Posts Tagged ‘nausea’

Generic Name
Clemastine (KLEH-mas-tene) A
Brand Names
DayHist-1    Tavist-1
Tavist    Tavist Allergy
Combination Pr(3dUtj
Generic Ingredients: Acetaminophen + Clemastine + Pseudoephedrine
Tavist Allergy/Sinus/Headache
Type of Drug  Antihistamine.
Prescribed For
Sneezing, stuffy and runny nose, itchy eyes, and scratchy throat caused by seasonal allergies and for other symptoms of allergies such as rash, itching, and hives.
General Information
Antihistamines generally work by blocking the release of naturally occuring histamine (a chemical released by body tissue during an allergic reaction) from cells at the H, histamine receptor site, drying up secretions of the nose, throat, and eyes. Clemastine fumarate is less sedating than most antihistamines, but not less sedating than astemizole, cetirizine, or loratadine.
Cautions and Warnings
Clemastine should not be taken if you are allergic or sensitive to any of its ingredients.
People with asthma or other deep-breathing problems, heart disease, high blood pressure, diabetes, enlarged prostate, glaucoma, stomach ulcers or other stomach problems, and hyperthyroidism should use clemastine with caution because its side effects can aggravate these problems.
Possible Side Effects
✓    Most common: drowsiness; headache; weakness; nervousness; stomach upset; nausea; vomiting; cough; stuffy nose; diarrhea; constipation; sore throat; nosebleeds; and dry mouth, nose, or throat.
✓    Less common: allergic reaction (symptoms include rash, itching, hives, and breathing difficulties), sleeplessness, menstrual irregularities, muscle aches, sweating, tingling in the hands or feet, frequent urination, visual disturbances, and ringing or buzzing in the ears.
Drug Interactions
•    Cbrnbining clemastine with alcohol, sedatives, sleeping pills, or other nervous system depressants may increase the depressant effects of clemastine. Do not combine these drugs.
•    The effects of oral anticoagulant (blood-thinning) drugs may be decreased by clemastine. Do not take this combination without your doctor’s knowledge.
Monoamine oxidase inhibitor antidepressants may increase the drying and other effects of clemastine. This combination can also worsen urinary difficulties.
e When taking antihistamines on a regular basis, notify your doctor if you are taking large amounts of aspirin. Effects of too much aspirin may be masked by the antihistamine.
Food Interactions
Clemastine is best taken on an empty stomach at least 1 hour before or 2 hours after eating; it may be taken with food if it upsets your stomach.
Usual Dose
Adult and Child (age 12 and over): 1.34 mg twice a day up to 8.04 mg of the syrup or 2.68 mg of the tablets in 24 hours.
Child (age 6-12) (syrup only): 0.67 mg twice a day or up to 4.02 mg a day.
Overdosage
Overdose is likely to cause severe side effects. Overdose victims should be given ipecac syrup—available at any pharmacy—to induce vomiting and should then be taken to a hospital emergency room for treatment. ALWAYS bring the prescription bottle or container.
Special Information
Clemastine may make it difficult for you to concentrate or perform complex tasks such as driving a car. Be sure to report any unusual side effects to your doctor
Antihistamines may occasionally produce excitability, particularly in children.
If you forget to take a dose of clemastine, 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.
Special Populations
PregnancylBreast-feedj(IV. DO not take any antihistamines without WU ‘Obtlor’s knowledge if you are or might be pregnant—especially during the last 3 months of pregnancy, because newborns may have severe reactions to antihistamines.
Small amounts of clemastine pass into breast milk. Nursing mothers who must take clemastine should use infant formula.
Seniors: Seniors are more sensitive to side effects.

Generic Name
Clindamycin (klin-duh-MYE-sin)
Brand Names
Cleocin    Clindesse
Cleocin T    Clindets
Clinda-Derm    Evoclin Clindagel
Type of Drug  Antibiotic.
Prescribed For
Serious bacterial infections. The vaginal cream is used to treat bacterial vaginosis. Topical clindamycin is used to treat acne and rosacea.
General Information
Clindamycin is one of the few oral drugs that is effective against anaerobic bacteria, which grow only in the absence of oxygen and are often found in infected wounds, lung abscesses, abdominal infections, and infections of the female genital tract. It also works against bacteria usually treated with penicillin or erythromycin, including serious respiratory tract infections. Clindamycin may be useful for treating certain skin or soft tissue infections. It kills the bacteria that frequently cause acne.
Clindamycin is not used to treat vaginal fungus or yeast infections.
Cautions and Warnings
Do not take clindamycin if you are allergic or sensitive to any of its ingredients or to lincomycin, another antibiotic.
People with asthma or a history of allergies should use clindamycin capsules with caution.
Clindamycin can cause a severe intestina(kmkation called colitis, which can be fatal. Signs of colitis are diarrhea, blood in the Stool, and abdominal cramps. Any form of this drug, including products applied to the skin and the vaginal cream, can provoke colitis. Because of this, clindamycin should be reserved for serious infections or those that cannot be treated with other drugs.
Clindamycin should be used with caution if you have gastrointestinal disease or kidney or liver disease.
Possible Side Effects
Capsules
✓    Most common: stomach pain; nausea-, vomiting-, diarrhea,
in up to 20% of people; and pain when swallowing.
♦    Less common: itching; rash; signs of serious drug sensitivity, such as difficulties breathing and yellowing of the skin or the whites of the eyes; colitis, (see “Cautions and Warnings”); effects on blood components; and joint pain.
Topical Lotion
♦    Most common: dry skin, redness, burning, peeling, oily skin, and itching.
♦    Less common: diarrhea, abdominal pain, upset stomach, and colitis (see “Cautions and Warnings”).
Vaginal Cream
♦    Most common: vaginal itching or irritation; thick, white vaginal discharge; and pain during intercourse.
♦    Less common: nausea, vomiting, diarrhea, constipation, abdominal pain, dizziness, headache, vertigo, and colitis (see “Cautions and Warnings”).
Drug Interactions
•    Do not combine clindamycin and erythromycin.
•    The absorption of clindamycin capsules into the bloodstream is delayed by Kaolin-Pectin Suspension (prescribed for diarrhea). Separate these drugs by at least 1 hour.
•    clindamycin should be used with caution by people also using neuromuscular agents.
Food Interactions
Take the oral medication with a full glass of water or with food to prevent irritation of the stomach and intestine.
Usual Dose
Capsules
MUIV ) 50-450 mg every 6 hours.
Child (under age 16): 3.5-11 mg per lb. of body weight a day, in 3-4 doses. For severe infections, at least 37.5 mg 3 times a day, regardless of weight.
Foam: Dispense enough to cover the affected area(s) onto a cool surface (the foam will melt on contact with warm skin). Use fin-gertips to massage small amounts into the affected area(s) until the foam disappears.
Suppositories: Insert 1 suppository a day for 3 consecutive days.
Topical Lotion: Wash the skin and pat dry before application. Apply enough to cover the affected area(s) with a thin coat twice a day.
Vaginal Cream: Insert 1 applicator’s worth at bedtime for 7 consecutive days, except for Clindesse, which requires one applicator’s worth once at any time of day.
Overdosage
clindamycin overdose may lead to severe diarrhea and other drug side effects. Do not treat this diarrhea on your own. Discontinue use of this drug and call your local poison center for information. If you go to an emergency room for treatment, ALWAYS bring the prescription bottle or container.
Special Information
Prolonged or unsupervised use of clindamycin may lead to secondary infections from susceptible organisms. such as fungi. Take this drug for the full course of therapy as indicated by your physician.
If you develop severe diarrhea or abdominal pain, call your doctor at once. Call your doctor immediately if you experience breathing difficulties or jaundice (yellowing of the skin or whites of the eyes).
Women using the vaginal cream should not have vaginal intercourse or use other vaginal products such as tampons or douches until treatment is complete.
Use of latex condoms or diaphragms within 72 hours following treatment with the vaginal creams or suppositories is not recommended. These products may decrease the efficacy of condoms or diaphragms.
The topical lotion is for external use only. Avoid contact with your eyes or mucous membranes.
If you miss a dose of oral clindamycin, take it as soon as you rememlae~. SSW19 almost time for your next dose of clindamycin, double that dose and go back to your regular dosage schedule.
Special Populations
Pregnancy/Breast-feeding: This drug crosses into fetal blood circulation. When the drug is considered crucial by your doctor, its potential benefits must be carefully weighed against its risks.
clindamycin passes into breast milk. Nursing mothers who must take oral clindamycin should use infant formula.
Seniors: Seniors with other illnesses may be unable to tolerate diarrhea and other clindamycin side effects.

Generic Name
Clonazepam (klon-A-zeh-pam)
Brand Name  Klonopin
Type of Drug  Anticonvulsant.
Prescribed For
Petit mal and other seizures and panic attacks; also prescribed for periodic leg movements during sleep, speaking difficulty associated with Parkinson’s disease, acute manic episodes, nerve pain, and schizophrenia.
General Information
Clonazepam is a benzodiazepine drug. Clonazepam is not used as a sedative or hypnotic. It is used only for the uses described above in people who have not responded to other drug treatments. Tolerance to the effects of clonazepam commonly develops within about 3 months of use. Your doctor may raise your clonazepam dosage periodically to maintain the drug’s effect.
Cautions and Warnings
Do not take clonazepam if you are allergic or sensitive to any of its ingredients or any other benzodiazepine.
When stopping clonazepam treatments, the drug must be discontinued gradually. Abrupt discontinuance of clonazepam may lead to drug withdrawal symptoms including severe seizures, tremors, abdominal or muscle cramps, vomiting, whet increased sweating.
IJSIF,l OfMazeparn with caution if you have a chronic respiratory illness, since the drug tends to increase salivation and other respiratory secretions and can make breathing more labored.
Avoid using clonazepam if you have severe depression, severe lung disease, sleep apnea (intermittent cessation of breathing during sleep), liver disease, alcoholism, or kidney disease. These conditions may exacerbate the depressive effects of benzodiazepines, and such effects may be detrimental to your overall
condition.
Clonazepam can aggravate narrow-angle glaucoma, but if you have open-angle glaucoma, you may take it.
Possible Side Effects
♦    Most common: drowsiness, poor muscle control, and behavioral changes.
✓    Rare: Rare side effects can occur in almost any part of the body but are most likely to affect mental function, stomach and intestines, urinary function, blood, and liver. Contact your doctor if you experience any side effect not listed above.
Drug Interactions
•    The depressant effects of clonazepam are increased by sedatives, sleeping pills, narcotic pain relievers, antihistamines, alcohol, monoamine oxidase inhibitor antidepressants, tricyclic antidepressants, and other anticonvulsants.
•    Mixing valproic acid and clonazepam may produce severe petit mal seizures.
•    Smoking, phenobarbital, phenytoin, carbamazapine, and rifampin may reduce clonazepam’s effectiveness.
•    Clonazepam may increase the requirement for other anticonvulsant drugs in people who suffer from multiple types of seizures.
•    The effects of clonazepam may be prolonged when it is taken with cimetidine, contraceptive drugs, disulfiram, fluvoxamine, isoniazid, oral antifungal medications (e.g. ketoconazole), metoprolol, probenecid, propoxyphene, or propranolol.
•    Theophylline may reduce clonazepam’s sedative effects.
•    Separate antacids from y<3kwc_%1Dnazepam dose by at least 1 bZldi %prevent them from interfering with clonazepam being absorbed into the bloodstream.
•    Clonazepam may increase blood levels of digoxin and the risk of digoxin toxicity.
•    Clonazepam may decrease the effect of levodopa + carbidopa.
Food Interactions
Clonazepam is best taken on an empty stomach but may be taken with food if it upsets your stomach.
Usual Dose
Clonazepam is available in either tablets or orally disintegrating tablets, called wafers. Wafers should not be opened until immediately before the dose is to be taken. Do not push the wafer through the foil. Use dry hands to remove the wafer. The wafer will disintegrate quickly in saliva.
Seizures
Adult and Child (age 10 and over): starting dose    0.5 mg 3 times a day. The dose is increased by 0.5-1 mg every 3 days until seizures are controlled or side effects develop. The maximum daily dose is 20 mg.
Panic attacks
Adult and Child (age 10 and over): starting dose-0.25 mg twice daily. The dose is increased to 1 mg a day after 3 days. Most people do not require a higher dose.
Child (under age 10 or below 66 Ms.): starting dose-0.0220.066 mg per lb. of body weight a day in divided doses. Dosage can be increased gradually to a daily dose of 0.22-0.44 mg per lb. of body weight.
Other uses for clonazepam involve doses from 0.5-16 mg a day, depending on the condition and its severity. Clonazepam dosage must be reduced in people with impaired kidney function.
Overdosage
Overdose may cause confusion, coma, poor reflexes, sleepiness, low blood pressure, labored breathing, and other depressive effects. If the overdose is discovered within a few minutes and the victim is still conscious, it may be helpful to induce vomiting with ipecac syrup—available at any pharmacy. Overdose victims must be taken to a hospital emergency room. ALWAYS bring the prescription bottle or contai”iaT.
Special Information
Clonazepam may interfere with your ability to drive or perform other complex tasks because it can cause drowsiness and difficulty in concentrating.
Your doctor should perform periodic blood counts and liver function tests while you are taking this drug to check for possible
side effects.
Do not suddenly stop taking clonazepam—severe seizures may result. The dosage must be discontinued gradually by your doctor.
If you miss a dose by 1 hour or less, take it right away. Otherwise, skip the dose you forgot and go back to your regular schedule. Do not take a double dose.
Carry identification or wear a bracelet indicating that you have a seizure disorder for which you take clonazepam.
Special Populations
Pregnancy/Breast-feeding: Clonazepam crosses into the fetal circulation and can affect the fetus. Women who are or might be pregnant should avoid it. When the drug is considered crucial by your doctor, its potential benefits must be carefully weighed against its risks.
Some reports suggest a strong link between anticonvulsant drugs and birth defects, though most of the information pertains to phenytoin and phenobarbital, not clonazepam. It is also possible that the epileptic condition itself or genetic factors common to people with seizure disorders may figure in the higher incidence of birth defects.
Clonazepam may pass into breast milk. Nursing mothers who must take this drug should use infant formula.
Seniors: Seniors, especially those with liver or kidney disease, are more sensitive to the effects of this drug—especially dizziness and drowsiness—and may require smaller doses.

Type of Drug
Carbonic-Anhydrase Inhibitors,
Eyedrops (kar-BON-ik an-HYE-drase)
Brand Names
Generic Ingredient: Dorzolamide Trusopt
Generic Ingredient: Brinzolamide Azopt
Combination Product
Generic Ingredients: Dorzolamide + Timolol Cosopt
Prescribed For  Glaucoma.
General Information
These drugs are similar to acetazolamide, a carbonic-anhydrase inhibitor taken by mouth. Carbonic anhydrase is an enzyme found in many parts of the body, including the eyes. By blocking the effects of this enzyme, dorzolamide and brinzolamide slow the production of fluid inside the eye, reducing pit:ssure. This cffc,, i3 usetul in ir83t
ino, open-angle glaucoma because the disease is characterized by elevated eye pressure. Dorzolamide and brinzolamide are sulfonamides, or sulfa drugs, and although they are administered topically, they affect the body systemically.
Cautions and Warnings
Do not use these drugs if you are allergic or sensitive to any of their ingredients or to other sulfa drugs. Small amounts of these drugs enter the bloodstream. Rarely, people using them experience side effects or allergies associated with sulfa drugs.
These drugs have not been studied in people with very poor kidney or liver function. Since these drugs are eliminated via the kidneys, people with impaired kidney function should use an alternate glaucoma medication.
These drugs have not been studied in people with acute angle-closure glaucoma.
See Timolol, page 1129, for more information on the combination product Cosopt.
Possible Side Effects
Dorzolamide
✓    Most common: eye burning, stinging, or discomfort and a bitter taste in the mouth immediately after administering the eyedrops.
✓    Less common: allergic reactions, conjunctivitis (pinkeye), blurred vision, tearing, dry eye, and increased sensitivity to bright light.
♦    Rare: headache, nausea, weakness, tiredness, rash, and kidney stones. Dorzolamide can cause the same types of side effects as other sulfa drugs, but this is very unlikely. Contact your doctor if you experience any side effects not listed above.
Brinzolamide
♦    Common: blurred vision and a bitter, sour, or unusual taste in the mouth.
♦    Less common: eyelid inflammation; conjunctivitis (pink-
eyeY, nsh; dry eye; sensation of something in the eye;
headache; eye redness, itching, discharge, or pain; and
runny nose.
✓    Rare: allergic reactions, hair loss, chest pain, diarrhea, nausea, sore throat, tearing, itchy rash, double vision, dizziness, Possible Side Effects (continued)
dry mouth, breathing difficulties, upset stomach, tired eyes, kidney pain, cornea problems, and formation of a crust or sticky sensation around the eyelid. Brinzolamide can cause the same types of side effects as other sulfa drugs, but this is very unlikely. Contact your doctor if you experience any side effect not listed above.
Drug Interactions
• If you are using more than 1 eyedrop product, separate doses of these drugs by at least 10 minutes.
Usual Dose
Adult: 1 drop in the affected eye 3 times a day. Overdosage
Accidental ingestion of a bottle of dorzolamide or brinzolamide may affect blood levels of potassium and other electrolytes. The victim should be taken to a hospital emergency room. ALWAYS bring the prescription bottle or container.
Special Information
Call your doctor and stop using your eyedrops if you develop any unusual eye reaction or condition, including swollen eyelids and conjunctivitis (pinkeye).
Vision may be temporarily blurred when using the eyedrops. Use caution when driving or operating machinery.
If you wear soft contact lenses, take them out before using the eyedrops and put them back in 15 minutes after a dose.
To prevent infection, do not allow the eyedropper tip to touch your fingers, eyelids, or any surface. Wait at least 10 minutes before using any other eyedrops.
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 one you forgot and continue with your regular schedule. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: Very high dosages of dorzolamide or brinzolamide caused birth defects in animal studies. While the risks of using these drugs during pregnancy are small in people, pregnant women should use dorzolamide or brinzolamide only after discussing its potential benefits and risks with their doctors.
it is not known if these drugs pass into breast milk. Nursing mothers who must use either drug should use infant formula.
Seniors: Seniors may be more sensitive to side effects.

Generic Name
Buspirone (bue-SPYE-rove) OG
Brand Name  BuSpar
Type of Drug
Minor sedative and antianxiety drug.
Prescribed For
Anxiety and generalized anxiety disorders; also prescribed for the aches, pains, fatigue, and cramps of premenstrual syndrome (pMS).
General Information
Buspirone hydrochloride has a potent antianxiety effect. It is approved by the Food and Drug Administration (FDA) for short-term relief of anxiety, but it may apparently be used safely for more than 4 weeks. The exact way in which buspirone works is not known, but it seems to lack the addiction dangers associated with other antianxiety drugs, including benzodiazepines. It neither severely depresses the nervous system nor acts as an anticonvulsant or muscle relaxant, as other antianxiety drugs do. Minor improvement will be apparent after only 7-10 days of drug treatment, but the maximum effect does not occur for 3 or 4 weeks.
Cautions and Warnings
Do not take buspirone if you are allergic or sensitive to any of its ingredients.
Buspirone should be used cautiously by people with timer or kidney disease.
Buspirone does not have any antipsychotic effect and should not be taken for symptoms of psychosis.
Although buspirone has not shown a potential for drug abuse, you should be aware of this possibility.
Buspirone should not be used with monamine oxidase inhibitor (MAGI) antidepressants.
Possible Side Effects
♦    Most common: dizziness, drowsiness, nausea, and head-
ache.
•    Common: fatigue, nervousness, lightheadedness, excite-
ment, dry mouth, and insomnia.
•    Less common: heart palpitations, muscle aches and pains, tremors, rash, sweating, clamminess, rapid heartbeat, dif-
ficulty concentrating, anger or hostility, depression, loss of interest, diarrhea, constipation, vomiting, and blurred vision.
♦    Rare: 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
•    Combining buspirone with an MAGI antidepressant may produce severe hypertension and may be dangerous.
•    The effects of combining buspirone with other drugs that work in the central nervous system (CNS) are not known. Do not take other sedatives or antianxiety or psychoactive drugs with buspirone unless prescribed by a doctor familiar with your complete medical history.
•    Erythromycin, itraconazole, ketoconazole, clarithromycin, diltiazem, verapamil, fluvoxamine, and ritonavir may increase blood levels of buspirone. When used in combination, your buspirone dosage may need to be adjusted.
•    Buspirone may increase the side effects of haloperidol and diazepam.
•    Studies show that buspirone is not affected by alcohol, but this combination should still be used with caution because buspirone causes drowsiness and dizziness.
•    The combination of buspirone and trazodone may cause liver inflammation.
•    Combining rifampin with buspirone may decrease buspirone’s effectj\18″eSS.
Food Interactions
This drug may be taken either with or without food, but for the most consistent results, always take your dose at the same time of day in the same way—that is, with or without food. Avoid drinking large amounts of grapefruit juice with this drug.
Usual Dose
Adult: starting dosage-7.5 mg twice a day. Dosage may be increased gradually to 60 mg a day.
Overdosage
Symptoms of overdose are nausea, vomiting, dizziness, drowsiness, pinpointed pupils, and upset stomach. The overdose victim should be taken to a hospital emergency room. ALWAYS bring the prescription bottle or container.
Special Information
Buspirone may cause CNS depression, drowsiness, and dizziness. Be careful while driving or operating hazardous equipment. Avoid other CNS drugs and alcoholic beverages because they will enhance buspirone’s effects.
Contact your doctor if you become restless, develop uncontrolled or repeated movements of the head, face, or neck, or have any intolerable side effects.
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 go back to your regular schedule. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: Though buspirone has not been found to cause birth defects, be sure to inform your doctor if you are or might be pregnant while taking this drug. When this drug is considered crucial by your doctor, its potential benefits must be carefully weighed against its risks.
It is not known how much buspirone passes into breast milk. Nursing mothers who must take this drug should use infant formula.
Seniors: Several hundred seniors participated in drug evaluation studies without any unusual problems. However, the effect of this drug in seniors is not well known, and special problems may surface, particularly in those with kidney or liver disease.

Bosentan
Type of Drug     Endothelia receptor antagonist.
Prescribed For
Pulmonary arterial hypertension.
General Information
These drugs lower blood pressure by working on the endothelin system. Endothelia is a hormone that plays an important role in maintaining blood pressure. It is normally found in blood vessels, but endothelin levels are very high in the blood and lungs of people with pulmonary arterial hypertension. People with this condition have high blood pressure, trouble breathing, and get very tired even when walking or doing other moderate exercising. Pulmonary arterial hypertension can be fatal.
Cautions and Warnings
These drugs should not be used by those who are allergic or sensitive to any of their ingredients.
Bosentan can cause liver injury. People taking these drugs should have their liver enzymes checked monthly. Enzyme increases can be a sign of liver injury and may be a reason to stop taking bosentan.
These drugs are broken down in the liver. People with liver damage should take them with caution.
These drugs should not be taken during pregnancy as they are likely to cause birth defects (see “Special Populations”).
These drugs cause a reduction in red blood cells, leading to anemia. Larger doses of bosentan cause a greater loss of red blood cells.
Possible Side Effects
Ambrisentan
Most side effects are mild. Only stuffy nose increases with increased dosage.
V Most common: swelling k%) -aims or legs, stuffy nose, si1)u6fis, flushing, heart palpitations, abdominal pain, constipation, difficulty breathing, and headache.
Bosentan
♦ Most common: headache and sore throat and nose.
Drug Interactions
•    It is possible that bosentan may cause failure of hormonal contraceptives.
•    Cyclosporine, used to prevent transplant rejection, increases blood levels of bosentan and ambrisentan. Do not combine these drugs.
•    Mixing glyburide, an antidiabetes drug, with bosentan increases the risk of elevated liver enzyme levels. Do not combine these drugs.
•    Ketoconazole greatly increases blood levels of bosentan by slowing its breakdown in the liver.
•    Combining bosentan with a statin-type cholesterol - lowering drug such as simvastatin, lovastatin, or atorvastatin reduces the amount of statin drug in the blood. Dose increases may be needed.
•    Bosentan can reduce the amount of warfarin in the blood by
about 1/3. Changes in warfarin dosage may be needed.
•    Combining ambrisentan with atanazavir, clarithromycin, indinavir, itraconazole, ketoconazole, nelfinavir, ritonavir, omeprazole, saquinavir,or telithromycin may increase the amount of ambrisentan in the blood. Caution is advised.
•    Combining ambrisentan with rifampin may reduce the
amount of ambrisentan in the blood. Caution is advised.
Food Interactions
These drugs may be taken with or without food.
U’Suk Dose
Ambrisentan
Adult (age 18 and over): 5-10 mg once a day. Do not crush, split, or chew these tablets.
Child: not recommended.
Possible Side Effects (continued)
♦    Common: flushing, abnormal liver blood pressure, and heart
♦    Less common: upset stomach, tiredness.
ver function, leg swelling, palpitations.
, swelling, itching, anemia,
Bosentan
Adult (age 18 and over): 62.5 mg twice a day for 4 weeks, then
125 mg twice a day.
Child: not recommended.
Overdosage
Massive overdose may result in severe lowering of blood pressure, requiring emergency attention. The most common effects associated with overdosage are headache, low blood pressure, increased heart rate, and nausea and vomiting. Overdose victims should be taken to a hospital emergency room for treatment. ALWAYS bring the prescription bottle or container.
Special Information
Do not stop taking these drugs without gradually reducing the dosage as instructed by your doctor.
If you forget to take 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. Do not take a double dose.
Contact your doctor at once if you develop severe itching, yellowing of the skin or eyes, tiredness, swelling in the arms or legs, nausea, vomiting, fever, or abdominal pain.
Doctors must enroll in special restricted distribution programs before they can prescribe these medicines, because of the risks of liver injury and birth defects associated with them. These medicines are not available in regular pharmacies but are mailed to you from a central pharmacy only after the testing and other program requirements have been met by your doctor.
Special Populations
Pregnancy/Breast-feeding: These medicines are very likely to cause major birth defects and should not be taken by pregnant women. Women must be sure they are not pregnant before beginning these treatments.
Women should also use non-hormone contraceptives while on these drugs. Hormone-based contraceptives such as birth control pills, injections, and implants may not work in women taking Wst m or ambrisentan.
It is not known if either of these medicines passes into breast milk. Nursing mothers should use infant formula.
Seniors: The greater chance of kidney, liver, and cardiac function side effects in seniors may affect drug dosage. Seniors may also experience more swelling in the arms or legs.

HEADACHES AND MIGRAINES
• Take aspirin or acetaminophen for an occasional tension headache
• Don’t overuse headache medication
• Consult a doctor if headaches are frequent or severe
• Experiment with riboflavin or feverfew for natural migraine prevention
• Try acupuncture treatments to reduce migraine frequency
• Treat a migraine as early as possible
• Use Excedrin Migraine for mild migraines ****
• Ask your doctor about a W Aan for more severe
• Discuss topiramate (Topamax) with your MD if you suffer frequent migraines
• Prevent menstrual migraines with NSAIDs
• Prevent sex headaches with NSAIDs
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An occasional mild headache does not usually pose a serious problem prilosec and bone loss . But a more severe headache, even if it occurs only once in a while, or a chronic headache, even if it is not extremely painful, deserves medical evaluation terazosin cns distribution . Popping a couple of aspirin or acetaminophen pills just isn’t a good idea when the headache occurs several times a week prevacid gastroesophageal reflux diease . In fact, Dr maxalt and high blood pressure . Saper says that using such over-the-counter (OTC) analgesics too frequently can actually cause the headaches you’re trying to treat who makes cytoxan . It takes an experienced headache doctor to help someone out of such a vicious cycle imuran and pancytopenia .
I have suffered from headaches all my life zovirax solution dosing information . For the past 30 years, I’ve taken from 25 to 35 aspirins daily, in addition to sinus medication creative and lithium batteries . My doctor doesn’t know about these large doses, but regular checkups reveal no damage to my liver or kidneys levothyroxine at night .
The trouble is that many physicians are not aware of how serious this problem can be dissolving penicillin powder . John Edmeads, MD, editorializing in the journal Headache, noted that “the daily use (or, more accurately, abuse) of analgesics actually worsened and perpetuated headaches,” He bemoaned the fact that so few physicians “know that chronic analgesic abuse causes chronic headaches natural viagra alternative review .”328
The diagnostic dilemma for doctors is that they must distinguish between headaches brought on by overuse of pain relievers, headaches caused by some other medical condition, and headaches caused by a change in brain chemistry buy wellbutrin 300 xl . If the headache is a consequence of an underlying condition like the flu, it will go away when the infection runs its course equate gas relief with infant motrin . Celiac disease is one condition that can cause recurrent headaches, among many other symptoms, although the underlying issue is actually a reaction to gluten in the small intestine side effects from ramipril tablets .The treatment is to avoid any foods that contain gluten (wheat, barley, and rye) prednisone and lysodren for do .
I suffered from migraine headaches for more than 10 years topamax side eftects . I saw several neurologists, but my intense headaches forced me to take early retirement viagra chemist nottingham .
In the fall 02002, 1 went from three headaches a week to almost nonstop compare prices nexium . That November, I had only 3 days without headaches fun facts about lithium . I took migraine meds like Frova, Maxalt, and Imitrex, but I mostly lay in bed in a dark room my doctor prescribed .3 premarin .
I was at my wit’s end fsh estradiol fertility . Then illy family doctor suggested a gluten-free diet viagra in india by mail order . Gradually my headaches became less frequent and after several months I was 98 percent headache-free buy famvir . I feel I have been given a new life!
Caffeine Withdrawal Headache
By now, many people recognize that daily use of caffeine can lead to a dependence on it zoloft stuffed animal . Stopping the caffeine—for example, by not drinking coffee on the weekends—can lead to a caffeine withdrawal headache, accompanied by irritability and fatigue plavix and diclofenac sodium contraindications . Probably the best way to deal with this type of headache in the short term is to get a little caffeine buy 200 mg generic lamotrigine . In the longer term, though, a more gradual withdrawal from coffee, soda, or caffeine-containing medications will allow a person to drop the use of the drug without the wicked headache hydrochlorothiazide and libido .
Q lamictal and weekness . 1 am a healthy person and rarely take any medicine loow priced nexium . I quit smoking 14 months ago and am trying to stop drinking coffee lithium polymer battery hyperion . Lately I’ve had trouble with fatigue and on headaches in the afternoon sarafem directons on usage . If I take Extra Strength Excedrin with a Coke on my break, the headache goes away like magic brethine licensing . Regular aspirin doesn’t work as well using hibiclens while on accutane . Why is Excedrin more effective?
A actos sales 2005 . Each Extra Strength Excedrin contains aspirin (250 mg), acetaminophen (250 mg), and 65 mg of caffeine lotrel drug interactions . That means that a standard two-caplet dose will pro-vide you with 130 mg of caffeine what is element lithium used for . Together with your cola, this probably provides as much caffeine as two mugs of coffee dangerous testosterone supplements .
It is conceivable that your afternoon slump and headaches are due to caffeine withdrawal finasteride 2 . People who customarily drink as little as 21/2 cups of coffee can experience symptoms such as lethargy, headache, and anxiety when they stop jaw necrosis actonel .
By taking a pain reliever that contains caffeine, you could be easing your withdrawal college pharmacy sublingual testosterone . An alternate solution is to try to reduce your caffeine intake gradually until you are completely weaned symptoms of prednisone overdose .
Tension Headache
Experts used to pigeonhole headaches into separate categories: tension headache, sinus headache, migraine, and so forth 18 takes viagra . While some categories may be useful, the separations between them have blurred should procardia be taken with food . Trying to tell a tension headache from a migraine is not for amateurs trileptal medication .
Although tension headaches are said to be far more common than migraines, much of the research lately has focused on migraine prevention and treatment oily skin returned accutane . How should you handle recurrent tension headaches, then?
As long as the headache does not occur more often than once a week, there is no problem with using the regular OTC headache pills or powders fsh levels decrease taking clomid .These may contain aspirin, acetaminophen, or a nonsteroidal anti-inflammatory drug (NSAID), usually ibuprofen took motrin while pregnant . All of these have been shown to ease headache pain minoxidil vs propecia . For this type of occasional use, the only reason to prefer one instead of another is based on your own experience of pain relief testimonials of zithromax healing polymyositis . If aspirin doesn’t seem to help but Tylenol does, go with the acetaminophen—and vice versa serum depakote level lab test .
Adding caffeine to the analgesic may help it work better side effects of soma . You can buy a pill that already contains caffeine, or you could take your aspirin, acetaminophen, or ibuprofen with iced tea or a cup of coffee what happens if you snort amitriptyline .
Readers have suggested a few unique approaches that might be worth consideration, though we don’t have any good evidence that they work blurred vision cymbalta . They are, at least, inexpensive and low risk and will not perpetuate headache even if someone gets carried away and uses them too often interpret ir spectra of caffeine .
People have tried applying a dab of peppermint oil to the forehead cheap depakote . Others have put Vicks VapoRub on their temples diovan hair loss . Using Vicks for a headache is strictly an “off label” use, just like so many of the other creative uses people have invented for VapoRub increasing amoxicillin dosage during . It contains menthol as one of its ingredients-, peppermint oil also contains menthol pseudoephedrine overdose symptoms . We’re not aware that menthol has special properties to help ease headaches, but it has been shown to alleviate the pain of sore muscles tadalafil generic . Perhaps it is doing something similar fora tension headache cialis western open .
I have enjoyed your columns about Vicks VapoRub fora variety of uses diflucan prescription without . Here’s one you may not have heard before clindamycin diarreah . A friend had a headache that would not go away testosterone levels in childhood . I told her to rub a dab of Vicks on her forehead prochlorperazine for migraines . She thought I was nuts, but it worked effexor success . She has been using it ever since cialis tadalafil tablets .
Some headache specialists have used relaxation training for people who suffer from chronic or recurrent headaches cymbalta use with bipolar disorder . This can help individuals who are willing to practice the technique, including teenagers who have frequent headaches at school singulair patent expiration .121
One very important point for people who suffer frequent Aspirin
Plain old generic aspirin, 650 milligrams (two tablets), will ease the pain of an occasional tension headache in most cases quitting seroquel . The danger is if the headache becomes more frequent crushed ibuprofen . Aspirin overuse increases the possibility of stomach irritation or ulcers and can also be associated with “rebound headache ibuprofen and miscarriage .” Regularly using aspirin (or acetaminophen) at least 2 days B week may increase the risk that the headache will become chronic because of the medication prozac works grat .
Side effects: Digestive tract upset, including ulcers Downside: People who are allergic to aspirin must avoid it completely itraconazole estrogenic effects .
Cost: Inexpensive, about 5 cents a dose aygestin in uterine bleeding . More if you buy a brand name misoprostol monograph .
headaches of any sort: Overusing pain relievers can actually cause chronic headache d nolvadex . This is a very difficult problem to handle alone, so a person who is using painkillers for a headache more than 2 days a week on a regular basis should get help from a headache specialist wellbutrin for adult adhd add .
Migraine Headache
Experts estimate that 28 million to 30 million Americans suffer from migraines pentoxifylline description .330 Many more migraine sufferers are women than men evista and cervical cancer . As we have pointed out, trying to distinguish between a migraine headache and some other cause of head pain is generally a job for an expert risperdal herb interactions . Usually, though, if the headache is accompanied by exceptional sensitivity to light or noise or by nausea, or if it is preceded by an aura of flashing lights or blind spots, a person should be evaluated for migraine effexor and monopoly . Other tip-offs might be pain on just one side of the head or pain that throbs, especially when you move soma holiday cd greenwheel .
We tend to think of migraines as crushingly painful can lasix hurt you . That’s not always the case response to accutane . But if it is a migraine, there are ways to treat it that should help get the pain under control, whether it is simply annoying or completely incapacitating cheap fluoxetine online order fluoxetine now .
Q tylenol and motrin interaction . 1 am 20 years old and have suffered with severe headaches for as long as I can remember wellbutrin and neurontin . Recently I asked my doctor about them, and he told me as long as / could stop them with an OTC pain medicine / shouldn’t worry about them migraine treatment natural imitrex .
/ am concerned about the frequency of the headaches and the fact that the pain is always on the left side of my head buy cheap generic prilosec . / suffer from at least one a week, usually more keflex suspension flavor . Which pain reliever is best?
A diflucan and nystatin and comparison . Please check in with a headache center alcohol and ampicillin . A one-sided headache could be a symptom of migraine premature ejaculation trazodone . If that is your problem, a prescription migraine medication might be helpful superiority of ofloxacin over ciprofloxacin .
According to Joel Saper, MD, one of the country’s leading experts on headache, using any OTC pain reliever more than 2 days a week might aggravate the problem by causing rebound headaches clomid out of system .
MIGRAINE TRIGGERS
Alcohol (including but not limited to red wine)
Aspartame (found in many “light” sugar-free foods) Caffeine withdrawal
Chocolate
MSG (monosodium glutamate, found in many processed foods, including peanuts)
Nitrates (found in processed meats like hot dogs and salami)
Tyramine (found in aged cheese, chocolate, nuts, sour cream, and yogurt)
0 0 0
If you are diagnosed with migraines, you will want to know what stimuli jump-start them so you can avoid them to the extent possible apri stock pick free high rollers . The migraine-prone brain likes to have a certain amount of routine avalide eps manchester . Disrupted sleep, dehydration, missed meals, secondhand smoke, perfume, and a number of different foods or ingredients are common triggers medication lawsuits norvasc . 33 1 Keeping a headache diary is a good way to figure out what things get your migraine going avodart diflucan . In it, you record details like meals, exercise, sleep schedule, and so forth, as well as your migraines, so you can track back for any patterns discontinue clomiphene citrate .
The validity of some of these suspected triggers has been questioned overdose and children’s motrin . The manufacturer of aspartame has produced data demonstrating that aspartame does not cause headaches doryx prescription . One double-blind study using carob candy as a placebo for chocolate found that women with recurrent migraines were no more likely to develop headaches when given chocolate than when given placebo depakote levels in children . 112 This news was greeted with relief bordering on glee in some circles luvox withdrawl symptoms .
0 * 0
Q usc estradiol study . My wife loves chocolate, but she read that it can trigger headaches panasonic lithium ion cordless wood combo . Now she won’t eat it, even on special occasions side effects with taking prednisone 10mg . I used to buy her great chocolate for Valentine’s Day and her birthday and she really enjoyed it sniffing risperdal .
I never remember her getting a headache right after eating chocolate, but she does occasionally suffer from migraines effects of caffeine on parkinson’s disease . Can you tell me why chocolate is a problem? -
A uses of sertraline . Chocolate has long been blamed for triggering headaches because it is high in tyramine which is better caduet or altace . This substance is thought to release serotonin and make blood vessels contract and expand clozapine and weight gain . But research shows that most headache sufferers may not be susceptible to chocolate atacand hct tablet .
In a carefully designed study, 63 female headache sufferers were given either carob or chocolate bars (both mint flavored to disguise the obvious difference) penicillin alchohol . There was no significant association of headaches with chocolate bar consumption metformin hdl .
Your wife might perform her own experiment to see if she really is sensitive to chocolate doxazosin 6mg . She may be depriving herself needlessly generic versions of zocor .
0 0 0
Some scientists doubt that cheese, chocolate, and nuts are actually migraine triggers was is nortriptyline used for . Even if they are not migraine triggers for most people, some individuals may react to aspartame, chocolate, cheese, or any of a number of other foods hypertension and drugs and accupril .
Have you ever heard of sipping beer to stop a migraine? I went to a doctor in a little town in Louisiana, and he asked if I get an aura carmen allegra md . Before my head starts to hurt, my vision changes and I see little blinky lights levitra in women .
The doctor said / should drink a can of beer (not wine or liquor) as soon as I start to see the lights exelon web mail . Over the last 20 years, this remedy has worked almost every time bactrim prostate specific . / thought some other migraine sufferers would like to know fenofibrate 10 mg .
The 10 predict what foods will trigger a migraine for one person or be helpful for another caffeine and gluten-free diet . Beer is thought to cause headaches for some people warfarin in bulk . But we heard from one woman that if she drank a beer at the very first sign of trouble, the headache never materialized buying generic viagra . She even traveled with an emergency can for medicinal purpose-, The headache diary we mentioned will help you sort out what foods create problems for you depakote er effects on learning .
I have suffered with migraines all my life, but in the Iasi few years they got worse zanaflex snort . My medicine stopped working and I had headaches
every day buy caffeine free dr pepper .
I was desperate, so when someone suggested I see an allergist
did ibm thinkpad x lithium battery . I discovered I am allergic to a lot of foods I ate every day, includ-
ing coffee, wheat, rice, oats, eggs, and tomatoes dr robert bae in lithium .
Now that I have changed my diet, my head is much better seroquel recreational . Some
recurrent migraines warrant seeing an allergist doxycycline stomach pain .
Natural Remedies
The real action in migraine treatment is with the “triptan” prescription drugs that have been developed over the past decade coming off of cymbalta . There is also an interesting advance in a prescription drug to be taken preventatively by those who suffer chronic migraines zoloft and ginseng . But some herbal remedies and dietary supplements have shown promise in preventing migraines, too simvastatin teva side effects .
RIBOFLAVIN
I’ve had migraines for many years atarax 10 ml . I think I’ve taken every migraine drug on the market and even ended up in the emergency room a few times quinapril 0.5 mg .
I was finally sent to a neurologist who told me to take vitamin B complex (B-100) comprar el viagra gen rico .1 can honestly say I have not had a migraine headache in 2 years vytorin lawsuit north carolina . I couldn’t believe after so much time taking drugs that all I needed to do, was take a vitamin ibuprofen and water retention .
Riboflavin, a B vitamin (B), has been reported to help prevent migraine recurrences the mefloquine antiparasitic . One study found that 400 milligrams of riboflavin per day was able to reduce headache frequency markedly, from 4 days a month to 2 days a month synthroid drip .333 This is a very high dose, however lithium battery aa . Another study compared a product that combined 400 milligrams of riboflavin with 300 milligrams of magnesium and 100 milligrams of feverfew extract to a “placebo” of 25 milligrams 01 Tibofiavin lisinopril bactrim harmful interaction .31The researchers found no difference between the placebo and the combination product dexamethasone acoustic trauma . Nevertheless, the scientists weren’t disappointed because both groups had fewer migraines and less overall discomfort than they had had before starting the study naproxen risks .The investigators hypothesized that 25 milligrams of riboflavin might have been enough to help reduce migraines, which would have explained the lack of difference between the placebo and the tested preparation allegra-d dissolve .
Q valsartan hctz . I’ve read that riboflavin, feverfew, and magnesium can help prevent migraines pravachol effects sex drive . But finding all these things and taking multiple products can be difficult seroquel drug information . All three are contained in an OTC product called MigreLief prednisolone weight gain .
I am a 31-year-old female who has suffered from migraines for many years pharmacy glucophage . Two or three migraines a week really interfered with my life clemastine and betamethasone . I would make plans and then at the last minute I would have to cancel due to another migraine soma sujanani .
This was an ongoing problem what is celebrex for depression . Even after numerous doctor visits and many prescription medicines, I never got relief celexa ocd .
When I decided to try MigreLief as a more natural approach, I had fewer headaches within a month cipro side effecs . In a couple of months my migraines disappeared almost completely eye bleeding coumadin .
A metformin avandia . Thank you for bringing this product to our attention prednisone porstate cancer . The manufacturer, Quantum, points out that MigreLief is intended only for headache prevention and not for immediate pain relief the side effects for lexapro . We have not seen a placebo-controlled trial of this combination product, although there is some research to support the use of each of the ingredients for migraine prevention indian cialis .

triamcinolone A glucocorticosteroid with the actions, uses and side-effects of hydrocortisone, but differing by promoting sodium excretion, and so is of no value in adrenal cortex deficiency states. It is used in a wide range of inflammatory, allergic and respiratory states, and in inflammatory skin conditions.
Dose: 8-24 mg daily. It is also given as triamcinolone acetonide in doses of 40 ing by deep i.m. injection for a depot action. The acetonide is also given by iniraarticular injection in doses of 2.5-40 mg in local inflammation of the joints, and by intra-lesional injection in doses of 2-3 mg at any one site for the treatment of skin lesions. Triamcinolone actonide is also used as a 1% cream or ointment in severe inflammatory skin conditions. The side-effects are those of the corticosteroids (see hydrocortisone), but triamcinolone may also cause myopathy with high dose treatment. (Kenalog; Ledercort).
triamterene A potassium sparing diuretic, used mainly in association with more powerful drugs. It is indicated in oedematous conditions generally, and, as it causes some retention of potassium, its use avoids the need for supplementary potassium therapy.
Dose: 150-250 mg daily, with lower doses for the elderly and when given in association with other diuretics. Rash .ind gastrointestinal disturbances are ,ide-effects. (Dytac). See page 148 and Kahle 21.
tribavarin An inhibitor of viral replication used in severe viral bronchiolitis in infants.
Dose: by aerosol inhalation of a solution (20 ing/ml) for 12-18 hours daily liar 3-7 days, together with supportive therapy. (Viravid).
triclofos A derivative of chloral, with the sedative properties of the parent drug, but less irritant to the gastric mucosa.
Dose: I 2gdaily.
alternative to penicillamine in other conditions. The main side-effect is nausea.
trifluoperazine A powerful tranquillizing drug of the chlorpromazine type. It is used mainly in schizophrenia and similar psychoses, and in severe anxiety.
Dose: 10-20 nig or more daily according to need. In severe anxiety, 2-6 ing daily. In acute conditions, 1-3 mg daily by deep i.m. injection. As an antiemetic, it is given in doses of 2-4 mg or 1-3 ing by injection. The side-effects are similar to those of chlorpromazine, including extra-pyramidal symptoms, but the anticholinergic and sedative side-effects are less severe. (Stelayine). See page 168 and Table 30.
tri-iodothyronine See liothyronine.
trilostane An inhibitor of enzyme systems concerned with production of mineraloand glucocorticosteroids by the adrenal cortex, and so resembles metyrapone to some extent. It is used to control adrenal cortex hyperfunction and the excessive production of aldosterone.
Dose: 240 ing daily initially, adjusted tip to a maximum of 480 mg daily, according to the plasma corticosteroid levels. Care is necessary in liver and kidney dysfunction. (Modrenal).
trimeprazine A sedative antihistamine used in the treatment of pruritus and allergic itching conditions, and for premedication.
Dose: 30-100nig daily; pre-medication dose: 3 mg/kg. (Vallergan).
trimetaphan A short-acting ganglionic-blocking agent. It is used to produce a controllable reduction in blood pressure (luring neuro- and vascular surgery when a relatively bloodless field is necessary. Dose: by i.v. infusion, 3-4 nighnin initially, with subsequent doses carefully adjusted to the response. Side-effects are tachycardia and respiratory depression. Frequent determination of blood pressure during use is essential.
triclosan A chlorinated phenolic antiseptic, used mainly in surgical scrubs and similar preparations. (Manusept; Ster-Zac).
trientine A copper-chelating agent used in Wilson’s disease, but only for patients unable to tolerate penicillamine.
Dose: 1.2 -2.4 g daily. It is not an
trimethoprim An antibacterial agent similar in action to the sulphonamides. It is used in the prophylaxis and treatment of urinary tract and respiratory infections due to sensitive bacteria.
Dose: in chronic infections, 200-400 nig daily; prophylactic dose, 100mg daily. In severe infections, 130-250 mg twice daily by slow i.v. injection. Side-effects are nausea, vomiting,rash and pruritus, and possible bone marrow depression. (lpral;
Monotrim). See co-trimoxaole.
trimetrexateV An antibacterial agent used like atovaquone in AIDS patients with Pnettinocystis carinii pneumonia.
Dose: 45 ing/nidaily by i.v. infusion for 21 (lays, followed by calcium folinate 80 nighty daily for 28 days, orally or i.v. (Neutrexin).
I Tyr
oral antidiabetic drugs by increasing the sensitivity to endogenous insulin, and so acts as an insulin enhancer.
Dose: 200 mg daily with breakfast, increased if required by 200 mg at intervals of 2-4 weeks up to 600 mg daily. Side-effects are diarrhoea, fatigue and malaise. (Romozin). See page 131 and Table 13.
tropicamide A short-acting mydriatic agent similar to homatropine. Used as 0.5% and I% solution.
trimipramine A sedative anti-depressant with the action and side-effects of amitriptyline. It is valuable in depression complicated by anxiety.
Dose: 75-300 mg daily. (Surmontil).
triple vaccine Diphtheria, tetanus and pertussis vaccine for the primary ininitinization ofchildren.
Dose: 0.5 ml by i.m. or deep s.c. injection.
triptorelin A synthetic form of gonadorelin, used in the treatment of advanced prostatic cancer. Such cancers are testosterone-dependent, and triptorelin acts by depressing pituitary function, and so indirectly reduces the plasma level of testosterone.
Dose: It has been formulated so that a single i.m. injection of 4.2 ing depresses testosterone production for 28 days. Initially there may be a temporary flare-up of symptoms, which can be prevented by giving an anti-androgen for 3 days before treatment, and continued for 2-3 weeks. Patients should be monitored for uleric obstruction and spinal cord compression during the first months of treatment. DecapepivI Sr). See page 122.
tropisetron A 5–HT.,-receptor antagonist, similar to ondansetron bill with a longer action. It is used to control the nausea and vomiting induced by cancer chemotherapy.
Dose: initially as a 5 mg dose i.v. shortly before such therapy, and followed 1)), oral doses of 5 mg daily, I hour before food, for 5 days. Side-effects are dizziness, headache and gastrointestinal disturbance. (Navoban). See page 122.
tryparsamide Used in late trypansomiasis when the CNS is involved.
Dose: 1-3 g by injection weekly, up to a maximum Lill) of 24 g. May damage optic nerves.
tryptophan\7 An amino acid involved in the biosynthesis of serotonin. It is used in specialist centres for the treatment of severe and prolonged depression resistant to other drugs, and where a deficiency of serotonin may be a factor. (Optimax). See page 128 and Table 11.
tuberculin A product obtained from cultures of Mycobacterium tuberculosis. It is used in the diagnosis of tuberculosis. See BGC vaccine.
103
trisodium edetate A chelating or binding agent that is sometimes used in hypercalcaernia. The calcium complex so formed is excreted in the urine.
Dose: slow i.v. infusion tip to 70 rng1kg daily according to need and response, as shown by plasma calcium measurement. It is also used as a 0.4% solution for
ophthalmic use in lime burns of the eyes. Side-effects after injection are nausea, diarrhoea and cramp. Contraindicated in renal impairment. (Limclair).
troglitazone A new drug for non-insulin dependent diabetes. It differs from other
tulobuterol A selective beta,-adrenergic agonist of the salbutamol type, used in the prophylaxis and treatment of bronchospasm in asthma and related conditions. Dose: 4-6 mg daily. (Respacal). See page 118 and’fable 6.
tyrothricin A minor antibiotic used as
lozenges for mouth infections.

undecenoic acid An organic acid with useful antimycotic properties. It is used mainly as powder or ointment (5%), often with zinc undecenoate in the treatment of athlete’s foot and associated conditions.
urea An osmotic diuretic. It has been used orally in doses of 5-15 g. Applied locally as a 10% solution, it promotes granulation and reduces odour front•    foul ulcers.
urofollitrophin A preparation of human lollide-stimulating hormone (FSH) used with nienotrophin for the induction of ovulation. Dose and duration of treatment require careful control to avoid Over-stimulation. (Metrodin; Orgafol).
I Vas
allergen vaccines, used for desensitization to various allergens such as grass pollens, arc not true vaccines, but weak solutions of allergen extracts. They may precipitate allergic reactions in susceptible patients, and should be used only when emergency resuscitation measures are immediately available.
valaciclovirV A pro-drug of acyclovir used in herpes zoster. It is well absorbed orally, and quickly converted to the parent drug and promotes an improved response.
Dose: 3 g daily for 7 days, reduce([ in severe renal impairment. Dose in herpes simplex I g daily. Side-effects are headache and nausea. (Valtrcx). See page 144 and Table 19.
valproic acid (Convulex). See sodium valproate.
104
urokinase A plasmin activator obtained from human urine. It is used mainly in the thrombolysis of blocked i.v. shunts, and in the lysis of blood clots in the eye. Dose: 5000-37 500 units, instilled into the shunt; similar doses are injected into the anterior chamber of the eye for the resolution ofl)l blood clots. (Ukidan).
ursodeoxycholic acid The acid appears to be a solvent of cholesterol, and is given orally to promote the dissolution of cholesterol-containing gall stones.
Dose: 8-12 mg/kg as a single daily dose, hut prolonged treatment is required, which should be continued after the dissolution of the stones to inhibit recurrence. The dissolution of calcium-containing or radio-opaque stones is unlikely to occur. (Destolit; Ursofalk).
valsartan An angiotensin II receptor antagonist used in hypertension. It has a more selective action than the ACE-inhibitors. Dose: 80 mg daily. Combined treatment with a potassium-sparing diuretic is not advisable. (Diovan). See page 148 and Table 21.
vancomycin An antibiotic used in severe antibiotic-associated staphylococcal colitis ( pseudomembranous colitis).
Dose: 0.5 g daily for i-10 days. It is also given by injection in resistant bacterial endocarditis; I g twice a day by slow i.v. infusion over 1-2 hours, as rapid injection may cause anaphylactic shock. Blood concentrations of the antibiotic should be monitored, as the many side-effects include renal damage, ototoxicity and ncutropenia. Pruritus and upper body flushing may occur, and tinnitus is an indication that the drug should be withdrawn. (Vancocin).
vaccines Bacterial vaccines are suspensions or extracts of dead bacteria, but sonic anti-viral vaccines are also available. They may be given by s.c. or i.m. injection, and are used mainly for prophylaxis against a particular infection. The most commonly used vaccines include those for typhoid, cholera, diphtheria, influenza, tetanus and polio. Protection against mumps, measles, pertussis, rubella, yellow fever and hepatitis can also be obtained. The so-called
vasoconstrictors Drugs such as noradrenaline that constrict the peripheral vessels, and so cause a temporary rise in blood pressure. They are useful in hypotensive conditions when the blood volume is still adequate, and in controlling the fall in blood pressure that occurs in spinal and general anaesthesia.

potassium permanganate Purple crystals, soluble in water. A powerful oxidizing and deodorizing agent used 1:1000 as lotion, 1:10000 to 1:5000 as mouthwash, douche, bladder washout and bath.
povidone-iodine A complex of iodine with an organic carrier. When applied to the skin it slowly releases iodine, and has an extended antiseptic action. Used for local application to the skin and mucous membranes as solution containing the equivalent of 0.75-1 % of iodine.
pralidoxime A reactivator of cholinesterase. Organophosphorus insecticides inhibit that enzyme, and poisoning by such insecticides is an occupational hazard. Their toxicity can be reversed in part by the injection of 2 mg atropine, but the enzyme can be reactivated and muscle power restored by pralidoxime (30 mglkg) given by slow i.v. injection, repeated as required. It is effective only if given within 24 hours of exposure to the insecticide.
pravastatin A blood lipid-lowering agent with the specific enzyme-inhibiting properties of simvastatin, and used in primary hypercholesterolaemia not responding to the other drugs.
Dose: 10 -40 mg daily as a single dose. Side-effects include myalgia, rash and gastrointestinal disturbances. (Lipostat). See page 146 and Table 20.
prazinquantel A schistosomicide of low toxicity, effective against Schistosonia hamratobium, S, mansoni and S. japonicum It is also active against tapeworm. Dose: 10-20nig/kg as a single oral dose. (Biltricide).
prazosin An alpha-adrenoceptor blocking agent and vasodilator used in the treatment of hypertension and congestive heart failure.
Dose: I mg daily initially, increased as required up to a maximum of 20 mg daily. The initial dose may cause marked hypotension, and it should be taken at night, in bed. prazosin is also given in benign prostatic hypertrophy in maintenance doses of 4 mg daily. Side-effects are drowsiness, nausea and postural hypotension. (Hypovase). See page 148 and Table 21.
prednisolone A glucocorticosteroid with the actions and uses of hydrocortisone, but effective in much lower doses. It is often the preferred drug for oral use, and is given in a wide range of conditions including asthma, severe allergic reactions, rheumatoid arthritis, collagen disorders and inflammatory skin conditions. prednisolone is also of value in leukaemia, ulcerative colitis, the nephrotic syndrome, pemphigus, sarcoidosis, myasthenia gravis, haemolytic anaemia, agranulocytosis and other blood dyscrasias. Large doses are given in the immunosuppressive control of transplant surgery. The dose varies with the nature and severity of the condition being treated, and in every case the lowest dose required to evoke an adequate response should be used, after which the dose should be reduced in stages. Dose: in rheumatoid arthritis, 7.5-10 ing daily initially; other conditions may require doses up to 100 mg daily. Dose by i.m. injection 25-100 ing once or twice a week. Asa retention enema, 20 mg to relieve the inflammation of colitis and Crohn’s disease; as eye drops and ear drops, 0.5% solution. The side-effects are those of the corticosteroids generally, and include salt and water retention, hypertension, muscle weakness and peptic ulcer.
prednisone A glucocorticosteroid that is converted to prednisolone in the body, and so has the actions and uses of that drug.
prilocaine A local anaesthetic with the actions, uses and side-effects of lignocaine. (Citanest).
primaquine An antimalarial drug used mainly to prevent a relapse of benign tertian malaria after treatment with chloroquine, as it kills the malarial parasites that may still be present in the liver. Dose: 13 mg daily, for 2-3 weeks after chloroquine treatment. Side-effects are nausea and abdominal pain.

primidone An anticonvulsant used in the treatment of grand mat and psychomotor epilepsy.
Dose: 125nig daily initially, slowly increased as required up to a maximum of 1.5 g daily. Side-effects include drowsiness, nausea, blurred vision and rash. (Mysoline). See page 136 and Table 15.
probenecid A uricosuric agent that
increases the excretion of uric acid, and so is useful in the treatment of gout and hv
I peruncacrina.
Dose: O.5-2 g daily. An adequate fluid intake and an alkaline urine are necessary for the best response. probenecid also delays the excretion of penicillin and sonic cephalosporins, and is given in doses of 2 g daily to raise the plasma level of those antibiotics. Side-effects include occasional nausea, flushing and dizziness. (Benernid). ,See page 140 and Table 17.
procainamide A procaine derivative occasionally of value in the treatment of ventricular arrhythmias.
Dose: till to 50 mg/kg daily. It is also given by slow i.v. injection under E’C.C, control in doses of 25-50 ing/tininute up to a maximum of I g. Side-effects are gastrointestinal disturbances, lever and rash. (Prones(vi).
severe nausea and vomiting, 20 mg orally, or 12.5 mg by deep i.m. injection. It is also used as suppositories of 25 ing. (Stemetil). See page 168 and Table 30.
procyclidine An anticholinergic drug similar to benzhexol, used mainly in the treatment of parkinsonism. Reduces rigidity more than tremor.
Dose: 73-30 mg daily. In acute states it is given by i.m. injection in (loses of-i-10 mg, or 5 mg doses i.v. (Arpicolin; Kernadrin). See page 160 and Table 26.
progesterone The hormone of the corpus luicum, responsible for the preparation of the uterus to receive a fertilized ovum. It is used in dysfunctional uterine bleeding and in the premenstrual syndrome. Dose: 200-400 nig daily per ragina on a cyclic basis. (Cyclogest). Also a constituent of sonic oral contraceptives. See dydrogesteronc and norethisterone.
proguanil hydrochloride A synthetic antimalarial of high potency and low toxicity, used in the prophylaxis and suppressive treatment of malaria, often in association with chloroquine.
Dose: 100-200 rig daily, and continued for 6 weeks after leaving the infected area. (PaILICIrinc).
85
procaine A local anaesthetic now largely replaced by lignocaine.
procaine penicillin An old long-acting loan of penicillin, given together with penicillin G to obtain a high initial blood level. It is now used mainly in early syphilis. Dose: 900 mg daily by Lin. injection for 10 days. (Ificillin).
procarbazine A cytotoxic drug used mainly as part of a multi-drug treatment of Hodgkin’s disease. It is also used to treat other lymphomas no longer responding to other therapy.
Dose: 50 ing initially, increasing to a maxiintini of 300 mg daily. Side-effects include nausea, anorexia and bone marrow depression. Alcohol may cause a disulfiram reaction. (Nitulan). See page 122 and Table 8.
prochlorperazine A tranquillizer with the actions, uses and side-effects of chlorpromazine.
Dose: in schizophrenia, 25-100 Tng daily; in severe anxiety, 15-20 mg daily. In
promazine A tranquillizer with the actions, uses and side-effects of chlorpromazine, but less potent. It is used mainly to
control agitation in the elderly, and in other minor conditions of psychiatric disturbance.
Dose: 50-800 ing daily, adjusted to need .111d response; by injection 25-50 mg. (Sparine).
promethazine A long-acting antihistamine with sedative properties. It is used for the relief of a wide range of allergic conditions, in mild insomnia and for preoperative sedation. It is also of value as an antiemetic in the prophylaxis and treatment of travel sickness, vertigo and drug-induced nausea.
Dose: 25-50 mg daily; 25-100 ing by deep i.m. injection. In anaphylaxis, sometimes given by slow i.v. injection in doses up to 100 mg to supplement previously injected adrenaline. The side-effects are those of the antihistamines generally. (Phenergan). See page 110 and Table 2.

propafenone An anti-arrhythmic agent of the lignocaine type, used in the prophylaxis and treatment ofventricular arrhythmias. Dose: under ECG control 450 ing daily initially, after food, increased at 3-day intervals up to a maximum of 900 mg daily. Side-effects are dizziness, gastrointestinal disturbances and postural hypotension. (Arythniol).
propantheline An anticholinergic agent used as a spasmolytic in gastrointestinal disorders, in urinary frequency associated with bladder neck weakness, and in nocturnal enuresis.
Dose: 45-120 mg daily at least I hour before food. Side-effects include dryness of the mouth and blurred vision. (Pro- Banthine). See page 174 and Table 33.
propofol A non-irritant short-acting i.v. anaesthetic for smooth induction and maintenance of general anaesthesia for up to I hour. Dose: 2-2.5 mgft initially, followed by Supplementary doses of 0.1-0.2
ing/kg1min as required but some local pain may occur. Side-effects include mild hypotension, transient apnoea an([ bradycardia. Recovery is normally rapid and uneventful but delayed recovery, convulsions and anaphylaxis have been reported. Care is necessary in cardiovascular, respiratory or renal impairment. (Diprivan).
propranolol A beta-adrenoceptor blocking agent that reduces the cardiac response to circulating adrenaline and noracircrialine. It reduces the load on the heart during
exercise and stress, and is used in the treatment of angina, coronary insufficiency, cardiac arrhythmias, hypertension, and after myocardial infarction. It also ameliorates the tremor and palpitation of transient anxiety and stress, and is useful ill the prophylactic treatment of migraine. Dose: 160-320 mg daily according to need. In arrhythmias and thyrotoxic crisis, propranolol is given by slow i.v. injection in doses of I ing, repeated up to a maximum of 10 ing. Side-effects are bradycardia, bronchospasni and gastrointestinal disturbances. Care is necessary in renal and hepatic deficiency, asthma is a contraindication. (Inderal). See page 146 and’I'able 21.
propylthiouracil A thyroid inhibitor occasionally used as an alternative to carbiniazole in hyperthyroidism. Dose: 300-450 ing daily.
prostacyclin See epoprostenol.
prostaglandin A generic term applied to a series of closely related hormone-like fatty acid derivatives, originally extracted front the prostate gland, but now prepared
synthetically. Prostaglandins are widely distributed in animal tissues, and have a complex and varying range of biological activity.’rhus they may have a smooth muscle stimulating or relaxant action, pressor, vasodilator, inflammatory or other properties. The anti-inflammatory action of aspirin and related drugs is due to an inhibition of prostaglandin synthesis. See alprostadil, carboprost, dinoprostone and genieprost.
protamine sulphate A simple protein obtained from fish sperm. It neutralizes the anticoagulant effect of heparin, and it is used in controlling the haemorrhage i hat may occur during heparin therapy. Dose: 1% solution i.v. according to need; ling will neutralize 80-100 units of heparin.
prothionamide A second-line antitubercular drug that has been used in resistant tuberculosis. See page 170 and Table 31. It has also been used in the treatment of leprosy.
protirelin The thyrotrophin- releasing hormone (TRH) of the hypothalamus. Dose: in the diagnosis of hyperthyroidism, as a single i.v. dose ol’200 pg. It normally induces a rapid rise in the plasma levels of thyrotrophin, but in thyrotoxicosis that rise does not occur. Side-effects include nausea, flushing, a strange taste and urinary urgency.
protriptyline A tricyclic antidepressant with actions and uses similar to amitriptyline. It is used in depression associated with apathy, as it has some stimulant action. Dose: 15-40 mg daily. Side-effects are cardiovascular distu&nce, rash and photosensitivity. (Concordia). See
page 128 and Table 11.
proxymetacaine A local anaesthetic used as 0.5% drops in ophthalmology. (Oplithaine).
pseudoephedrine A drug very closely related to ephedrine, but now used mainly as a respiratory decongestant. It has been used in nocturnal enuresis, but may cause hallucinations in sonic children.

nisoldipine A calcium channel blocking agent of the nifedipine type. Used in mild to moderate hypertension pertension and in the prophylaxis of chronic angina.
Dose: 10 ing once daily before breakfast with adequate fluid, slowly increased as required up to 40 mg daily. Tablets to be swallowed whole, not chewed or crushed. It may react with sonic other drugs in common use, and grapefruit juice should be avoided. (Syscor). See pages 114 & 148, and ‘Fables 4 & 21.
nitrazepam A benzodiazepine used as a mild hypnotic when some degree of daytime sedation is acceptable.
Dose: 5-10 mg at night, with reduced doses for elderly patients, and in renal and’ hepatic dysfunction. Care is necessary in respiratory depression. Some dependence on nitrazepam may occur, so extended treatment should be avoided. The combined use of alcohol increases the hypnotic action. (Mogadon; Remnos). Set: page 152 and Table 22.
Nitrocine A solution of glyceryl trinitrate, for i.v. infusion in myocardial ischaemia and refractory angina.
nitrofurantoin An antibacterial agent with a wide range of activity against the majority of urinary pathogens. It is of value in cystitis and pyelitis, and in renal infections that have become resistant to other drugs. It is also used prophylactically but extended use requires care.
Dose: 400 mg daily; 50-100 mg at night for prophylaxis. It is ineffective in an alkaline urine. Nausea, rash and peripheral neuropathy are side-effects, and acute and chronic pulmonary reactions have been reported. (Furadantin; Macrobid).
nitroglycerine See glyceryl trinitrate. nitroprusside See sodium nitroprusside.
nitrous oxide The oldest inhalation anaesthetic. Supplied in blue cylinders, it is widely used for induction and as part of a mixed anaesthetic system. It is also used as
a 50% oxygen mixture as an inhalation analgesic in obstetrics.
nizatidine A potent and selective H,-receptor antagonist chemically distinct from cimetidine or ranitidine.
Dose: in the treatment of benign duodenal and gastric ulcer, single doses of 300 mg daily, taken in the evening, or 150 mg twice a day, and continued for 4 weeks, or for s weeks in gastric ulcer including non-steroidal anti-inflammatory agent (NSAID) -induced ulceration. Occasionally given by i.v. infusion in doses of300mg daily. For prophylactic maintenance, doses of 150 mg daily may be given for up to a year. Reduced doses should be given in renal impairment. Side-effects include headache, niyalgia, cough, pruritus and abnormal dreams. (Axi& Zinga). See page 162 and “Fable 27.
non-steroidal anti-inflammatory drugs (NSAIDs) A group of drugs with analgesic anti-inflammatory properties widely used in arthritic, rheumatoid and related conditions. The response to a NSAID and the incidence and severity of side-effects such as gastric irritation and renal toxicity vary considerably, and the best NSAID for an individual patient is the one that gives optimum relief with minimal side-effects. The NSAIDs, of which aspirin is the oldest example, act by interrupting the biosynthesis of prostaglandins from arachidonic acid, in which process the enzyme cycleoxygenase (COX) plays a key role. It is now known that COX exists in two forms identified as COX-1 and COX-2. The anti-inflammatory action of the NSAIDs appears to be linked with the inhibition of COX-2, whereas the unwanted side-effects are associated with COX- I inhibition. Different NSAIDs have varying degrees of activity against the different forms of COX, which may explain the differences in the therapeutic response and the incidence of side-effects. Recently, a NSAID (meloxicain) has been introduced that has a more selective inhibitory action on COX-2, with which the incidence of side-effects appears to be lower than with the older drugs, and so may have therapeutic advantages. In general, the response to a NSAID may take 1-3 weeks to develop fully, but monitoring for gastrointestinal bleeding may be advisable if treatment is extended. A NSAID should not be given to a patient with a history of asthma or hypersensitivity, nor when peptic ulcer is suspected or present. In all cases, treatment should be commenced with the lowest recommended dose, and caution is necessary in the elderly, and when renal or hepatic function is impaired. See page 165 and Table 29.
Dose: 20 100 mg daily. It is given in nocturnal enuresis in doses of 10-20 mg nightly, but the duration of treatment should not exceed 3 months. (Allcgron). See page 128 and Table 11.
76
noradrenaline (norepinephrine) The pressor hormone released at sympathetic nerve endings when such nerves are stimulated. It is also present with adrenaline in the medulla of the adrenal gland. It raises blood pressure mainly by a general vasoconstriction, whereas adrenaline acts by constricting the peripheral vessels and increasing the cardiac output. Noradrenaline is given by slow i.v. infusion in the treatment of shock, peripheral failure, and low blood pressure states, but the response may fluctuate with small variations in dose. The value of vasoconstrictors in shock is now questioned, as in shock the peripheral resistance may well be high, and the blood supply to essential organs such as the kidneys may be reduced.
Dose: 2-20 pg/niin, based on need and response. Great care must be taken to avoid extra-venous injection. (Levophed).
norethisterone An orally active progestogen. Used in amenorrhoea, functional uterine bleeding and dysmenorrhoea. Dose: 5-20 mg daily. In breast cancer, large doses up to 60 mg daily have been used. To postpone menstruation, 15 mg daily for 3 days have been used. In small doses, and in association with an oestrogen, norethisterone and related drugs are widely used as oral contraceptives. See page 264.
norfloxacin A quinolone antibacterial with the actions, uses and side-effects of cinoxacin and other quinolones.
Dose: in acute urinary tract infections, 801) mg daily for 3-10 days: in chronic infections continued for up to 12 weeks. ( I Itinor).
norgestrel (levonorgestrel) An orally active progesterone-like drug and inhibitor of ovulation. Used as a constituent of mixed oral contraceptive products, and as a ‘progestogen -only’ oral contraceptive. See page 264.
nortriptyline A tricyclic antidepressant with actions, uses and side-effects similar to those of amitriptyline, but with a reduced sedative activity.
NSAIDs See non-steroidal anti-inflamma-
tory drugs, page 168 and Table 29.
nystatin A fungicidal antibiotic, used in the treatment of intestinal, vaginal and superficial candidiasis. Oral tablets contain 500 000 units, pessaries contain 100 000 units; cream and ointment 1%. Dose: (oral) 2 million units daily. It is also used as pastilles of 100000 units for mouth infections.
octreotide A synthetic compound that inhibits the release of the growth hormone. It is used in acromegaly, which is caused by an overproduction of the growth hormone by a pituitary tumour and it is given in doses of 100-200pg 8-hourly by s.c. injection. It is also used in the symptomatic treatment of the carcinoid syndrome, in which the release of vasoactive substances by a gastro- pancreatic tumour causes flushing and severe diarrhoea.
Dose: 30 pg by s.c. injection, increased as needed up to 600 pg daily. It has no action on the cause of the syndrome. It is used occasionally in terminal care to reduce intestinal secretions and vomiting. Dose: 300-600 pg by s.c. infusion. (Sandostatin).
oestradloIlThe oestrogenic hormone controlling ovulation and menstruation. It has been used to control menopausal symptoms in doses of 10-20pg daily, but skin patches are now preferred for hormone replacement therapy (HRT). It is used occasionally as s.c. implants for long-term treatment. Oestradiol is also present in some cream preparations for menopausal atrophic vaginitis.
oestriol A natural oestrogen used in intravaginal cream to relieve the atrophic vaginitis and kraurosis vulvae associated with the menopause. Also given in doses of 1-32 mg daily for the genito-urinary symptoms linked with infections in oestrogen deficiency states. (Ovestin).

ofloxacin A fluorinated quinolone with the actions, uses and side-effects of other quinolones such as ciprofloxacin and norfloxacin. It is used mainly in urinary and lower respiratory tract infections. Dose: wii nig daily as a single morning dose. Dose in severe infections 200-400 mg daily by i.v. injection. An occasional side-effect is tendon damage with pain and inflammation, which requires immediate withdrawal of the drug. Exposure to strong sunlight should be avoided. (Tarivid). Also used as eye drops (0.3%) for superficial eye infections. (Exocin).
olanzapineV An antipsychotic agent for the treatment of schizophrenia. It has a more selective action on certain 5-H’I'- receptors, and is less likely to cause extra-pyramidal side-effects.
Dose: 10 mg as a single daily dose, slowly increased as required. Maintenance dose 5-20 mg daily. Side-effects include
sedation and weight gain. (Zyprexa). See page 168 and Table 30.
olsalazine A compound formed from mesalazine, and used in the treatment of ulcerative colitis. It is more slowly
absorbed, and reaches the colon largely unchanged, where it is broken down by intestinal bacteria to release the active metabolite mesalazine.
Dose: 1-3 g daily in acute mild ulcerative colitis; I g daily for maintenance, often for long periods. The common side-effect is a watery diarrhoea. Salicylate sensitivity is a contraindication. Patients are now advised to report any bruising, bleeding or
malaise. I( a blood dyscrasia is suspected, a blood count should be made -,in(] the drug withdrawn. (Dipentuni). See page 172 and Table 32.
ondansetron A potent antiemetic, of value in the nausea and vomiting associated with cancer chemotherapy. Such vomiting appears to be induced by the release of serotonin, which acts on receptors in the gut as well as stimulating the chernoreceptor trigger zone in the brain. Ondansetron is a specific (5—HT,) serotonin blocking agent, and is given before the commencement of cytotoxic treatment or radiotherapy.
Dose: 24 mg daily; in severe vomiting an initial dose of 8 ing is given by slow i.v. injection, followed by I ing/hrly for 24 hours by continuous i.v. infusion, followed by oral therapy. Side-effects are an initial sense of warmth, headache an(] constipation. (Zofran). See page 158.
topium The dried juice from the capsules of the opium poppy. See morphine.
orciprenaline A synipathomimetic agent with the bronchodilator properties of isoprenaline. It is used for the relief of obstructive airway conditions, although more selective drugs of the salbutarnol type are often preferred.
Dose: up to 80 ang daily; by aerosol inhalation up to 12 puffs (9mg) daily. Side-effects include tremor and tachycardia. (Ahiperil). See page 118 and Table 6.
orphenadrine A spasmolytic drug, used in the treatment of parkinsonism, and for the relief of voluntary muscle spasm. Dose: 150-400 nig daily. It may also be given by i.m. injection in doses of 60 mg. In parkinsonism it tends to control the rigidity more than the tremor. Side-effects are anticholinergic and include dryness of the mouth, dizziness and visual disturbances. Weight gain has occurred with high doses. (Disipal; Norflex). See
page 160 and Table 26.
77
omeprazole An inhibitor of the enzyme I I*K’A'I’Pase.’rhat enzyme controls the final stage of gastric acid production, and its inhibition by omeprazole is of value in peptic ulcer resistant to H, receptor antagonists, and in reflux oesophagitis, where such agents are not always effective. Dose: in benign gastric and duodenal ulcer, 20-40 ing as it single daily dose for 4-8 weeks. Larger doses may be required in the Zollinger—Ellison syndrome. Side-effects such as nausea, gasiro-intestinal disturbances and headaches are usually mild. (Losec). See page 162 and Table 27.
oxazepam A benzodiazepine with the actions, uses and side-effects of diazepam. It is useful in acute anxiety and panic states.
Dose: 45-120 mg daily. See page 117 and Table 5.
oxerutins A mixture of rutosides (flavonoid derivatives) which is claimed to reduce capillary fragility and permeability. It has been used in venous disorders of the lower limbs.
Dose: 750-1000 nig daily. (Paroven).

dornase alfa A recombinant form of human deoxyribonuclease (rhDNase) used in cystic fibrosis. The viscous purulent airways secretion of that disease is due to the presence of large amounts of extra-cellular DNA from degenerating leucocytes. Dornase alfa breaks down the DNA and reduces the sputum viscosity. Dose: 2500 units daily by inhalation from it jet nebulizer. Daily treatment is necessary to maintain the response. (Ptilillozvme).
dorzolamide An inhibitor of carbonic anhydrase that reduces the amount of sodium bicarbonate in the aqueous humour of the eye. It is used as eye drops (2%) 2 or 3 times a day as adjunctive therapy in ocular hypertension when beta-blockers are unsuitable or ineffective. (Trusopt). See page 138 and Table 16.
dothiepin (dosulepin) A tricyclic antidepressant with the uses and side-effects of antitriptyline. It is used in the treatment of depression when a sedative action is also indicated.
Dose: 75-150 mg daily. It may also be given as a single nightly dose to reduce daytime drowsiness. (Prothiaden). See page 128 and Table 11.
doxapram A respiratory stimulant useful in postoperative respiratory failure under expert control.
Dose: by i.v. injection 1-1.5 nig1kg according to need. It is also given by i.v. infusion in doses controlled by arterial food gas studies. Side-effects include hypertension, Ypertension, bronchospasin and tachycardia. (Dopram).
doxepin An antidepressant with the actions, uses and side-effects of dothiepin.
Dose: 30–300 nig daily; a single dose of I Ito mg is sometimes given at night. (Sinequan). See page 128 and Table 11.
doxorubicin A cytotoxic antibiotic widely used in leukaemia, lymphosarcoma, breast and lung cancer.
Dose: by fast i.v. infusion 60-75 nigIm’ at intervals of 3 weeks, or 20-25 mg/m’ daily for 3 days. It is also used by bladder installation (50 mg in 50 nil of saline solution) for superficial bladder tumours. Side-effects include bone marrow depression, cardiac damage, alopecia, buccal ulceration and nausea. Doxorubicin is it skin irritant, and should he handled with care. See page 122 and Table 8.
doxycycline A long-acting tetracycline. Dose: 200 mg initially, followed by 100 ing its a single daily (lose. In acne, a dose of 50 mg daily is given for some weeks. It should be taken with adequate fluid, with the patient in a sitting or standing position. (Nordox; Vibramycin).
droperidol A tranquillizer with unusual properties. It is given in severe psychotic conditions such as mania, in drug-induced nausea and vomiting and for preoperative sedation. It is also given with fentanyl to produce a state of detachment (neuroleptanalgesia).
Dose: 20-120 ing daily; 5-10 ing by injection; in cancer therapy induced vomiting (loses of 1-3 nig/hr have been given by continuous i.v. infusion. Side-effects are those of chlorpromazine and haloperidol. (Droleptan).
doxazocin An alpha-adrenoceptor blocking agent of the prazosin type, but with a longer action that permits a single daily dose.
Dose: in hypertension I mg initially, slowly increased after 7-14 days to 2 mg daily, up to a daily maximum of 16 ing, usually in association with other amihypertensive drugs. It is also used in Iliesymptcunitic treatment ofbenign prostatic . P
hy erplasia. Side-effects are
dydrogesterone An orally active progestogen that is virtually free from
any oestrogenic or androgenic side-effects. It is used in amenorrhoea, endometriosis, functional uterine bleeding, and threatened abortion.
Dose: 10-30 mg daily. (Ouphastort).

econazole An antifungal agent similar in actions and uses to clotrimazole. (Ecostatin; Pcvaryl).
ecothiopate A potent and long-acting iniotic that has been used in glaucoma as eye drops of 0.03-0.25%. It may cause cataract; its availability is strictly limited.
edrophonium A very short-acting drug of the neostigniine type. It is used in the diagnosis of myasthenia gravis.
Dose: 2-10 nig by i.v. injection, which causes a marked but transient increase in muscle power if myasthenia gravis is present.
eformoterol A selective P2 stimulant (agonist) with a rapid initial action, used as supplementary treatment in patients receiving other bronchodilator therapy for reversible airway obstruction.
Dose: by inhalation: 12µg twice daily, doubled if necessary. (.are is necessary in ischaernic heart disease and diabetes. Not to be used for acute attacks. (Foradil). Sec page 118 and Table 6.
enalapril An ACE inhibitor used in the treatment of all types of hypertension, and in congestic heart failure, often together with a diuretic.
Dose: i ing daily initially, increase(] as required up to 40 mg daily, and often given as a single dose. Dizziness, hypotension and loss of taste are some side-effects. ! I imov.i, :. See page 148 and Table 21.
enflurane An inhalation anaesthetic with the actions and uses of halothane, but less potent.
epoetin alfa and beta Recombinant fornis of human erythropoietin. (Eprex; Recormon). See erythropoietin.
epoprostenol A prostaglandin present in the walls of blood vessels that inhibits platelet aggregation. It is used to prevent platelet aggregation during cardiopulmonary bypass and charcoal haemoperfusion, and as an alternative to heparin in renal dialysis.
Dose: 10-20 ng1kShnin by continuous i.v. infusion. Smaller doses in renal dialysis. It is also a vasodilator, and side-effects are flushing and hypotension. (Flolan).
enoxaparin A low-molecular weight and longer acting form of heparin. It has the general properties of heparin, but with less effect on blood platelet activity. It is used in the prevention of venous thrombosis. Dose: 20 mg by sx. injection once daily ( I hour before surgery) for 7-10 days. (Clexane). See certoparin, dalteparin and tinzaparin.
enoximone An inhibitor of the enzyme phosphodiesterase. It has a digoxin-like action on the myocardium and is used in
eptacog alfa See Factor VIIa.
ergocalciferol See calciferol.
ergometrine The principal alkaloid of ergot. It promotes uterine contraction and is used for the rapid control of postpartum haemorrhage. Dangerous in the early stages of labour.
Dose: 05-1 nig orally; or 200-500 jig by injection. It is often used together with oxycytocin as Syntometrine. Side-effects are nausea and transient hypertension.

ergot A fungus that develops in rye and replaces the normal grain. The active principles include ergometrine and ergotamine. Chronic toxic effects characterized by gangrene of the extremities have followed the use of ergot-contaminated rye bread.
ergotamine Air alkaloid of ergot that constricts the cranial arteries, and is used solely for the relief of migraine not responding to analgesic therapy. Early treatment evokes the best response.
Dose: 2 mg initially up to 6 ing during an attack, not to be repeated until after an interval of some days.”I oral dose in I week: 10– 12 mg. It is also given by oral inhalation in doses of 360pg ( I puff), repeated after 5 minutes, up to a maximum of 6 puffs daily. Side-effects include headache and nausea, and the drug should be withdrawn if tingling of the extremities occurs.
trot suitable for prophylaxis because of the risks of toxicity. (Lingriine). Sec page 154
erythromycin Air antibiotic, resembling penicillin in its general range of activity, with the advantage of being active orally. It is useful in streptococcal and respiratory infections and in penicillin-resistant staphylococcal infections. Erythromycin is also of value in penicillin-sensitive patients. It is also given as a prophylactic before dental surgery. Dose: up to 4 g daily; in severe infections it may lie given by slow i.v. infusion in closes of 50 mg/kg daily. Side-effects include nausea and vomiting, and diarrhoea may occur after high doses. Gore is necessary in hepatic impairment. Preparations of erythromycin estolate are contraindicated in liver disease. Erythromycin may potentiate the action of warfarin. It should not be given with aslenii/.ole or terfenadine.
erythropoietin (epoetin) A renal hormone that regulates blood cell production in the bone marrow. Patients with renal failure maintained by haemodialysis do not
produce epoetin, and so become anaemic. A recombinant form of erythropoietin is available for replacement therapy.
Dose: 20-50 units/kg 3 times a week by s.c. or i.v. injection under haematological control. Side-effects include headache and hypertension, but a sudden migraine-like pain may indicate air impending hypertensive crisis. (Eprex; Itecormon).
eserine See physotiginine.
esmolol A very short-acting betaadrenoceptor blocker used in the emergency treatment of supra-ventricular arrhythmias, tachycardia and perioperative hypertension.
Dose: by i.v. infusion 50-200pg/kg/rniri under close control. (Brevibloc).
estramustine A compound of oestradiol and inustine, designed to release mustinc at oestrogen-receptor sites. It has a more localized action and so causes less myelodepression. It is used mainly in prostatic carcinoma, especially when resistant to other therapy.
Dose: 0.56-1.4 g daily. It should not be taken with food or milk products. Side-effects include gastrointestinal disturbances, nausea and gynaccomastia. (Fstracyt). See page 122 and Table 8.
ethacrynic acid A loop diuretic with a rapid and intense action used mainly in oliguria due to renal failure.
Dose: 50 ing daily initially, increased as required up to a maximum of400rng daily or on alternate days. Ethacrynic acid is also given by slow i.v. iniection in doses of 50-100 mg in acute or refractory conditions. Side-effects include nausea, diarrhoea and deafness. Some hypotension may occur initially. (Edecrin).
ethambutol An antitubercular drug.
Dose: 15 mg/kg daily, together with i i lo i i ipic in or isoniazid. Lower doses should be given in renal damage. It may cause visual disturbances with loss of acuity, but recovery is usually complete on withdrawal of the drug. (Myarnbutol). See page 170 and Table 31.
ethamsylate A haemostatic used in the prophylaxis and treatment of periventricular haemorrhage in low birth-weight infants.
Dose: 12.5 mg/kg by injection 6-hourly within 2 hours of birth and continued for 4 days. It is also used orally in menorrhagia. Dose: 2g daily. (Dicynene).
ethanolamine oleate A sclerosing agent used for varicose veins and bleeding oesophageal varices.
Dose: by local i.v. injection, 2-5 nil.
ether A colourless inflammable liquid, once widely used as a general anaesthetic but now replaced by halothane.

clobazam A benzodiazepine tranquillizer with the actions and uses of diazepam, but with reduce(] sedative effects. It is used mainly in the short-term treatment of anxiety.
Dose: 20-30 mg as a single nightly dose. III severe anxiety larger but divided doses niav be given under medical control. It is also useful in the auxiliary treatment of epilepsy. (Frkiuni). See page [ 17 and'i'able.5.
clobetasol A potent corticosteroid used as a cream or ointment (0.05%) in the short-term treatment of severe inflammatory skin conditions not responding to less powerful drugs. The application should be used sparingly as absorption with systematic and local side-effects may occur with excessive or prolonged treatment. (Dermovate).
clobetasone A locally acting corticosteroid, used as a cream or ointment (0.05%) in eczema and inflammatory skin conditions not responding to less potent drugs. (Fumovate).
be withdrawn. Clofibrate may potentiate tile action of oral anticoagulants.
clomiphene An anti-oestrogen used to stimulate ovulation in some types of anovulatory sterility.
Dose: 50 mg daily for 5 days a month, repeated if ovulation does not occur, Its use has resulted in occasional multiple births. If pregnancy does not follow tip to 6 courses, further treatment is of little use. Side-effects are hot flushes, and abdominal discomfort; visual disturbances indicate that treatment should be withdrawn. Contraindicated in hepatic disease and ovarian neoplasm. (Cloinid; Scroplictic).
clomipramine A tricyclic antidepressant with the actions, uses and side-effects of inupramine and related drugs, but with reduced sedative properties.
Dose: 30-150 mg daily orally; up to
150 nog daily by im. injection. (Anafranil). See page 128 and Table 11.
clodronate sodium A bisphosphonate used like etidronate and pamidronate in the hypercalcaemia of malignancy.
Dose: 1.6-3.2 g daily as a single dose
I hour before or after food. May also be given i.v. by infusion as a single daily dose of 300 mg for 7-10 days. Long oral treatment is necessary, and serum calcium and phosphate levels should be checked. Side-effects are nausea and diarrhoea. (Hollefos; Loron).
clofazimine An antileprotic agent given in association with dapsone and rifampicin to prevent the incidence of resistance. Dose: 300 Ing monthly; in lepra reactions, 300 ing daily for 3 months. It may cause discoloration of the urine, skin and lesions. (Lunprcric).
clofibrate A plasma lipid-regulating agent used in hyperlipidaernia in conjunction with dietary measures, to reduce excessive plasma levels of cholesterol and
t riglycerides.
Dose: 2 g daily, with regular checks on plasma lipid levels. Side-effects are transient nausea and abdominal discomfort.
It increases the biliary excretion of cholesterol, and gall stones are a contraindication. A myosins-like reaction may occur in renal impairment, and the drug should
clonazepam A benzodiazepine with a marked anticonvulsant action of value in all types of epilepsy.
Dose: I mg daily initially, increased LIP to 8 nog daily according to need. fit status epilepticus, I mg by slow i.v. injection, but apnoea and hypotension, requiring prompt treatment, may occur. Side-effects include drowsiness, dizziness and irritability and occasionally, paradoxical aggression. (Rivotril). See page 136 and Table 15.
Clonidine A centrally acting antihypertensive pertensive agent, now used less frequently.
Dose: 150-300pg daily initially, increased it required up to 1.2 mg daily. Doses of 150-300 pg have been given by slow i.v. injection. Sudden withdrawal of the drug may provoke a I P
hy ertensive crisis.
(Catapres). Clonidine is also used in doses of 100 pg daily in the prophylaxis of migraine. (Dixarit). The side-effects include sedation, dry mouth, fluid retention and bradycardia. See pages 154 andTible 21.
clorazepate A benzodiazepine tranquillizer with the actions, uses and side-effects of diazepam. Used mainly in the short-term treatment of anxiety.
Dose: 7.5-22.5 mg daily, or it single dose of I  mg at night. (Tranxene). See page 117 and Table 5.

clotrimazole An antifungal agent used local]) in vaginal candidiasis.
Dose: 104-200 mg as vaginal tablets or pessaries for nightly insertion. Also used as a 1% cream, lotion or dusting powder for fungal infections of the skin and cars. Side-effecis are local irritation and erythema. (Canestall).
cloxacillin An acid-stable, semi-synthetic penicillin that is not broken down by the enzyme penicillinase, and so is effective in infections due to penicillin-resistant staphylococci.
Dose: 2 g daily before lbod. In severe infeL bons 250-500mg by injection 6-hourly. Now largely replaced by flucloxacillin. The side-coccus are those of the penicillins generally. (Orbenin).
antibacterial action, but when given with a penicillin the antibiotic is able to
penetrate into the cell without loss of
activity. The combination is of value in    33 infections due to penicillin-resistant penicillinase-producing bacteria, including most staphylococci.
Dose: as amoxycillin 750 mg daily, doubled in severe infections, or 3-4 g daily by slow i.v. injection. The side-effects, are similar to those of arnpicillin, but a posttreatment reaction is cholestatic jaundice. (Augmentin).
co-beneldopa tablets of levodopa and henzerazide. (Madopar). See levodopa.
cocaine A local anaesthetic. Still used occasionally in ophthalmology as a 2% solution, often with homatropine.
clozapine A potent but potentially toxic dopamine-receptor blocking agent used in schizophrenia resistant to other drugs.
Dose: 12.5-50 mg daily initially (with care -risk of hypotension), slowly increased to 300 mg daily according to need. A serious side-effect is neutropenia that may lead to agranulocytosis, and treatment must be
Linder hospital supervision with regular blood monitoring. Patient, doctor and hospital pharmacist must be registered with the Clozaril (clozapine) Patient
Monitoring Service to maintain the necessary strict control of treatment. (Clozaril).
coal tar Tile black viscous liquid obtained from the distillation ofcoal. It is used mainly as Zinc and Tar Paste in psoriasis and atophic eczema.
co-amilofruse tablets of the diuretics ainiloricle and frusemide. (Fruinil; Lasoride).
co-amilozide Tablets of the diuretics amiloride and hydrochlorothiazide. (Moduretic).
co-amoxicla A mixture of clavulinic acid and amoxycillin.The resistance to penicillin by staphylococci and other organisms is due to penicillinases such as beta-lactamase in the bacterial cell wall. Those enzymes inactivate penicillin before it call enter the cell and exert its antibacterial action. Such inactivation can be prevented by inhibitors of beta-lactamase such as clavidanic acid. That acid has no
co-careldopa Tablets of levodopa and carbidopa. (Sinemet). See levodopa.
co-codamol Tablets of codeine and paracetamol.
co-codaprin Tablets of codeine and aspirin.
co-darrthramer Tablets of danthron and poloxamer.
cod-liver oil A rich source of vitamins A and 1). It is used as a dietary supplement to improve general nutrition, promote calcification and prevent rickets.
Dose: 2-10 in[ daily.
codeine One of the alkaloids of opium. It depresses the cough centre and is used in the treatment of useless cough. It also reduces intestinal motility, and is useful in the symptomatic treatment of diarrhoea. It also has mild analgesic properties, and is present with aspirin in co-codaprin and similar preparations. In large doses the constipating action may be a disadvantage. Dose: 10 60 mg.
co-dergocrine A cerebral vasodilator, sometimes used in the treatment of senile dementia.
Dose: 1.5 mg daily, but the response is unreliable. Side-effects include nausea, rash and bradycardia. (Hydergine).
co-dydramol Tablets of dihydrocodeine and paracetamol.