
Chemical cousins of aspirin, these bowel anti-inflammatory drugs (5-ASA type) are used to treat symptoms of bowel inflammation. No one knows exactly how they work, but they are believed to have a local effect on the bowel. The tablet forms are made to delay drug release until they reach the colon. Little of the drug is absorbed into the blood; 70-90% remains in the colon.
Cautions and Warnings
Do not take bowel anti-inflammatories if you are allergic or sensitive to any of their ingredients or to aspirin. Although people who are sensitive or allergic to sulfasalazine have generally been able to tolerate mesalamine—which is an active agent in sulfasalazinethey should be cautious.
Bowel anti-inflammatories may worsev\ 4zo%Vis or cause cramping sudden abiboYrimall pain, bloody diarrhea, fever, headache, or rash. Stop taking the drug at once and call your doctor if any of these symptoms develop.
Some people taking mesalamine have developed kidney problems. People who have or have had kidney disease should be cautious about using these drugs. All people taking mesalamine should have kidney function tests before and during drug therapy.
Possible Side Effects
Bowel anti-inflammatories are generally well tolerated. Tablets and capsules have the most side effects, suppositories the least.
Tablets
♦ Most common: headache; abdominal pain, cramps, or discomfort; belching; nausea; sore throat; and generalized pain.
♦ Common: constipation, diarrhea, upset stomach, vomiting, muscle weakness, dizziness, fever, runny nose, rash, skin spots, achy joints, back pain, and stiff muscles.
✓ Less common: worsening of colitis, gas, runny nose, chills, sweating, feeling unwell, tiredness, acne, itching, arthritis, chest pain, conjunctivitis (pinkeye), painful menstruation, swelling, and flu-like symptoms.
♦ Rare: sleeplessness, hair loss, leg or joint pain, and urinary burning or infection. Other rare side effects can occur in almost any part of the body. Contact your doctor if you experience any side effect not listed above.
Capsules
♦ Less common: abdominal pain, cramps, or discomfort; diarrhea; nausea; headache; respiratory infection; rash; and skin spots.
♦ Rare: worsening of colitis, constipation, gas, vomiting, dizziness, fever, sleeplessness, belching, upset stomach, sweating, feeling unwell, tiredness, itching, acne, achy joints, leg or joint pain, muscle aches, conjunctivitis (pinkeye), swelling, and hair loss. Other rare side effects can occur in almost any part of the body. Contact your doctor if you experience any side effect not listed above.
Suppositories
✓ Common: headache.
✓ Less commQ(v, abdominal palecramps, or discomfort; diarrhea or frequent stools; worsening of colitis; flatulence or gas; nausea; rectal pain, soreness, or burning; dizziness; dry mouth; fever; sore throat; cold symptoms; acne; rash; skin spots; and swelling.
Possible Side Effects (continued)
Rectal Suspension
♦ Common: abdominal pain, cramps, or discomfort; gas; nausea; headache; and flu-like symptoms.
• Less common: bloating; diarrhea; hemorrhoids; pain on enema insertion; rectal pain, soreness, or burning; dizziness; fever; feeling unwell; tiredness; cold symptoms; sore throat; itching; rash; skin spots; back pain-, leg pain: and joint pain.
♦ Rare: constipation, muscle weakness, sleeplessness, swelling, hair loss, and urinary burning or infection. Contact your doctor if you experience any side effect not listed above.
Drug Interactions
None known.
Food Interactions
Take the tablet and capsule with food.
Usual Dose
Balsalazide
Tablets: 2250 mg 3 times a day for 8 weeks.
Mesalamine
Tablets: 800 mg 3 times a day for 6 weeks.
Once-daily tablets: 2-4 (1.2 mg each) once a day with a meal.
Capsules: 1000 mg 4 times a day for up to 8 weeks.
Suppositories: one 500-mg suppository twice a day for 3-6 weeks. Retain the suppository for 1-3 hours for maximum benefit.
Rectal Suspension: 1 bottle of suspension taken as an enema at bedtime every night for 3-6 weeks. The enema liquid should be retained for about 8 hours.
Olsalazine
k4kft, MO mg a day in 2 divided doses.
Overdosage
Symptoms are likely to include: ringing or buzzing in the ears, fainting or dizziness, headache, lethargy, confusion, drowsiness, sweating, rapid breathing, vomiting, and diarrhea. In case of overdose, call your local poison control center or hospital emergency room. You may be told to induce vomiting with ipecac syrup—available at any pharmacy—before taking the victim to the emergency room. If you seek treatment, ALWAYS bring the prescription bottle or container.
Special Information
The tablets and capsules must be swallowed whole. Call your doctor if they are visible in your stool. When using suppositories, handle them as little as possible to prevent melting.
Call your doctor if you develop chest pain, breathing or urinary difficulties, fever, unusual bleeding or bruising, worsening of colitis, or any bothersome or persistent side effects.
If you forget to administer a dose, do so as soon as you remember. If you take a tablet or capsule and it is within 4 hours of your next dose, skip the dose you forgot and continue with your regular schedule. If you take the suppositories or rectal solution and you do not remember until it is almost time for the next dose, skip the one you forgot and continue with your regular schedule. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: Bowel anti-inflammatories can pass into the fetal circulation. When your doctor considers these drugs crucial, their potential benefits must be carefully weighed against their risks.
Small amounts of these drugs can pass into breast milk. Nursing mothers who must take these drugs should consider using infant formula.
Seniors: Seniors may use these drugs without special restriction.
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Posted in Drugs B | No Comments »
Saturday, June 27th, 2009
mupirocin An antibacterial agent that is effective against most of the pathogens responsible for skin infections. It is used as a 2% ointment in impetigo, folliculitis and similar conditions. It should not be used for longer than 10 days to avoid the development of resistance. (Bactroban).
mustine A cytotoxic drug used mainly in the treatment of Hodgkin’s disease and related conditions.
Dose: 0.1 mg/kg daily for 3 days as a fast-running i.v. infusion, or as a single dose of oA ing/kg. The solution is highly irritant, and extra venous injection causes very severe local necrosis. Side-effects include severe vomiting, bone marrow depression and alopecia. Close haematologicalcontrol during treatment is essential. Now in less frequent use. See page 122 and Tabl’. 8.
nabumetone A non-acidic anti-inflammatory agent of the naproxen type. It is effective in rheumatoid and osteoarthritis and has reduced gastric irritant properties. Dose: I g at night. Reduced closes are necessary in renal impairment, and the dose of any oral anticoagulant or hypoglycaemic agent may require adjustment. (Relifex). See page 165 and Table 29.
nadolol A beta-blocking agent with the
actions and uses of propranolol.
Dose: in angina, 40 mg daily, or more; in hypertension, 80 mg daily, increased slowly as required; in the prophylaxis and treatment of migraine, 80-160 mg daily. Maximum daily dose 240 mg. (Corgard). See pages 114 & 148, and Tables 4 & 21.
nafarelin A synthetic suppressant of steroid production by the gonads, and used in the treatment of endometriosis.
Dose: given as it once-only course of treatment by nasal spray in doses of 200 pg twice a day, starting between 2 and 4 days of the menstrual cycle, and continued for up to 6 months. Side-effects are numerous and of the menopausal type. (Synarel). See buserelin, goserelin and leuprorelin.
mycophenolate mofetil An immunosuppressant used together with cyclosporin and corticosteroids to prevent acute renal transplant rejection. It acts on a specific enzyme concerned with”]’- and B-lymphocyte proliferation, as well as inhibiting antibody formation.
Dose: 2 g daily, starting within 24 hours (d transplantation. Blood counts are necessary during treatment, and, as with other immunosuppressants, there is an increased risk of opportunistic infection. (CellCept).
nabilone A cannabinoid antiemetic used in the treatment of nausea and vomiting associated with cancer chemotherapy. Dose: 2-4 ing daily, beginning the day before cytotoxic treatment is commenced, and continued for a day after the end of the course. Side-effects are drowsiness, confusion and tremor. Care is necessary in liver dysfunction or any history of psychotic illness. See page 158.
naftidrofuryl A peripheral and cerebral vasodilator. Claimed to be of value in cerebrovascular disorders.
Dose: 300-600 ing daily. (Praxilene).
nalbuphine An opioid analgesic, comparable with morphine in potency, but with reduced side-effects and a reduced dependence potential.
Dose: by injection, 10-20 ingas required. It may cause nausea and dizziness, and care is necessary in respiratory, renal or hepatic dysfunction. (Nubain).
nalidixic acid A quinolone antibacterial agent used in cystitis and infections of the lower urinary tract, especially those due to Gram-negative bacteria (except Pseudornoricts). It is not suitable for systemic infections as the blood levels reached with nalidixic acid are too low to be effective.
Dose: 4 g daily for 7 days, with subsequent doses of 2 g daily. Side-effects arc nausea, visual disturbance, rash, jaundice and phototoxicity. Exposure to sunlight should be avoided; epilepsy is a contraindication. (Mictral; Negrain). See ciprotloxacin and norfloxacin.
naloxone A powerful and rapidly acting opioid narcotics antagonist. It is used immediately after operation to reduce any narcotic-induced respiratory depression. Dose: 100-200µg i.v. initially, followed by 100 µg at 2- minute intervals, as required. For neonates, 10 pglkg by iniection are given. In narcotic analgesic overdose, 800 lig-2 nig may be given, 111, to a total dose of 1 0 ing. (Narcan).
naltrexone A long-acting narcotic antagonist used only to prevent relapse and maintain recovery after treatment for opioid addiction. It prevents re-addiction only whilst the drug is being taken. Dose: 25 ing initially, later up to 50 mg daily. It must not be given to patients who are still opioid-dependent as an acute withdrawal syndrome may be precipitated. (Nalorex).
nandrolone An anabolic steroid related to testosterone, with markedly reduced virilizing properties. It has anabolic or tissue-building properties and has been used in postoperative convalescence, osteoporosis and wasting diseases but the response is poor. It is sometimes effective in aplastic anaemia.
Dose: 50 ing by deep Lin. injection every 3 weeks. (Deca-Durabolin).
the prophylactic treatment of asthma, but it is not effective in an established attack. Dose: by aerosol inhalation, 8 mg (4 pulls) daily. Side-effects are transient nausea and headache. (Tiladc). See page 118. It is also used as eye drops in allergic conjunctivitis. (Rapitil). See page 118 and Table 2.
nefazodoneV A new antidepressant of the selective serotonin-re-uptake inhibitor (SSRI) type.
Dose: 200-600 mg daily. (Dutonin).
nefopam An analgesic for moderate, acute and chronic pain before using more potent drugs. Dose: 90-270 ing daily; 20 mg by i.m. injection. Side-effects include drowsiness, headache and tachycardia. Care is necessary in hepatic or renal disease. (Acupan).
neomycin An antibiotic with a wide range of activity against Gram-positive and Gram-negative bacteria, but it is too toxic for systemic use. It is used mainly as an
ointment or cream (0.5%), often with an anti-inflammatory steroid, in infected skin conditions. It is also used locally for ear and eye infections as drops (0.5%), and it is occasionally given orally in doses of 6 g daily before bowel surgery. Extended local use may cause allergic reactions, and occasionally ototoxicity. (Mycifradin; Nivemycin).
73
naproxen A widely used non-steroidal anti-inflammatory agent (NSAID) for the relief of rheumatic and musculoskeletal
disorders and acute gout.
Dose: 10-1 g daily, increased up to 2g daily in severe conditions. Suppositories of 500 ing are useful at night to reduce morning stiffness. Side-effects include headache, dizziness, and dyspepsia with occasional bleeding. Blurred vision may also occur, as well as I p hy ersensitivity reactions such as rash and bronchospasm. Care is necessary in renal and hepatic impairment; peptic ulcer is a contraindication. (Naprosyn; Syntlex). See page 165 and Table 29.
naratriptanVA serotonin (5-H’I',) receptor agonist for the treatment of acute migraine. Dose: 2.5 mg. A second dose may be given after at least 4 hours if the symptoms recur. (Nararnig). See page 154 and Table 23.
nedocromil An inhibitor of the release of inflammatory mediators in the respiratory tract. It is used like sodium cromoglycate in
neostigmine An inhibitor of cholinesterase which thus indirectly prolongs the action of acetylcholine released at nerve endings. It is used mainly in the treatment of myasthenia gravis.
Dose: 75-300 mg daily; 1-23 mg by injection. Side-effects are nausea, salivation, diarrhoea and abdominal cramp, and supplementary treatment with an anticholinergic drug may be required. It is also used postoperatively to antagonize the residual effects of muscle relaxants. Dose: 1-5 mg i.v., after a preliminary iniection of 0.3-1 nig of atropine. It is contraindicated in urinary or intestinal obstruction. (Prostiginio).
netilmidn An aminoglycoside antibiotic, less toxic than related drugs. Used mainly in severe infections of the urinary and respiratory tracts that are resistant to gentamicin. Dose: 4-6 mg1kg daily by i.v. injection; in urinary tract infections a single oral daily dose of 150 mg is given for 5 days. Side-’ effects are dizziness, vertigo, malaise and rash; ototoxicity may also occur. (Netillin).
neuromuscular blocking agents Drugs used to induce adequate muscle relaxation under a light plane of anaesthesia to facilitate surgery. The non-depolarizing agents such as vercuronium compete with acetylcholine at the neuromuscular receptor site, and have a relatively long action that can be reversed by neostigmine. The depolarizing relaxants, such as suxamethonium, have an acetylcholine-like action oil the receptor site, but as they are broken down less rapidly than acetylcholine, they delay the return of the ability of the muscle to contract again. The action of suxamethonium cannot be reversed by neostigmine.
niacin See nicotinic acid.
nicardipine A calcium channel blocking agent with it coronary vasodilator action similar to that ofverapaiiiii, but with reduced anti-arrhythmic activity. It is used mainly in angina and hypertension, and unlike verapamil it may be given to patients already receiving beta-blockers. Dose: 60-120 ing daily. Side-effects arc dizziness, flushing, nausea and palpita-
tions. If chest pain occurs early, the drugshould be withdrawn. Marked aortic
stenosis is a contraindication. (Cardene). See page I H and ‘]’able 4.
niclosamide A synthetic anthelmintic of value in the elimination of tapeworm. Dose: after lasting 2 g followed 2 hours later by a purge. The tablets should be chewed or crushed, and taken with a glass of water. Side-effects are nausea and abdominal pain, and occasionally pruritus. (Yoniesan).
nicorandil A cardiac drug that has an action mediated by the activation of potassium channels. It reduces the excitability of cardiac muscle and promotes coronary circulation, and is used in the prophylaxis and treatment of angina.
Dose: 5 10ing twice daily initially, rising to a maxintuin of6onig daily. Side-effects are initial headache, palpitations, dizziness. (lkorel). See page 114 and Table 4.
nicotinarnide A compound derived from nicotinic acid, possessing similar properties, but differing in that it has little vasodilator action. It is useful in
deficiency states as well as in pellagra when the vasodilator action of nicotinic
acid limits the dose. It is also used locally as a 4% gel (Papulex) for the treatment of inflammatory acne vulgaris.
nicotinic acid An essential food factor, occurring in yeast, liver, etc., but now prepared synthetically. It is a specific in the treatment of pellagra. It causes vasodilation, and has been used in Wni&e’s disease and chilblains, but with variable results. In large doses it reduces the plasma levels of some lipoproteins. Dose: 10-30 mg daily for prophylaxis; therapeutic dose in pellagra, 250-500 mg daily. In hyperlipidacinia up to 6 g daily have been given. Side-effects include flushing, dizziness and pruritus, which may sometimes lie reduced by taking aspirin 75 mg half an hour before a dose. See page 146,
nicotinyl alcohol A derivative with the vasodilator properties of nicotinic acid, but they are less intense. Useful in peripheral circulatory disturbances such as Raynaud’s disease and acrocyanosis. Dose: 100-200 mg daily. (Ronicol).
nicournalone A synthetic anti-coagulant similar to warfarin, and used mainly in the treatment of deep-vein thrombosis. Dose: 8-12 ing initially; subsequent doses are based on the response, as shown by determination of the blood prothrombin time, expressed as the International Normalized Ratio (INR). Haemorrhage is a potential side-effect. (Sinthrome).
nifedipine A calcium channel blocking agent similar to verapamil, but with a more powerful peripheral and coronary vasodilator action. It is used in the treatment of angina, hypertension and Raynatid’s disease, and may be given if required in association with a beta-blocking agent.
Dose: in angina, 15-60 mg daily; in hypertension 40-80 mg daily. Side-effects are flushing and headache, which are usually transient, and some ankle oedema may occur. It should be withdrawn if anginal pain develops. Severe aortic stenosis is a contraindication. (Adalat• Coracten; Nifensar). See pages 114 & 148, and “fables 4 & 21.
nimodipine A calcium channel blocking agent that acts preferentially on the cerebral vessels. It is used in subarachnoid haemorrhage to prevent ischaemic sequelae.
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Posted in Principal Drugs A-Z | No Comments »
Saturday, June 27th, 2009
lithium succinate Lithium succinate appears to have sonic antifungal and anti-inflammatory properties, and is used as an 8% ointment for seborrhoeic dermatitis. (Ftalith).
lodoxamide A mast cell stabilizer similar to sodium cromoglycate. Used as eye drops (0.1%) in allergic conjunctivitis. (Alomide).
Dose: in acute diarrhoea, 4 mg initially, followed by 2 nig as required, up to a maximum of 16 ing daily. In chronic diarrhoea, 4-8 nig daily, but care is necessary in the elderly to avoid faecal impaction. Loperamide is not suitable for children under 4 years of age, nor in patients with liver disease, as it may cause undesirable sedation. (Iniodium).
loprazolam A benzodiazepine hypnotic used mainly in the short-term treatment of insomnia and nocturnal arousal. Dose: 1-2 nig at bedtime. Side-effects include drowsiness, dizziness, dry mouth and headache. See page 152 and Table 22.
loratadine An antihistamine with the general action of that group of drugs, but with reduced sedative side-effects.
Dose: 10 nig dailv. (Clarityn). See page I 10 and Table 2.
63
lofepramine An antidepressant of the irnipramine group, with similar actions and uses, but reduced sedative and anticholinergic side-effects.
Dose: 140-210 nig daily. (Gamanil). See page 128 and Table 11.
lofexidine A narcotic antagonist. It has a selective blocking action on brain nor-adrenaline, and is used for the rapid relief of opioid withdrawal symptoms associated with central sympathetic activity.
Dose: 200 pg twice a day, slowly increased as required over 7-10 days, before withdrawal over 2-4 days. Care is necessary in cardiac insufficiency and bradycardia. (Britl.olex).
lomotil A preparation of diphenoxylate with atropine, for the rapid control of diarrhoea. Dose: 2 tablets 6-hourly.
lomustine A slow-acting cytotoxic agent used in Hodgkin’s disease and solid tumours.
Dose: 130 ing/ni’body surface at intervals of (> 8 weeks. Side-effects, include anorexia. nausea, liver damage and niyelodeprm ion. Dosage should not be repeated until white cell and platelet counts have returned to an acceptable level. Reduced doses are given
when lomustine forms part of a multi-drug dosage scheme. (CCNU). See page 122 and Table 8.
loperamide A synthetic inhibitor of peristalsis.
lorazepam A short-acting anxiolytic/ hypnotic similar to diazepam, but less likely to cause next-day drowsiness. Dose: 1-4 mgdaily. It is also given in similar oral closes or by slow i.v. injection in doses of 50 pglkg for preoperative sedation and anuiesia. Occasionally used i.v. in status epilepticus in doses of 4 nig, but apnoea and hypotension are side-effects that may require resuscitation. fAtivan). See page 152 and Table 22.
lormetazepam A short-acting benzodiazepine hypnotic. It is useful in the treatment of insomnia in the elderly, but is less suitable for insomnia associated with early awakening.
Dose: 500 fig I nig at night. See page 152 and ‘]’able 22.
losartanV An angiotensin 11 receptor antagonist used in the treatment of hypertension.
Dose: 50ing daily The use of potassium-sparing diuretics should be avoided with losartan. It has the advantage of not causing the persistent dry cough associated with ACE inhibitors. (Cozaar). See page 148 and Table 21.
low molecular weight heparins See heparin.
loxapine Antipsychotic agent with the actions and uses of chlorpromazine. Dose: in acute and chronic psychoses, 25-50 mg daily, slowly increased as required. Maintenance doses range from 20-100111g daily. Side-effects are those of other anti-psychotic agents. but loxapine may cause nausea, vomiting and weight changes. f .oxapac). See page 168 and Table 30.
I Mob
magnesium hydroxide A mild antacid laxative, usually given in aqueous suspension as Cream of Magnesia, although tablet forms are also available. Cream of Magnesia is a useful antidote in mineral acid poisoning.
64
Lugol’s solution An aqueous solution of iodine 5% and potassium iodide 10%. Used in the preoperative treatment of t hyrotoxicosis.
Dose: 0.3-1 ml.
lymecycline A soluble complex of tetracycline and lysine. It has the action and uses and side-effects of tetracycline, but is absorbed more readily.
Dose: 800 mg daily. (Tetralysal).
typressin An analogue of vasopressin used to control the polyuria of pituitary diabetes insipidus.
Dose: 2.5-10 units several times a day by nasal spray. Side-effects include nausea and abdominal pain. I.ypressin has some vasoconstrictor properties, and desmopressin is sometimes prellcrred. (Syntopressin).
lysuride (lisuride) A bromocriptine-like drug for the treatment of parkinsonism. II acts by stimulating any surviving dopamine receptors in the brain.
Dose: 200 pg at night with food,
irk ceased at weekly intervals according to response up to a maximum of 5 mg daily. Side-effects include nausea, dizziness and initial hypotensive reactions which may affect driving ability. (Revanil). See
page 160 and Table 26.
magnesium sulphate Epsom salts. A powerful saline aperient, producing loose stools by preventing the reabsorption of water.
Dose: 5- 15 g before breakfast. Used externally for the treatment of boils and carbuncles as a paste with glycerin. A marked loss of plasma magnesium may occur after severe diarrhoea or drug-induced diuresis, and may require the i.v. infection of magnesium sulphate in doses based on the degree of hypoinagnesacmia. It has also been given i.v. in a dose of 8 mmol in the emergency treatment of severe;U’rhythinias associated with hypokalaemia.
magnesium trisilicate A white insoluble powder, with mild but prolonged antacid effects. It was formerly widely used in the symptomatic treatment of peptic ulcer;
now used chiefly for dyspepsia.
Dose: 0.3-2 g.
malathion An organophosphorus insecticide. Used as a lotion 0.5% for lice and scabies as alternative to lindane or carbaryl.
mannitol A sugar that is not metabolized, and is used mainly as an osmotic diuretic. Dose: (after a test dose of 200 mg/kg) 50-200 g by slow i.v. infusion over 24 hours. Mannitol has also been used by i.v. infusion as a short-term ocular hypotensive agent in the treatment of glaucoma. It is also useful in cerebral oedema, given by rapid i.v. injection in a dose of I g/kg as a 2044, solution.
macrolides A group of antibiotics that differ chemically from the penicillins, yet have a similar pattern of activity. They are active orally and are useful in the treatment of penicillin-sensitive patients. Erythromycin is the most widely used member of the group, with clarithromycin and azithromycin as more recent introductions.
magnesium carbonate A white, insoluble powder with antacid and laxative properties.
Dose: 0J-4 g daily.
maprotiline A sedative antidepressant with a general action similar to that of the tricyclic drugs represented by amitriptyline. Dose: 25-150 mg daily. If given at night as a single dose, the sedative action may reduce the need for other drugs. It has milder anticholinergic side-effects than some related compounds, although skin rash is more common. (I udionlil). See page 128 and Table 11.
mebendazole An anthelmintic effective against most intestinal worms.
Dose: 100 mg once for threadworm, and 100 mg twice daily for 2 days against other infestations. Generally well tolerated, but it should not be given to children under 2 years of age. (Verniox).
I Men
in oedematous states. A potassium supplement may be required. Care is necessary in renal and hepatic deficiency.
(KiYcaron). See page 148 and Table 21.
mebeverine An antispasmodic agent which, unlike the anticholinergic drugs, appears to have a direct action on the intestinal smooth muscle. It is useful in the treatment of gastrointestinal spasm and in the irritable bowel syndrome. Dose: .100 mg daily, before food. As with other antispasmodics, mebeverine should not be used in paralytic ileus. (Colofac).
medroxyprogesterone A synthetic progestogen.
Dose: in endometriosis 30 mg daily for 90 days; in dysfunctional uterine bleeding and secondary amenorrhoea: 2.3-10 mg daily for 5-10 days, starling on l6th-2 Ist day of cycle and repeated for 2-3 cycles. Large doses of 400 mg-1.5 g daily are given in breast, endometrial, prostate and other hormone-dependent cancers, or 250mg– I g weekly by deep i.m. inJection. (Farlutal; proves). Depot-proves is a long-acting product used by i.m. injection is a contraceptive. but only after fit][ counselling.
megestrol An orally active progestogen. It is used in oestrogen-dependent breast cancer, and acts by suppressing the uptake of oestrogens by the cancer cells.
Dose: 160 mg daily. Nausea and fluid retention with weight gain are occasional side-effects. (Megace). See page 122.
meloxicarn A recently introduced non-steroidal anti-inflammatory drug (NSAID) indicated in the short-term treatment of acute osteo-arthritis and the longer-term treatment of rheumatoid conditions. Dose: 7.5-15 mg once daily with food; half doses for the elderly. Suppositories of 15 mg are also available. The side-effects are basically those of the NSAI Ds in general. Meloxicam has a more selective action on cyclo-oxygenase, the enzyme involved in the biosynthesis of prostaglandins, and is less likely to cause gastrointestinal disturbance, but it has no cytoprotective action, and is not suitable for patients with peptic ulcer. (Niobic). See page 165 and Table 29.
65
mefenamic acid A non-steroidal anti-inflammatory analgesic agent used to relieve moderate pain in arthritic and rheumatoid conditions, and other states requiring mild analgesic therapy such as dysmenorrhoea. Dose: 1.5 g daily after food. Side-effects are drowsiness an(] haemolytic anaemia. Diarrhoea is an indication that the drug should be withdrawn. (Ponstan). See page 165 and Table 29.
rnefloquine A drug for the prophylaxis and treatment ofchloroquine-resistant malaria. Dose: lot- short -term prophylaxis 250 mg weekly, starting 1 week before exposure and for 4 weeks after return. Doses for treatment require specialist advice. Side-effects include gastrointestinal disturbances, dizziness and weakness. It is contraindicated in patients with a history of neu ro- psych iatric disturbance, and is not suitable for use in severe renal or hepatic impairment. (Lirium). See halofantrine.
mefruside A diuretic useful in the treatment of hypertension and oedema. Dose: 25-50 mg daily in the morning, according to need and response; 25-100 mg
melphalan An alkylating agent of the mustine type. Used mainly in myelomas, lymphomas and some solid tumours. Dose: 150-300 gg/kg daily for 4-6 days, repeated after 1-2 months. In myeloma it is also given by regional perfusion. The injection solution is highly irritant and contact should be avoided. Side-effects include myelo-depression, nausea, rash and pruritus. (Alkeran). See page 122 and ‘rabic 8.
menadiol A water-soluble form of vitamin K. Dose: 10 ing daily. (Synkavit) Phytorneii,dionc i.% now preferred.
menotrophin Human menopausal gonadotrophin containing follicle-stimulating hormone and luteinizing hormone. It is used in the treatment of anovulatory sterility. The dose depends on individual hormone assays and response. The use of the drug has resulted in multiple births. It is also given to males to stimulate spermatogenesis. (Humegon; Normegon).
menthol Colourless crystals obtained from oil of peppermint. Used as spray or drops for nasopharyngeal inflammation.
Tags: acute diarrhoea, adrenaline, Allergy Treatment, alomide, amitriptyline, angiotensin, antacid, anticholinergic side effects, antispasmodic, arthritis, breast, bromocriptine, cancer, carbonate, cardiac insufficiency, chronic diarrhoea, compound, depression, diphenoxylate, Erythromycin, gastrointestinal, gastrointestinal disturbances, hodgkin s disease, hypertension, increase, infection, inflammation, infusion, inhibitor, injection, insecticide, irritable bowel syndrome, laxative, liver damage, liver disease, lomotil, lomustine, loperamide, losartanV, magnesium, mast cell, mebeverine, muscle, narcotic antagonist, olex, opioid withdrawal symptoms, patient, penicillin, potassium, powder, PREPARATION, progestogen, prostaglandin, rapid control, rapid relief, reabsorption, receptor, rheumatoid, rmetazepam, Side-effects, sodium cromoglycate, suppositories, synthetic progestogen, tetracycline, treatment of glaucoma, treatment of insomnia
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Wednesday, June 24th, 2009
dextromoramide A powerful synthetic analgesic with a shorter and less sedating action than morphine. Of value in severe and intractable pain, and in terminal disease.
Dose: 5 ing or more either orally or by injection, according to need and response. Care is necessary in liver dysfunction and respiratory depression. (Palfitunt).
dextropropoxyphene An orally effective analgesic. Of value in many painful conditions, and in malignant disease its use may delay the need to resort to the opiate analgesics.
Dose: 250 ing or more daily, but doses in excess of 700 mg daily may cause toxic psychoses and convulsions. (Doloxene). See co-proxaniol.
dextrose See glucose.
diazoxide An inhibitor of insulin secretion. Dose: given orally in doses of 5 ing/kg or more daily in severe hypoglycaemia. Also of value in severe hypertensive crisis, in
doses up to 150 mg by rapid i.v. injection. Side-effects arc nausea, tachycardia and oedema. (Eudernine).
diclofenac A non-steroidal anti-inflammatory drug (NSAID) of the naproxen type, pe, and used in rheumatoid, arthritic and similar conditions.
Dose: 75-150 ing daily, after food. Suppositories of 100 nigare useful at night, but may cause local irritation. In acute conditions and in postoperative pain, doses of 75 mg once or twice a day by deep i.m. injection for not more than 2 days. (Diclomax; Voltarol). Like other NSAIDs, diclofenac may cause gastric disturbance and hypersensitivity reactions. See page 165 and Table 29.
diamorphine A derivative of morphine with a more powerful analgesic an(] cough-suppressant action. It is also less liable to cause nausea. Valuable for the relief of severe pain and the suppression of useless cough. Addiction is a constant risk owing to the euphoric effects of the drug.
Dose: 5-10 nig orally or by injection, repeated as required. For severe pain in the terminally ill, addiction is of no consequence, and much larger doses are given according to need: if necessary, by continuous infusion or a syringe-pump device.
diazepam A benzodiazepine of value in anxiety states, insomnia, acute alcoholic withdrawal, and for premedication. It also has a muscle relaxant action, and is valuable when given by injection in status epilepticus and in the control of the spasm of tetanus.
Doses: 5-30 mg daily, 10-20 mg by slow i.v. injection as required, up to a maximum of 3 mg1kg in 24 hours. Absorption after Lin. injection is unreliable. It is sometimes given as suppositories of 5-10 ing. Side-effects are drowsiness, dizziness, respiratory depression and hypersensitivity reactions. Care is IICLL’N nary in glaucoma and renal and hepatic impairment. Fxterided treatment may lead to dependence and addiction, and withdrawal should be slow to avoid the risks of precipitating toxic psychosis, confusion and convulsions. (Stesolid; Valium). See pages 177 & 136, an(] Tables 5 & 15.
dicobalt edetate A specific antidote in acute cyanide poisoning; toxic in other conditions.
Dose: 300 mg by slow i.v. injection, followed by 50 ml of glucose solution 50%, repeated if required. (Kelocyanor). Sec .odium nitrite.
dicyclomine An anticholinergic agent used to reduce gastric hyperacidity and the smooth muscle spasm of gastrointestinal disorders.
Dose: 30-60 mg daily. Side-effects
include dryness of the mouth and blurred vision. (Ivlcrbcnlyl).
didanosine An antiviral agent used in HIV infections not responding to zidovudine. Dose: 400 mg daily before food. Diarrhoea, vomiting and peripheral neuropathy are side-effects. (Videx contains didanosine with antacids). See page 144 and Table 19.
dienoes A synthetic oestrogen used as a 0.025% cream for senile or atrophic vaginitis.
diethylcarbamazine A synthetic drug used in filariasis but long-term treatment is necessary.
Dose: I mg/kg daily initially, slowly increased to 6 mg/kg daily, and continued for 21 days. Low initial doses are necessary to reduce allergic reactions due to proteins released front dead %vornis. Side-effects include headache, nausea, rash and conjunctivitis. (I letrazan). See ivermectin.
diflucortolone A corticosteroid used topically as a 0.13′0 or 0.3% cream or ointment in steroid-responsive dermatoses. Of value in resistant conditions. (Nerisone).
diflunisal An anti-inflammatory and analgesic drug (NSAID), chemically related to aspirin, but with actions and uses similar to napmxen.
Dose: 500 ilig– I g daily. Care is necessary in aspirin-sensitive patients, and in peptic ulcer. (Dolobid). See page 163 and Table 29.
Digibind A highly purified preparation of sheep-derived digoxin-specific antibodies, given by i.v. infusion in digoxin overdose or poisoning. It mobilizes digoxin from cardiac receptor sites and binds it as an inert complex which is excreted into the urine, and symptoms of digoxin toxicity subside within an hour.
Dose: depends oil the amount of digoxin absorbed; 40nigcan neutralize about 600ligofdigoxiii.
I Dim
250-500 jig initially according to need. Nausea and vomiting are often signs of overdose. If the heart rate falls below 60 beats per minute, dosage rcquiresadill.ltmclit. See page 1.11 and Table 18.
digoxin- specific antibody See Digibind.
dihydrocodeine An analgesic derived from codeine, but with a more powerful action. Of value in many painful conditions where mild analgesics are inadequate. Dose: 30 mg orally after food, or 50 ing
by i.m. or deep s.c. injection at intervals of 4-6 hours according to need. Dizziness and constipation are side-effects. MIA 18).
dihydrotachysterol A sterol related to calciterol, but with more rapid calcium-mobilizing properties. It is used mainly in hypocalcaemia and parathyroid tetany, but is sometimes effective in calciferolresistant rickets.
Dose: 200 jig daily, adjusted to need according to plasma calcium levels as a solution in oil. (AT 10).
39
digitalis The dried leaf of the foxglove. It has a powerful strengthening and regulatory action oil the heart, but is now used as digoxin.
digitoxin The most powerful cardiac glycoside of digitalis and of value in heart failure and atrial fibrillation. Absorption is rapid but excretion, which depends on metabolism by the liver, is very slow, and cumulative effects may occur.
Dose: (maintanence) requires careful .iditminent, varying from 50-200 f.ig daily.
digoxin The principal cardiac glycoside obtained from digitalis leaf. It is rapidly absorbed orally, and is widely used in cardiac failure, paroxysmal tachycardia and atrial fibrillation. The diuresis of digoxin therapy is a secondary effect following on the improvement in the renal circulation.
Dose: for rapid digitalization, 1-1.5 mg initially over 24 hours: subsequent maintenance close 62.5-500 pg daily. For slow digitalization, 250-500 pg may be given daily for about a week, with subsequent closes based on the response. Elderly patients and children respond adequately to smaller doses, and tablets of 62.5 pg (Lanoxin-111G) are available for such patients. In emergency, digoxin call be given by slow i.v. injection in closes of
diloxanide A well-tolerated aniciellicide used in chronic intestinal anicielliasis when only cysts are present in the faeces. It is also used in acute infections, 5 days after a course of metronidazole.
Dose: 1.5 g daily for 10 days. (Furamide).
diltiazem A calcium channel blocking agent, used in the prophylaxis and treatment of angina, and useful when beta-blocking agents are unsuitable or ineffective.
Dose: 180-360 nig daily, reduced in renal impairment. It may cause bradycardia, ankle oedema and hypotension. potension. (Adizen; Tildiern). Sonic long-acting products with various brand mantes are used in hypertension. They should not be regarded as interchangeable, as the duration of action may vary. See page 114 and Table 4.
dimenhydrinate An antihistamine used mainly as all antiemetic in nausea, travel sickness and vertigo.
Dose: 100-300 ing daily. It may cause more drowsiness than sonic related drugs. (Dramamine).
dimercaprol (SAL) A specific drug for the treatment of poisoning by arsenic, mercury, gold and other heavy metals.
Tags: acute conditions, Addiction, ALLERGIC, Bradycardia, conjunctivitis, continuous infusion, cough suppressant, dextromoramide, dextropropoxyphene, dextrose, diazoxide, diclofenac, didanosine, digoxin, Doloxene, excess, glucose, hypersensitivity, hypersensitivity reactions, hypertensive crisis, hypoglycaemia, hypotension, impairment, inflammatory drug, inhibitor, injection, insomnia, insulin secretion, intractable pain, liver dysfunction, malignant disease, morphine, muscle, muscle relaxant, muscle spasm, nausea and vomiting, nsaid, opiate, opiate analgesics, Palfitunt, prophylaxis, psychoses, respiratory depression, sensitivity reaction, severe pain, Side-effects, spasm, suppositories, syringe pump, terminal disease, voltarol, vomiting, withdrawal, zidovudine
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Wednesday, June 24th, 2009
cytarabine A cytotoxic agent that prevents cell development by inhibiting the formation of nucleic acid. It is used mainly in the control of acute mycloblastic leukaemia.
Dose: 0.5-3 mg/kg daily by i.v. or s.c. injection. Close haematological control is essential as the drug is a powerful myclodepressant. Other side-effects are those of the cytotoxic drugs, generally, but fever, myalgia and bone pain may also occur. Alexan; Cv cos: r).
Dose: nig/kg, daily for 10 days, repeated after 4 weeks. Side-effects are severe nausea, bone marrow depression and an influenza-like syndrome. The drug should be handled with care, as it is a tissue irritant. (DTIC).
dactinomycin See actinomycin D.
dalteparin A low-molecular weight heparin given by s.c. injection for pre- and postoperative thrombo-embolic prophylaxis. Dose: 2500 units daily for 5 (lays. (Fragmin). See enoxaprin and tinzaparin.
cytotoxic drugs A term applied to drugs that can kill cancer cells. In practice, many factors influence their therapeutic value. They are rarely selective, and therapeutic doses usually have a toxic effect on sonic normal cells. They may attack cancer cells at different stages of development, as actively dividing cells are more susceptible than resting cells. They may not reach the cancer cells in adequate concentration, or resistance to the drug may develop. The dose may also depend to some extent on the patient’s tolerance of the drug, and combined treatment with two or more drugs may have the advantages of increased potency with reduced toxicity. All cytotoxic drugs, with the exception of bleomycin and vincristine, bring about a depression of the bone marrow, which may be severe, and some degree of hair loss, which is usually reversible. Severe nausea and vomiting are also common, and early use of powerful antiemetics is essential. Many cytotoxic agents are tissue irritants, and with i.v. treatment great care must be taken to avoid extravasation, as severe local tissue damage can occur. See alkylating agents and antimetabolites. See page 122.
clacarbazine A cytotoxic drug that appears to depress purine metabolism and the formation of DNA. It is used mainly in malignant melanoma, and in combination with other agents it is of value in other malignant conditions.
clanazol A derivative of ethisterone that inhibits the release of pituitary gonadotrophins. Used in conditions such as endometriosis and gynaecomastia. Dose: 200-800 ing daily, starting during menstruation. Side-effects are nausea, dizziness, rash, flushing and hair loss. Care is necessary in cardiac, renal or hepatic impairment, and in epilepsy and diabetes. (Danol).
danthron A synthetic anthraquinone laxative used mainly for constipation in the aged, and in drug-induced constipation in the terminally ill. Not suitable for routine use by other patients.
Dose: given in doses of 25–25 mg as codanthramer, and acts within 6-12 hours. the urine may be coloured red.
dantrolene A skeletal muscle relaxant that acts on the muscle fibre, and not at the myoneural junction. The action may be linked with an interference with the movement of calcium ions. It is used in the severe and chronic spastic states that occur after stroke, spinal cord injury, and in multiple sclerosis.
Dose: 21 ing daily initially, increased at weekly intervals up to a maximum of 400 mg daily, as the response is slow and May be inadequate. The side-effects of weakness and Gangue are mild, and often transient, but liver function tests during treatment are essential. Dantrolene is also of value in malignant hyperthermia, a rare but serious complication of anaesthesia, and is given in doses of I mg/kg by i.v. injection as soon as the condition is diagnosed,
dapsone A sulphone compound used in the ti,atnient of leprosy.
Dose: 25-400 mg orally twice weekly and continued for some years. Resistance to dapsone may occur, and combined treatment with clofazimitic and rifarnpicin may lie necessary. Dapsone is sometimes given with pyrimetharnine in chlotoquine-resistaut malaria. Side-effects are nausea, rash, neuropathy and myelodepression.
duration of action. Used in the diagnosis and control of diabetes insipidus, and in the treatment of nocturnal eneuresis. Dose: 10-20pg intranasally once or twice
a day; 1-4 pg daily by injection. IMAM.
desoxymethasone A corticosteroid, for local application in acute inflammatory and allergic skin conditions. Used as oily cream 0.25%. (Stiedex).
daunorubicin See doxorubicin.
debrisoquine An adrenergic neurone blocking agent with the actions, uses and side-effects of guanethidine, except that it is less likely to cause diarrhoea. It is used mainly in resistant hypertension, in association with other drugs. (Declinax).
See page 148 and Table 21.
deflazacort A glucocorticoid with the actions and uses of related drugs, and comparable in activity with prednisolone. Dose: initially in acute conditions up to 120 mg daily; maintenance dose 3-18 mg daily. (Calcort). See hydrocortisone, page 55 and Table 36.
demeclocycline An antibiotic with the actions, uses and side-effects of tetracycline, but more likely to cause photo-allergic reactions.
Dose: 600 mg daily. Used occasionally in hyponatraemia due to overactivity of the antidiuretic hormone. (Ledermycin).
desferrioxamine A chelating agent that combines with iron salts to form a soluble non-toxic complex. Of great value in acute ferrous sulphate poisoning in children. Dose: 2 g immediately by i.m. injection, together with gastric lavage (2 g of desferrioxamine/1) followed by a single oral dose of 10 g. It may also be given by continuous i.v. infusion, 15 mg/kg hourly up to a maximum of 80 mg/kg. It may cause hypotension if the infusion is given too rapidly. It is also useful in the treatment of iron-overload caused by repeated blood transfusions, and for aluminium overload in patients On dialysis. (Desferal).
desflurane An inhalation anaesthetic
similar to CuflUrane. (Suprane).
desmopressin A derivative of vasopressin, with increased potency and longer
dexamethasone A potent synthetic corticosteroid, with reduced salt-retaining properties. Useful in all conditions requiring systemic corticosteroid therapy (except Addison’s disease), including inflammatory and allergic disorders, shock, cerebral oedema and adrenal hyperplasia.
Dose: 0.5-2 mg daily up to a MaXiMUM Of’ 15 mg daily; in shock, 5-20 mg by slow i.v. injection or infusion; in cerebral oedema, 10 ing initially by i.v. injection, followed by 4 mg i.m. 6-hourly. Dexamethasone is also given by infra-articular injection for local inflammation of joints in doses of
0.4-4 mg. It is also used as eye drops (0.1%)
in uveitis, but care is necessary with prolonged treatment as with some patients a ’steroid glaucoma’ may be precipitated. (Decadron). See page M and Table 36.
dexamphetamine sulphate A central nervous system stimulant. It is used in the treatment of narcolepsy and, paradoxically, it is sometimes useful in hyperkinesia in children.
Dose: in narcolepsy, 20-60 mg daily; in hyperkinesia 2.5 mg initially, slowly increased up to a maximunl’of 20 mg daily. Side-effects are insomnia, anorexia and agitation. Dependence and tolerance may occur early. (Dexedrine).
dextran A blood-plasma substitute
obtained from sucrose solutions by bacterial action, and used as solutions of varying molecular weight (dextran 40, 70). Dextran 70 is used as a blood volume expander by i.v. injection in some cases of shock; dextran 40 is used mainly to improve postoperative peripheral circulation, reduce blood viscosity, and to prevent thrombo-embolism. Care must be taken to adjust dose to avoid overloading the circulation. Any blood-matching should be carried out before giving dextran. (Gentran; Macrodex; Rheomacroclex).
Tags: acid, alkylating agents, allergic reactions, Allergy Treatment, amphetamine sulphate, antiemetics, bleomycin, bone pain, cancer, cancer cells, central nervous system, corticosteroid, cytarabine, cytotoxic agents, cytotoxic drugs, dactinomycin, dalteparin, dantrolene, dapsone, dependence, depression, development, dexamphetamine, diabetes insipidus, extravasation, fragmin, hydrocortisone, hypertension, inflammation, injection, leukaemia, liver function tests, maximum, molecular weight, muscle, muscle relaxant, myalgia, myclodepressant, nausea and vomiting, prophylaxis, Side-effects, Syndrome, system stimulant, therapeutic doses, therapeutic value, thrombo, tinzaparin, toxic effect, vincristine
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Tuesday, May 19th, 2009
Coeliac Disease
During World War 11, there was no bread to be had in the Netherlands and people were forced to eat tulip bulbs. ‘My mother roasted them,’ one survivor recalls, ‘and they tasted delicious then, because we were so hungry I suppose. I cooked some years later, just to taste them again, and they were absolutely disgusting.’
While most of the population was thin and unwell on this starvation diet, a few children were actually healthier than before. An observant Dutch doctor noted that these were the children who, before the war, had suffered from constant diarrhoea, fatigue, poor growth and muscle wasting. They were suddenly stronger and, his enquiries revealed, their diarrhoea had vanished. But when the food situation improved at the end of the war, all their old problems returned. By carefully experimenting with the diet of these patients, the doctor discovered that eating wheat and rye caused the symptoms. Subsequent research has revealed that both contain a collection of proteins, referred to as gluten, which are the source of coeliac disease.
Belly disease
Coeliac disease (or celiac disease) is an old name which simply means ‘belly disease’. It is derived from the Greek word for’belly’ — koilia. Once the cause of the symptoms became understood, a new name was devised — gluten-sensitivity enteropathy — but it has not really caught on. Other terms that you may come across are non-tropical sprue and coeliac sprue, based on the close resemblance of the symptoms to those of tropical sprue. This disease, found in those who live or have lived in the tropics, is probably caused by bacterial infection. There is no causal link with coeliac disease.
Symptoms
The symptoms of coeliac disease are:
• diarrhoea, with pale, bad-smelling stools
• in a few patients, constipation rather than diarrhoea, but this is very rare
• bloating and wind
• damage to the lining of the intestine. This is of a characteristic type: the complex folded structures (the villi) of the intestinal lining are destroyed. Additionally, huge numbers of immune cells are present.
• the loss of the villi results in failure to absorb nutrients from food (malabsorption) causing poor growth in babies, and weakness and weight-loss in adults.
• poor appetite, especially in babies. This can greatly reduce the diarrhoea.
Coeliac disease usually appears in babies during weaning, a few weeks after cereals are introduced, but it can also begin for the first time in adults. The tendency to coeliac disease is genetically inherited, so it runs in families.
Where coeliac disease runs in the family, another disease, dermatitis herpetiformis, is also likely to occur. Dermatitis herpetiformis has the same basic mechanism as coeliac disease but very different symptoms:
• an intensely itchy rash, sometimes with tiny blisters; the rash is symmetrically distributed on the buttocks, shoulders, scalp, and the outer surfaces of the knees and elbows
• the same characteristic damage to the lining of the intestine as seen in tests for coeliac disease, though generally less severe
• diarrhoea, in some cases, but not all. About 5% of those with coeliac disease actually go on to develop dermatitis herpetiformis. Most people have either one or the other.
Both diseases are caused by the same gene, which results in sufferers developing antibodies against one of their own proteins, an enzyme called tissue-transglutaminase. The job of this enzyme, which is found in the intestines, is to assist with the breakdown of gluten.
If no gluten is present, the enzyme does not arouse the interest of the immune system. It is the process of gluten digestion, in which a particular peptide is produced from gluten, that provokes the autoimmune reaction. (A peptide is any short length of protein chain, obtained from the complete protein chain by digestion.)
What seems to trigger the autoimmune reaction is this enzyme–peptide combination: the offending peptide, newly produced and still attached physically to the enzyme. There is something about the particular ‘chemical picture’ that this combination makes which outrages the immune system of individuals with a particular genetic make-up.
The impact of this autoimmune reaction on the intestinal lining is severe in coeliac disease, less so in dermatitis herpetiformis. What causes dermatitis herpetiformis is a particular type of antibody, called dimeric IgA, which is transported by the bloodstream from the gut to the skin. It is deposited in the skin all over the body, but for some reason only provokes inflammation in certain areas.
In rare cases, an IgE-mediated food allergy to wheat can co-exist with coeliac disease, making reactions more severe.
Secondary problems
Paradoxically, while the damaged gut lining of untreated coeliac disease makes a poor job of absorbing specific nutrients (e.g. iron and vitamins) in a form that the body can use, it also lets through far more intact, or partially digested, food molecules. These get into the bloodstream in such numbers that they can lead to idiopathic food intolerance (see p.74). Sensitivity to soya is a common problem, because it is so heavily used in gluten-free bread and other prepared food. Those with coeliac disease who have not improved fully, despite a strict gluten-free diet, often benefit from an elimination diet (see p. 194). This must be done under medical supervision.
Another possible effect of the intestinal damage is lactose intolerance (see p.79), producing a sensitivity to milk.
The frequency of schizophrenia is higher among those with coeliac disease than among the general population. Coeliacs not following a strict gluten-free diet are also vulnerable to other psychological problems. These might be linked to the effects of food-derived exorphins (see pp. 76-7) and other peptides on the brain. The increased permeability of the gut could play a part in this, allowing more exorphins to reach the bloodstream.
Diagnosis
A biopsy (see p. 92) is the only really reliable form of diagnosis. It is crucial that this is done before removing gluten from the diet, because the damage is repaired if gluten is avoided and the healing process is fairly rapid for some people (though in others it takes many months). If the intestinal lining reverts to a normal appearance quite quickly, an accurate diagnosis is never obtained, which can have serious consequences: if you or your child are coeliac, you need to know.
New blood tests can also be helpful in diagnosis, but they do not give the unequivocal result obtained with a biopsy.
Research from the United States suggests that coeliac disease is under-diagnosed in some countries compared to others – for example, Italy screens children routinely but the States does not. Some authorities suspect that there is a great deal of ‘hidden’ coeliac disease in the States, and this could be true in other countries as well. There is no routine screening of children in Britain.
The symptoms of coeliac disease are not always distinctive. Many cases are first detected when patients with rather non-specific symptoms are discovered, by a blood test, to be anaemic.
Treatment
There are no drug treatments for coeliac disease and avoiding gluten religiously is the only way to remain well. Those who are lax about their gluten-free diet may be more vulnerable to certain cancers of the digestive tract.
A strict gluten-free diet is not easy to follow (see p. 177). The most severely affected coeliacs are so sensitive to gluten that they react violently to even a tiny amount: this is known as coeliac shock and can be fatal.
A gluten-free diet is also the treatment for dermatitis herpetiformis, but at the outset the rash can be controlled with the highly effective drug dapsone.
Tags: antibodies, antibody, bacterial infection, bloating, bloodstream, celiac disease, coeliac, coeliac disease symptoms, diagnosis, diarrhoea, DISEASES, effect, elimination diet, enteropathy, enzyme, fatigue, gluten, greek word, IgE, IgE-mediated, intolerance, muscle, non tropical sprue, peptide, protein, Reactions, skin, starvation diet, tulip bulbs
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Monday, May 18th, 2009
Candidal Spores of the Fungus, Candida Albicans.
`As a small child Jason was plagued with ear infections which led to many courses of antibiotics,’ Hannah Mitchell recalls. ‘Eventually he started to get symptoms such as an upset stomach, itchy bottom, flu-like symptoms and extremely itchy eyes. The GP prescribed eye drops and when I put them in Jason screamed his head off. In the morning every single eyelash had fallen out. Jason’s health deteriorated and a few months later his eyebrows started to itch. Within two days every single eyebrow hair had fallen out. His eyes were worse and I was offered steroid eye drops again. Reluctantly I accepted.’
‘Putting the drops in caused Jason extreme pain. The red patches of skin around his eyes spread and the itching increased. I was at the end of my tether when I came across a book in the library about food-related illness…
What Hannah discovered from her reading was that, for many with diarrhoea, bloating, wind and an itchy bottom, the cause can be an overgrowth of yeasts in the gut, caused in part by repeated courses of antibiotics which kill off friendly gut bacteria in the gut flora (see p. 204) and allow yeasts to flourish. This is not mainstream medicine, which is why none of the doctors who had seen Jason mentioned the possibility of yeast overgrowth.
Yeasts are microscopic fungi, so anti-fungal drugs are needed to kill them. However, reducing the intake of sugar in the diet is also very effective because yeasts living in the gut thrive on sugar. Hannah took matters into her own hands, and tried out a diet containing no sugar and no yeast. (The reason for avoiding yeast in food is discussed below.) There was some improvement and, encouraged, she went back to the doctor and asked for anti-fungal drugs.
The doctor agreed, and to Hannah’s immense relief, the combination of diet and drug treatment worked for Jason – it cleared the diarrhoea, wind and itching, and eventually allowed his eyelashes and eyebrows to grow back. (Note that few other patients with yeast problems suffer hair-loss – this is a very exotic symptom – but yeast overgrowth can produce some other quite unusual reactions.)
The elusive culprit
So far, you will notice, I have not mentioned Candida. Among those doctors who study and treat this condition, this particular yeast was once considered the prime suspect. Indeed, the disease itself was called ‘candidiasis’. But the role of Candida is now considered doubtful by many.
Researchers such as Dr John Hunter, of Addenbrooke’s Hospital in Cambridge, have tried to find Candida in their patients without success. ‘I think now we have to reject the idea of Candida causing the symptoms,’ says Dr Hunter. ‘But I do believe that there is an imbalance in the gut flora – the micro-organisms that live in the gut. I believe that’s at the root of so-called “candidiasis”.’ This new evidence has not yet affected beliefs about candidiasis’ and ‘Candida’ in the complementary health field.
The fact remains that anti-fungal drugs have proved very helpful to many patients with the typical cluster of symptoms –diarrhoea, wind, bloating and an itchy anus – that were previously attributed to Candida. Given the effectiveness of these drugs, it seems probable that yeasts of some kind are playing a large part in this condition. So the term ‘yeast overgrowth’ is being used, rather tentatively at the moment, as a label for this condition. The yeasts concerned have not, as yet, been identified.
The facts about Candida
This box is about Candida as understood by conventional medicine, rather than ‘Candida’ and ‘candidiasis’ as understood by alternative medicine.
The yeast known as Candida lives naturally in the gut, usually causing no trouble. Problems are usually caused by Candida only when it sets up home in the throat, vagina or penis (’thrush’ infections). Such localised infections have well-defined symptoms and, in most cases, are easily treated with anti-fungal drugs. Patients with damaged immune systems, caused by anti-cancer drugs or AIDS, often develop more widespread Candida infections, but this never happens to people with a normal immune system.
Inhaling steroids and not rinsing out the mouth afterwards can make asthma sufferers more susceptible to Candida infections in the throat (see p. 145).
Other symptoms that have been linked to yeast overgrowth are:
• fatigue
• poor concentration
• irritability, depression and confusion
• headache or migraine
• severe premenstrual problems
• recurrent cystitis
• skin rashes
• aching muscles
• chronic urticaria.
Sometimes there is constipation rather than diarrhoea. Recurrent thrush – a genuine Candida infection in the vagina – can also be a feature of this problem. Occasionally allergic symptoms such as asthma seem to get worse with yeast overgrowth.
Is there an allergic reaction to the yeast?
Those with symptoms typical of yeast overgrowth may give a positive skin-prick test to Candida, but what this means is debatable. For one thing, not everyone with this condition gives a positive test. For another, some entirely healthy people give a positive skin-prick test to Candida. To complicate matters, there are a lot of cross-reactions (see p. 14) between different kinds of yeasts and moulds, due to similarities in their chemical constituents. So the positive skin-prick test does not mean that Candida itself triggered the original IgE-response.
The question of whether some kind of sensitivity reaction to yeasts is occurring in those with yeast overgrowth, and contributing to their symptoms, is an interesting one. The benefits from avoiding yeast in food (see Diagnosis and treatment) suggest that it may be – but this is a question that cannot be answered at present.
Diagnosis and treatment
Unfortunately, this is one of those ’suck-it-and-see’ conditions, where diagnosis and treatment are the same – you try the treatment for yeast overgrowth, and if it works you assume that the disease is, or was, yeast overgrowth. This is far from satisfactory, but is the best that can be done at present.
It is only worth trying this treatment if you have quite a number of the symptoms listed. Bowel problems and an itchy anus are characteristic, and if you have neither of these it is unlikely the treatment will help you.
A key part of the treatment is a no-yeast-no-sugar diet (see p. 205). This diet has been developed on a largely pragmatic basis, and seems to work – but why? The rationale for cutting out sugar is clear – it feeds yeasts in the gut. But why avoiding foods containing yeast should help is uncertain. Possibly the yeasty food supplies some special nutrient that benefits the yeasts living in the gut. Alternatively, there might, for some people, be a sensitivity reaction to the yeast in food (see left).
If it seems that you are on the right track, because there is some improvement with this diet, ask your doctor for anti-fungal drugs. You should take these in addition to the diet. Nystatin (see box below) is very safe for most people, since it is not absorbed from the gut. Bacterial replacers (see p. 205) may also be useful.
You may need a referral to a doctor who is knowledgeable about yeast overgrowth but try to avoid those doctors and alternative therapists who are part of the ‘Candida’ craze, and think that ‘candidiasis’ explains a huge variety of illnesses. You may not have yeast overgrowth at all, so you need someone with an open mind.
Eczema and yeasts?
Doctors have found that some children whose eczema looks very red, and is not responding to treatment, have IgE in the blood against a range of yeasts and other fungi (Candida, Trichophyton, Saccharomyces and Pityrosporum). Given the tendency to cross-reactions among fungi (see main text) it is not clear exactly what these reactions indicate. A proportion of these children get much better on anti-fungal drugs, including a drug called nystatin, which is not absorbed through the gut wall – so cannot reach the skin. The eczema improves, and at the same time there is a fall in levels of anti-fungal IgE in the blood. In other words, a treatment that can only affect fungi living in the gut benefits the skin. Exactly what is going on here is unknown, but the important point is that the treatment seems to work. This is a controversial topic, but since nystatin is an extremely safe drug, your doctor may be prepared to try it out. A course of 3-4 weeks is the minimum needed.
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