Posts Tagged ‘liver disease’

Generic Name
Deferasirox (deh-fur-ASS-sih-rox)
Brand Name Exjade
Type of Drug
Iron chelating agent. Prescribed For
Chronic iron overload. General Information
Deferasirox binds with iron in stored in the liver. It can also bind small amounts of zinc and copper but the importance of these effects are not known. Almost 3/4 of every dose is absorbed into the bloodstream. Most of the drug is broken down in the liver and passes out of the body in the feces. Women clear this drug from their bodies 17.5% slower than men, but this has not affected how it is used or the doses given.
Cautions and Warnings
Do not take deferasirox if you are allergic or sensitive to any of its ingredients. Most reactions occur within the first month of treatment.
People with liver disease should have monthly blood tests while taking deferasirox.
Kidney failure has developed in people taking deferasirox with fatal results in some cases. People with or those who are at risk of kidney failure should have routine kidney monitoring while taking this medication. People who are at risk for kidney failure in-ciudes seniors, those with kidney disease, and people taking medicines that affect kidney function. Dose adjustment may be needed.
Deferasirox has been associated with potentially severe reduced white-blood-cell and platelet counts, usually in people with preexisting blood disorders.
Rarely, deferasirox has caused hearing loss and eye problems. You should have a full hearing and eye exam before starting on this drug and once a year thereafter.
Skin rash can occur with this medicine. If it is severe, the drug may have to be temporarily stopped. It may be restarted at a lower dosage.
Possible Side Effects
♦    Most common: fever, headache, abdominal pain, cough, sore throat, nasal irritation, diarrhea, flu symptoms, nausea, and vomiting.
✓    Common: respiratory infections, bronchitis, runny nose, rash, upper abdominal pain, joint pain, back pain, tonsillitis, and ear infection.
✓    Less common: itching.
✓    Rare: stomach pain, swelling in the arms or legs, sleep disorder, skin color changes, dizziness, anxiety, gallstones, fatigue, early cataract and hearing loss, some visual haziness, and other eye disorders. Contact your doctor if you experience anything unusual.
Drug Interactions
•    Do not mix antacids containing aluminum with deferasirox. They can prevent it from being absorbed.
Food Interactions
This drug should be taken at the same time every day on an empAq stomach, 30 minutes before eating.
Ustlak 13bSe
Adult and Child (age 2 and over): 9-13.6 mg per lb. of body weight once a day. Dose adjustments will be made according to your response. See “Special Information” for a specific instructions on how to take these tablets.
Overdosage
Large doses of 2-3 times the prescribed amount taken for several weeks with no adverse effects have occurred. Overdose symptoms include hepatitis (mild fever, muscle or joint aches, nausea, vomiting, appetite loss, slight abdominal pain, diarrhea, and fatigue) and some drug side effects. Take the victim to a hospital emergency room for treatment because the heart may be affected. ALWAYS bring the prescription bottle or container.
Special Information
Call your doctor at once if you develop a severe skin rash.
You must have regular vision and hearing tests while taking deferasirox.
Deferasirox tablets should not be chewed or swallowed whole. They must first be mixed completely in 1/2-1 glass of water, orange juice, or apple juice. The tablet will not dissolve but tablet particles will become suspended in the liquid. Drink the resulting sus-Pension immediately. If there is anything left in the glass after drinking the suspension, add a small amount of liquid, mix it with the remaining tablet particles and drink it.
This drug can cause dizziness. Be cautious while driving, operating machinery, or doing anything that requires intense concentration.
If you forget a dose, take it as soon as you remember. If it is almost time for the next dose, skip the one you forgot and continue with your regular schedule. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: There are no studies of ranolazine in pregnant women or of its effect on the developing fetus. Pregnant women should take this drug only if its potential benefits outweigh the risks.
This drug may pass into breast milk. Nursing mothers should consider using infant formula.
Seniors: Seniors may experience more drug side effects than younger adults due to greater chances of reduced kidney, liver, and heart function; other diseases; or drug side effects.

Generic Name
Desmopressin (dez-moe-PRES-in)
Brand Names
DDAVP Minirin
Type of Drug
Pituitary hormone replacement.
Stimate
Prescribed For
Nighttime bed-wetting and diabetes insipidus (central or cranial diabetes); also used to control bleeding in certain forms of hemophilia A and von Willebrand’s disease.
General Information
Desmopressin acetate is a synthetic version of antidiuretic hormone (ADH). When ADH is lacking, the body has difficulty retaining fluid. People lacking ADH experience excessive thirst, increased urination, and dehydration; desmopressin controls these symptoms. When used for nighttime bed-wetting, desmopressin should be used in conjunction with behavioral or other non-drug therapies.
Cautions and Warnings
Do not take desmopressin if you are allergic or sensitive to any of its ingredients.
People, especially children and seniors and people with cystic fibrosis and electrolyte imbalances, should only drink enough fluid to satisfy their thirst while taking desmopressin because of the risk of water intoxication, which can result in seizures that could lead to coma. People with coronary artery disease, heart disease, or high blood pressure should use this drug with caution.
Heart attacks and St&D’KeS after treatment with desmopressin MV~bEbn reported in people at risk for them, but there is no definite link to desmopressin use.
People using desmopressin should have their urine checked regularly by their doctor. Your doctor should also check for nasal swelling, congestion, and scarring.
Drug Interactions
experience in blood pressure, loss of sodium, symptoms include coma, confusion, ng headache, decreased urination, rapid
zures), edema, stomach or abdominal dness or flushing of the skin, passing ain, and stuffy or runny nose. Contact perience any side effect not listed above.
Possible Side Effects
V Rare: slight increase
intoxication (
drowsiness, continuin
gain, and seizures)
nausea, rednes
vulvar pain
doctor if you
•    Desmopressin may increase the effects of other drugs that raise blood pressure. This only happens with large dosages.
•    Chlorpropamide and carbamazepine may increase the effects of desmopressin.
Food Interactions None known.
Usual Dose
Nasal Solution—Nighttime Bed-Wetting
Adult and Child (age 6 and over): 20 mcg (0.2 mL) at bedtime. Child (under age 6): not recommended.
Nasal Solution—Diabetes Insipidus
Adult: 0.1-0.4 mL a day in 1-3 doses.
Child (age 3 months-12 years): 0.05-0.3 mL a day in 1-2 doses.
Tablets—Nighttime Bed-wetting
Adult and Child (age 6 and over): Begin with 0.2 mg at bedtime, adjusting to individual need up to 0.6 mg.
Child (under age 6): not recommended.
Tablets—Diabetes Insipidus
Adult: Begin with 0.05 mg twice a day. Daily dosage should be increased according to individual need, up to 1.2 mg a day divided into 2-3 doses.
Child (age 4 aid over): Begin with 0.05 mg and adjust according to individual need.
Child (under age 4): not recommended.
Overdosage
Symptoms include headache, difficulty breathing, abdominal cramps, nausea, and facial flushing. Call your doctor or a hospi-tal emergency room if you suspect an overdose. Because there is no known antidote to desmopressin, your dosage may be temporarily reduced until overdose symptoms subside. If you seek treatment, ALWAYS bring the prescription bottle or container.
Special Information
Call your doctor if you develop headache, breathing difficulties, heartburn, nausea, abdominal or stomach cramps, or vulvar pain.
The Stimate Nasal Solution spray pump and Minirin spray must be primed before its first use. To prime the pump, press down 4 times. Stimate delivers 25 doses per bottle. Throw away the bottle after 25 doses have been used, because anything remaining after the 25th dose is likely to deliver less drug than is needed.
If you forget a dose of desmopressin, take it as soon as you remember. If you don’t remember until your next dose, skip the forgotten dose and continue with your regular schedule. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: The safety of using desmopressin during pregnancy is not known, though it has been used to treat diabetes insipidus in pregnant women without apparent harm to the fetus. When this drug is considered crucial by your doctor, its potential benefits must be carefully weighed against its risks.
Desmopressin may pass into breast milk. Nursing mothers who must use this drug should use infant formula.
Seniors: Seniors should avoid drinking too much fluid while taking desmopressin.

Generic Name
Diazepam (dye-AZ-uh-pam) rVg_l
Brand Names
Diastat    Valium
Diazepam Intensol    Valrelease
The information in this profile also applies to the following drugs:
Lorazepam &
Ativan    Lorazepam Intensol
Oxazepam M
Type of Drug  Benzodiazepine sedative.
Prescribed For
Anxiety, tension, fatigue, agitation (particularly due to alcohol withdrawal), muscle spasm, and seizures; also prescribed for irritable bowel syndrome and panic attacks.
General Information
Diazepam and other benzodiazepines directly affect the brain. They can relax you and make you more tranquil or sleepy, or they can slow nervous system transmissions in such a way as to act as an anticonvulsant.
Cautions and Warnings
Do not take diazepam if you know you are allergic or sensitive to any of its ingredients or to another benzodiazepine drug, including clonazepam.
Diazepam can aggravate narrow-angle glaucoma, but you may take it if you have open-angle glaucoma and are receiving therapy for it.
Other conditions in which diazepam should be avoided are severe depression, severe lung disease, steep apnea (intermittent cessation of breathing during sleep), liver disease, drunkenness, and kidney disease. In all of these conditions, the depressive effects of diazepam may be enhanced or could be detrimental to your overall condition.
Diazepam should not be taken by psychotic patients. It is not effective for them and can trigger unusual excitement, stimulation, and rage.
Diazepam is not intended for more \han 3-4 months of continuous use. Your comikkni) should be reassessed before continuing YOU( MS-16cation beyond that time.
Diazepam may be addictive. It should be used with caution in people with a history of drug dependence.
Drug withdrawal may develop if you stop taking it after only 4 weeks of regular use but is more likely after longer use. It may start with anxiety and progress to tingling in the hands or feet, sensi-tivity to bright light, sleep disturbances, cramps, tremors, muscle tension or twitching, poor concentration, flu-like symptoms, fatigue, appetite loss, sweating, and changes in mental state. Your dosage should always be reduced gradually to prevent drug withdrawal symptoms.
Possible Side Effects
Y Most common: mild drowsiness during the first few days of therapy. Weakness and confusion may occur, especially in seniors and in those who are sickly. If these effects persist, contact your doctor.
♦ Less common: depression, lethargy, disorientation, headache, inactivity, slurred speech, stupor, dizziness, tremors, constipation, dry mouth, nausea, inability to control urination, sexual difficulties, irregular menstrual cycle, changes in heart rhythm, low blood pressure, fluid retention, blurred or double vision, itching, rash, hiccups, nervousness, hysteria, psychosis, inability to fall asleep, and occasional liver dysfunction. If you have any of these symptoms, stop taking the drug and contact your doctor at once.
•    Rare: Rare side effects can affect your heart, stomach and intestines, urinary tract, blood, muscles, and joints. Contact your doctor if you experience any side effect not listed above.
Drug Interactions
•    Diazepam is a central-nervous-system depressant. Avoid alcohol, other sedatives, narcotics, barbiturates, monoamine oxidase inhibitor antidepressants, antihistamines, and antidepressants. Taking diazepam with these drugs may lead to excessive depression, drowsiness, or difficulty breathing.
•    Smoking may reduce diazepam’s effectiveness by increasing the rate at which it is broken down by the body.
•    Effects of diazepam may be prolonged when taken with cimeti(1(m,, Contraceptive drugs, disulfiram, fluoxetine, isoniazid, ketoconazole, rifampin, metoprolol, probenecid, propoxyphene, propranolol, and valproic acid.
•    Theophylline may reduce the sedative effects of diazepam.
•    If you take antacids, separate them from your diazepam dose by at least 1 hour to prevent them from interfering with the passage of diazepam into the bloodstream.
•    Diazepam may increase blood levels of digoxin and the chances for digoxin toxicity.
•    Levodopa + carbidopa’s effects may be decreased if it is taken with diazepam.
Combining diazepam and phenytoin may increase phenytoin blood concentrations and the risk of phenytoin toxicity.
Food Interactions
Diazepam is best taken on an empty stomach, but it may be taken with food if it upsets your stomach.
Usual Dose
Solution or Tablets
Adult’. 2-40 mg a day. Dosage must be adjusted to individual response for maximum effect. In seniors, less of the drug is usually required to control tension and anxiety.
Child (6 months and over): 1-2.5 mg 3 or 4 times a day; more may be needed to control anxiety and tension.
Child (under 6 months): not recommended.
Rectal Gel
Adult and Child (age 12 and over): 0.09 mg per lb. of body weight. Approximate dosage: 5 mg if 31-60 lbs., 10 mg if 61 -110 lbs., 15 mg if 111-165 lbs., or 20 mg if 166-244 lbs.
Child (age 6-11): 0.14 mg per lb. of body weight. Approximate dosage: 5 mg if 22-40 lbs., 10 mg if 41-82 lbs., 15 mg if 83-121 lbs., or 20 mg if 122-163 lbs.
Child (age 2-5): 0.23 mg per lb. of body weight. Approximate dosage: 5 mg if 13-24 lbs., 10 mg if 25-49 lbs., 15 mg if 50-73 lbs., or 20 mg if 74-97 lbs.
An extra 2.5 mg of the rectal gel may be given if a more precise dosage is needed or as a partial replacement for people who do not retain the full dosage after it is first inserted rectally.
Overdosage
SYMPUns of overdose include confusion, sleepiness, poor coordination, lack of response to pain, loss of reflexes, shallow breathing, low blood pressure, and coma. The victim should be taken to a hospital emergency room. ALWAYS bring the prescription bottle or container.

Generic Name
Clonidine (KLAH-nih-dene)
Brand Names
Catapres-TTS-2
Catapres-TTS-1    Catapres-TTS-3
Type of Drug
Alpha receptor stimulant.
Prescribed For
High blood pressure, including hypertensive emergency (diastolic blood pressure over 120); also used for excess sweating, childhood growth delay, attention-deficit hyperactivity disorder (ADHD), Tourette’s syndrome, restless leg syndrome, schizophrenic psychosis, migraine, ulcerative colitis, painful or difficult menstruation, hot flashes related to menopause, diagnosis of pheochromocytoma (adrenal-gland tumor), kidney poisoning associated with cyclosporine, diabetic diarrhea, smoking cessation, methadone and opiate detoxification, withdrawal from alcohol and benzodiazepines such as Valium, nerve pain following herpes attack, and allergic reactions in the presence of asthma triggered by external sources.
General Information
Clonidine stimulates nerve endings in the brain called alphaadrenergic receptors. It reduces blood pressure by dilating (widening) blood vessels. Clonidine works quickly, decreasing blood pressure within 1 hour. The other uses of clonidine relate to its stimulation of alpha receptors in the body.
Cautions and Warnings
Do not take clonidine if you are allergic or sensitive to any of its ingredients.
People who have had a stroke or recent heart attack or who have cardiac insufficiency or chronic kidney failure should avoid taking clonidine.
Some people develop a tolerance of their clonidine dosage. If this happens, your blood pressure may increase and your doctor may prescribe a higher dose.
Never stop taking clonidine without your doctor’s knowledge. If you abruptly stop taking clonidine, you may experience an unusual increase in blood pressure accompanied by agitation, headache, nervousness, and severe reactions, possibly death. Restarting clonidine therapy or taking another antihypertensive can reverse these effects.
Clonidine may cause degeneration of the    See your eye doctor for regular GheCk Ups lfiyou are taking this drug.
); you require surgery, your doctor will continue your clonidine therapy until about 4 hours before surgery and resume it as soon as possible afterward.
People who develop skin sensitivity (symptoms include rash, itching, and swelling) to Catapres-TTS, the transdermal patch form of clonidine, may experience the same reactions with oral clonidine.
Possible Side Effects
Tablets
♦    Most common: dry mouth, drowsiness, dizziness, constipation, and sedation.
♦    Common: headache and fatigue. These effects tend to diminish within 4-6 weeks.
•    Less common: appetite loss, swelling or pain in the glands of the throat, nausea, vomiting, weight gain, blood-sugar elevation, breast pain or enlargement, worsening of congestive heart failure, heart palpitations, rapid heartbeat, painful blood-vessel spasm, abnormal heart rhythms, electrocardiogram changes, feeling unwell, changes in dream patterns, nightmares, difficulty sleeping, hallucinations, delirium, anxiety, depression, nervousness, restlessness, rash, hives, thinning or loss of scalp hair, difficult or painful urination, nighttime urination, retaining urine, decrease or loss of sex drive, weakness, muscle or joint pain, leg cramps, increased alcohol sensitivity, dryness and burning of the eyes, dry nose, loss of color, and fever.
Transdermal Patch
✓    Most common: dry mouth and drowsiness.
✓    Less common: constipation, nausea, changes in sense of taste, dry throat, fatigue, headache, lethargy, changes in sleep patterns, nervousness, dizziness, impotence, sexual difficulties, and mild skin reactions including itching, swelling, contact dermatitis, discoloration, burning, peeling, throbbing, white patches, and generalized rash. Rashes of the face and tongue have also occurred but cannot be specifically tied to transdermal clonidine.
Drug Interactions
•    Combining clonidine and a beta-adrenergic blocker may increase the severity of a drug-withdrawal reaction and rebound high MW pressure. This reaction may be very serious.
•    Combining verapamil and clonidine may lead to very low blood pressure and atrioventricular (AV) block (abnormality in heartbeat patterns). This reaction may be very serious.
O    Avoid alcohol, barbiturates, and sedatives because they increase the depressive effects of clonidine.
•    Tricyclic and other antidepressants, appetite suppressants, estrogens, stimulants, indomethacin and other nonsteroidal anti-inflammatory drugs (NSAIDs), and prazosin may counteract the effects of clonidine.
•    clonidine may reduce the therapeutic effects of levadopa +
carbidopa.
Food Interactions
The tablets are best taken on an empty stomach but may be taken with food if they upset your stomach.
Usual Dose
Tablets
Adult: high blood pressure-100 mcg twice a day to start; may be raised by 100 mcg a day until maximum control is achieved. Take no more than 2400 mcg a day. Other uses-100-goo mcg a day, or up to 0.8 mcg per lb. of body weight in divided doses. Seniors should start with a lower dose and increase more slowly.
Child: 50-400 mcg orally twice a day.
Transdermal Patch
Adult: 100 mcg delivered daily from a patch applied once every 7 days. Up to two 300-mcg patches may be needed to control blood pressure. Transdermal dosage exceeding 600 mcg a day has not been shown to increase effectiveness.
Child: not recommended.
Overdosage
Symptoms of overdose are slow heartbeat, central- nervous-system depression, very slow breathing, low body temperature, pinpoint pupils, seizures, lethargy, agitation, irritability, nausea, vomiting, abnormal heart rhythms, mild increases in blood pressure followed by a rapid drop in blood pressure, dizziness, weakness, loss of reflexes, and vomiting. Victims should be taken to a hospital emergency room immediately. ALWAYS bring the prescription bottle or container.
Special Information
Gk’3t1161)e causes drowsiness in about 1/3 of people who take it. Be extremely careful while driving or performing any task that requires concentration. This effect is prominent during the first few weeks of clonidine therapy and then tends to decrease.
Do not take over-the-counter cough and cold medications unless directed by your doctor.
Call your doctor it you become depressed or have vivid dreams or nightmares while taking clonidine, or if you develop swelling in your feet or legs, paleness or coldness in your fingertips or toes, or any persistent or bothersome side effect.
Apply the transdermal patch to a hairless area of skin such as the upper arm or torso. Use a different skin site each time. If the patch becomes loose, apply the supplied adhesive directly over it. If the patch falls off before 7 days are up, apply a new one. Do not remove the patch while bathing.
If you forget a dose of oral clonidine, take it as soon as possible and then go back to your regular schedule. If you miss 2 or more consecutive doses, consult your doctor; missed doses may cause blood pressure increases and severe adverse effects. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: Clonidine passes into the fetal bloodstream. Animal studies show that clonidine may damage the fetus in doses as low as 1/3 the maximum dose. When this drug is considered crucial by your doctor, its potential benefits must be carefully weighed against its risks.
Clonidine passes into breast milk. Nursing mothers who must take this drug should use infant formula.
Seniors: Seniors are more susceptible to the effects of this drug and should begin with lower doses.

Generic Name
Clopidogrel (kloe-PID-oe-grel) nQ
Brand Name  Plavix
Type lul Drug Antiplatelet.
Prescribed For
Heart attack and stroke prevention; also used for blood thinning after placement of a vascular stent.
General Information
Artery-clogging blood clots are often the cause of heart attacks and strokes. clopidogrel reduces the risk of both by helping prevent blood-clot formation. This drug thins the blood by making platelets—the cells that aggregate to form clots—less “sticky.” It starts working in as little as 2 hours after taking a single tablet. The drug’s blood-thinning effect lasts until inactivated platelets are replaced by the body. Studies suggest that clopidogrel is more effective than aspirin in preventing heart attack and stroke in people at risk. People taking clopidogrel after scent surgery usually take it for a relatively short period. Those taking it to prevent a heart attack or stroke must take it for life.
Cautions and Warnings
Do not take clopidogrel if you are allergic or sensitive to any of its ingredients or to ticlopidine, a related antiplatelet. These drugs can rarely cause a rapid drop in white-blood-cell count.
People with bleeding ulcers, brain hemorrhages, or other bleeding problems should use clopidogrel with caution.
Thrombotic thrombocytopenic purpura (TTP) is a rare but serious complication of clopidogrel, sometimes reported after less than 2 weeks of treatment. See your doctor right away if you develop a sudden fever, unusual bruising, nosebleeds, bleeding gums, or any other unusual symptoms. TTP reduces your platelet count, interfering with blood clotting, and affects white-blood-cell count.
People with liver problems should use clopidogrel with caution.
Possible Side Effects
✓    Most common: rash and other skin problems.
✓    Common: chest pain, accidents, flu-like symptoms, pain, headache, dizziness, abdominal pain, upset stomach, joint pain, back pain, black-and-blue marks, and respiratory infection.
✓    Less common: tiredness, Swollen arms or legs, high blood pressure, diarrhea, nausea, bleeding, nosebleeds, breathing difficulties, runny nose, coughing, bronchitis, high blood cholesterol, urinary infection, and depression.
✓    Rare: bleeding in the brain and stomach ulcer. Contact your doctor if you experience any side effect not listed above.
Drug Interactions
•    Clopidogrel may interfere with the body’s ability to break down fluvastatin, nonsteroidal anti-inflammatory drugs (NSAIDs), phenytoin, tamoxifen, tolbutamide, torsamide, and
warfann.
•    Combining clopidogrel and NSAIDs may increase blood loss and bleeding in the stomach and intestines.
•    Do not combine clopidogrel and other antiplatelet drugs or
the anticoagulant (blood thinner) warfarin unless you are
under your doctor’s direct supervision. This interaction may
prevent normal blood clotting and lead to severe bleeding
problems.
Food Interactions
Clopidogrel may be taken without regard to food or meals.
Usual Dose
Adult: 75 mg a day.
Overdosage
Little is known about the effects of clopidogrel overdose aside from reduced blood clotting. Overdose victims should be taken to a hospital emergency room. ALWAYS bring the prescription bottle or container.
Special Information
Minor cuts may take longer to stop bleeding during treatment with clopidogrel. If you are having surgery, make sure your doctor knows you are taking clopidogrel. You may have to stop taking the drug I week before surgery.
If you forget a dose, take it as soon as you remember. If it is almost time for your next dose, skip the forgotten dose and continue with your regular schedule.
Special Populations
Pregnancy/Breast-feeding: The safety of using clopidogrel during pregnancy is not known. Other antiplatelet drugs, tike aspirin, are not used during pregnancy due to their possible effects on Mrjlher and fetus. When this drug is considered crucial by your doctor, its benefits must be carefully weighed against its risks.
Clopidogrel may pass into breast milk. Nursing mothers who must take this drug should use infant formula.
Seniors: Seniors may take this drug without special precaution.

Generic Name
Clorazepate (klor-AZ-uh-pate) 99
Brand Names
Gen-Xene    Tranxene-SD
Tranxene    Tranxene T-Tab
Type of Drug
Benzodiazepine sedative.
Prescribed For
Anxiety, tension, fatigue, and agitation; symptoms of acute alcohol withdrawal; partial seizures; also prescribed for irritable bowel syndrome and panic attacks.
General Information
Clorazepate dipotassium is a benzodiazepine. Benzodiazepines directly affect the brain. They can relax you and make you more tranquil or sleepier, or they can slow nervous system transmissions in such a way as to act as an anticonvulsant. Many doctors prefer benzodiazepines to other drugs that can be used to similar effect because they tend to be safer, have fewer side effects, and usually work as well, if not better.
Cautions and Warnings
Do not take clorazepate if you are allergic or sensitive to any of its ingredients or to another benzodiazepine drug, including clonazepam.
Clorazepate can aggravate narrow-angle glaucoma, but you may take it if you have open-angle glaucoma and are receiving therapy for it.
Other conditions in which clorazepate should be avoided are: severe depression, severe lung disease, sleep apnea (intermittent cessation of breathing during sleep), liver disease, drunkenness, and kidney diseaap_, to inOn of these conditions, the qq)NSSvve effects of clorazepate may be enhanced or could be detrimental to your overall condition.
Clorazepate should not be taken by psychotic patients because it is not effective for them and can trigger unusual excitement, stimulation, and rage.
Clorazepate is not intended to be used for more than 3-4 months at a time. Your doctor should reassess your condition before continuing your prescription beyond that time.
Clorazepate may be addictive. It should be used with caution in people with a history of drug dependence.
Drug withdrawal may develop if you stop taking it after as few as 4 weeks of regular use but is more likely after longer use. It may start with anxiety and progress to tingling in the hands or feet, sensitivity to bright light, sleep disturbances, cramps, tremors, muscle tension or twitching, poor concentration, flu-like symptoms, fatigue, appetite loss, sweating, and changes in mental state. Your dosage should always be reduced gradually to prevent drug withdrawal symptoms.
Possible Side Effects
Weakness and confusion may occur, especially in seniors and in those who are more sickly.
✓    Most common: mild drowsiness during the first few days of therapy.
✓    Less common: confusion, depression, lethargy, disorientation, headache, inactivity, slurred speech, stupor, dizziness, tremors, constipation, dry mouth, nausea, inability to control urination, sexual difficulties, irregular menstrual cycle, changes in heart rhythm, low blood pressure, fluid retention, blurred or double vision, itching, rash, hiccups, nervousness, inability to fall asleep, and occasional liver and kidney dysfunction. If you have any of these symptoms, stop taking the medicine and contact your doctor immediately.
✓    Rare: Rare side effects can affect your heart, stomach and intestines, urinary tract, blood, muscles and joints. Contact your doctor if you experience any side effects not listed above.
Drug Interactions
•    Clorazepate is a central-nervous-system depressant. Don’t mix it with alcohol, other sedatives, narcotics, barbiturates, monoamine oxidase inhibitor and other antidepressants, and antihistamines. Taking Clorazepate with these drugs may result in excessive depression, tiredness, sleepiness, breathing difficulties, or related symptoms.
•    Smoking may reduce clorazepate’s effectiveness by in-
creasing the rate at which it is broken down by the body.
•    Clorazepate’s effects may be prolonged when it is mixed with cimetidine, contraceptive drugs, disulfiram, fluoxetine, isoniazid, ketoconazole, metoprolol, probenecid, propoxyphene, propranolol, rifampin, or valproic acid. Theophylline may reduce clorazepate’s sedative effects.
•    If you take antacids, separate them from your clorazepate dose by at least 1 hour to prevent them from interfering with the absorption of clorazepate into the bloodstream.
•    Clorazepate may increase blood levels of digoxin and the chances of digoxin toxicity.
•    The effect of levodopa + carbidopa may be decreased if it is taken together with clorazepate.
•    Combining clorazepate with phenytoin may increase phenytoin blood concentrations and the chances of phenytoin toxicity.
Food Interactions
Clorazepate is best taken on an empty stomach, but it may be taken with food if it upsets your stomach.
Usual Dose
Immediate-Release
Adult and Child (age 9 and over): 15-60 mg daily. The average dose is 30 mg in divided quantities, but dosage must be adjusted to individual response for maximum effect. Maximum recommended daily dose is 90 mg. For treatment of anxiety, clorazepate may be taken as a single dose at bedtime.
Child (under age 9): not recommended.
Sustained-Release
Adult: The sustained-release form of clorazepate may be given as a single dose, either 11.25 or 22.5 mg, once every 24 hours. Sustained-release tablets are not recommended for the initial dosage.
Child: not recommended.
Overdosage
Symptoms of overdose are confusion, sleepiness, poor coordination, lack of response to pain such as a pin prick, loss of reflexes, shallow breathing, low blood pressure, and coma. The victim should be taken to a hospital emergency room. ALWAYS bring the prescription bottle or container.
Special Information
Clorazepate can cause tiredness, drowsiness, inability to concentrate, or similar symptoms. Be careful if you are driving, operating machinery, or performing other activities that require concentration.
People taking clorazepate for more than 3 or 4 months at a time may develop drug withdrawal reactions if the medication is stopped suddenly (see “Cautions and Warnings”). Do not stop taking clorazepate or increase or decrease your dosage without first consulting your doctor.
If you forget a dose of clorazepate, 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.
Special Populations
Pregnancy/Breast-feeding: Clorazepate may cause birth defects if taken during the first 3 months of pregnancy. Avoid this drug if you are or might be pregnant.
Clorazepate may pass into breast milk. Nursing mothers who must take clorazepate should use infant formula.
Seniors: Seniors, especially those with liver or kidney disease, are more sensitive to the effects of clorazepate and generally require smaller doses to achieve the same effect.

Generic Name
Carvedilol (car-VAY-dih-lol)
Brand Names
Coreg    Coreg CR
Type of Drug  Alpha-beta-adrenergic blocker.
Prescribed For
Heart failure, high blood pressure, angina pain, and cardiomyopathy.
General Information
Carvedilol was the first beta blocker approved for heart failure. It is also the only beta blocker approved for severe heart failure.
Carvedilol blocks both the alpha- and beta-adrenergic portions of the central nervous system. This dual action reduces the amount of blood pumped with each heartbeat and also decreases the risk of tachycardia (very rapid heartbeat). Carvedilol’s beta-blocking effects begin within an hour of taking the first dose; maximum blood-pressure-lowering occurs after 1 or 2 weeks. The drug also causes blood vessels to dilate (widen), allowing the heart to pump blood more efficiently.
Cautions and Warnings
Do not take carvedilol if you are allergic or sensitive to any of its ingredients, or if you have AV block, sick sinus syndrome or severe bradycardia (slow heart rate) without the use of a pacemaker.
Carvedilol should not be taken 13y patients with bronchial disease, qQQkVaS thronic bronchitis, emphysema, or asthma.
Carvedilol therapy should not be stopped suddenly due to the risk of worsening the heart condition.
In studies, carvedilol caused mild and reversible liver injury in about 1 of every 100 people who took it. Those with severe liver disease should not take this medication. Call your doctor at once if you develop signs of liver damage (symptoms include severe itching, dark-colored urine, flu-like symptoms, appetite loss, and yellowing of the skin or whites of the eyes).
Check with your doctor about continuing carvedilol if you are to receive general anesthesia; heart function that is depressed by anesthetics can worsen if carvedilol is used at the same time.
Make sure your doctor knows if you have diabetes. Carvedilol can mask signs of low blood sugar and may increase the effects of insulin or oral antidiabetes drugs, making it more difficult to recover from the effects of low blood sugar.
Carvedilol can mask symptoms of an overactive thyroid gland. Abruptly stopping carvedilol can trigger an attack of hyperthyroidism.
Possible Side Effects
Most side effects are considered mild or moderate.
✓    Most common: dizziness, sleepiness or sleeplessness, diarrhea, abdominal pain, slow heartbeat, dizziness when rising from a sitting or lying position, swelling of the hands or feet, sore throat, breathing difficulties, tiredness, back pain, urinary infection, and viral infection.
✓    Less common: extra heartbeats; palpitations; blood-pressure changes; fainting; reduced blood supply to the arms and legs (symptoms include aches, cramps, pain, or tiredness on walking, or pain in the foot, thigh, hip, or buttocks); tingling in the hands or feet; reduced sensation; depression; nervousness; constipation; gas; liver irritation; cough; impotence and reduced sex drive in men; itching; rash; visual difficulties; ringing or buzzing in the ears; high blood cholesterol, sugar, or uric acid; anemia; weakness; hot flushes; leg cramps; dry mouth; not feeling well; sweating; and muscle ache.
✓    Rare: Rare side effects can affect the heart, mental status, the respiratory tract, the urinary tract, and the kidney. It can also cause hair loss, weight gain, high blood-triglyceride levels, low blood-platelet counts, and sugar in the urine. Contact your doctor if you experience any side effect not listed above.
Drug Interactions
•    Carvedilol increases the effects of insulin and oral antidiabetes drugs. People taking this combination must monitor their blood sugar levels regularly. Call your doctor if there is any change from your normal pattern.
•    Carvedilol increases the effects of verapamil, diltiazem, and similar calcium-channel blocking drugs.
•    Monoamine oxidase inhibitor antidepressants may increase the effects of carvedilol.
•    Carvedilol increases the blood-pressure-lowering effect of clonidine. People taking this combination may need less clonidine to control their pressure.
•    Carvedilol increases the amount of digoxin in the blood by about 15%. Your digoxin dosage may have to be adjusted.
•    Cimetidine increases the amount of carvedilol absorbed into the blood by about 30%, but the importance of this interaction is not clear.
•    Rifampin reduces the amount of carvedilol in the blood by about 70%. Dosage adjustment is necessary.
•    Do not consume alcohol (including medicines that contain alcohol) within 2 hours of taking carvedilol.
Food Interactions
Take carvedilol with food to reduce the risk of dizziness or fainting.
Usual Dose
Heart Failure
Adult: 3.125 mg twice a day for 2 weeks. Dose may be doubled every 2 weeks to the highest level tolerated. Maximum daily dosage is 25 mg twice a day in people weighing less than 187 lbs., and 50 mg twice a day in people who weigh more.
High Blood Pressure and Cardlomyopathy
Adult: 6.25 mg twice a day to start, increased to 25 mg twice a day if needed.
Senior: Seniors may require smaller doses than younger adults. Child (under age 18): not recommended.
Overdosage
~3%rdose may lead to very low blood pressure (symptoms include dizziness and fainting), slow heartbeat and other cardiac symptoms, including shock and heart attack, breathing difficulties, bronchial spasm, vomiting, periods of unconsciousness, and seizures. Overdose victims must be taken to a hospital emergency room. ALWAYS bring the prescription bottle or container.
Special Information
Carvedilol should be taken continuously. Do not stop taking it without your doctor’s knowledge, because abrupt withdrawal may cause chest pain, breathing difficulties, increased sweating, and unusually fast or irregular heartbeat. The dose should be gradually reduced over a period of about 2 weeks.
People taking carvedilol may become dizzy or faint when rising quickly from a sitting or lying position. If this happens to you, sit or lie down until you feel better. Carvedilol can also cause drowsiness, lightheadedness, or blurred vision. Be careful when driving or doing any task that requires concentration.
Contact lens wearers are more likely to experience dry eyes with carvedilol.
Swallow extended-release tablets whole; do not crush or break them.
It is best to take carvedilol at the same time each day. If you forget a dose, take it as soon as you remember. If it is within 4 hours of your next dose, skip the dose you forgot and continue with your regular schedule. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: Animal studies indicate that carvedilol passes into the fetal bloodstream and may interfere with pregnancy. When this drug is considered crucial by your doctor, its potential benefits must be carefully weighed against its risks.
It is not known if carvedilol passes into human breast milk, though it passes into rat breast milk. Beta-blocking drugs like carvedilol may affect babies’ hearts. Nursing mothers who must take this drug should use infant formula.
Seniors: Seniors are more likely to develop dizziness and may require reduced dosage.

Generic Name
Bupropion (bue-PROE-pee-on) M
Brand Names
Budeprion    Wellbutrin SR
Budeprion XL    Wellbutrin XL
Wellbutrin    Zyban
Type of Drug
Antidepressant and smoking deterrent.
Prescribed For
Depression, seasonal affective disorder, and nicotine addiction.
General Information
Bupropion is used for major depression and seasonal affective disorder, and may work as a smoking deterrent by acting on key hormone systems in the brain. It works primarily on dopamine and noradrenaline, unlike the SSRI antidepressants, which primarily work on serotonin. Bupropion may not act until you have taken it for 2-4 weeks. The drug clears your system about 2 weeks after you stop taking it.
Cautions and Warnings
Do not take bupropion if you are allergic or sensitive to any of its ingredients.
Antidepressants have been associated with an increased risk of suicide, especially in children and teenagers. Suicide is always a risk in depressed people, who should only be allowed to have minimal quantities of medication in their possession. Clinical worsening of a depressed person’s condition may also occur early
therapy with anticlepressa”kS.
People with seizure disorders, people who have had a seizure in the past, and people with bulimia or anorexia nervosa should be very careful about taking bupropion because they are at a higher risk of having a seizure. About 4 in 1000 people taking bupropion in dosages up to 450 mg a day develop a seizure. The risk of developing a seizure increases by about 10 times with dosages between 450 and 600 mg a day. About half of the people who developed a seizure on bupropion had a risk factor such as a history of head injury, a previous seizure, or a nervous system tumor, or were taking another drug associated with increased seizure risk.
People with unstable heart disease or those who have had a recent heart attack should take this drug with caution because of possible side effects.
Many people taking bupropion experience some restlessness, agitation, anxiety, and sleeplessness, especially soon after they start taking the drug. Some even require sleeping pills to counter this effect, and others find the stimulation so severe that they have to stop taking bupropion.
Bupropion may trigger a manic episode in those with depression or bipolar disorder.
People taking bupropion may experience hallucinations, delusions, or psychotic episodes. Dosage reduction or drug withdrawal is usually necessary to manage these reactions.
One-quarter of those who take bupropion lose their appetite and 5 or more lbs. of body weight. People who have lost weight due to their depression should be cautious about taking bupropion.
People switching from bupropion to a monoamine oxidase inhibitor (MA01) antidepressant, or vice versa, should allow at least 2 weeks to pass between stopping one drug and starting the other.
People with kidney or liver disease require less bupropion at the beginning of treatment. Dosage should be increased cautiously.
An antidepressant other than bupropion should be seriously considered for people with a history of drug abuse because of the mild stimulation bupropion causes. These people may require larger-than-usual dosages, but they are still susceptible to seizures at these higher dosages.
Possible Side Effects
About 10% of people stop taking bupropion due to side effects.
♦ Most common: dry mouth; dizziness; rapid heartbeat; headache, including migraine; excessive sweating; nausea; vomiting; constipation; appetite loss; weight changes: sedation; agitation; sleeplessness; and tremors.
Possible Side Effects (continued)
V Less common’. upset stomach, diarrhea, increased appetite, menstrual complaints, impotence, urinary difficulties, slowness of movement, salivation, muscle spasms, warmth, uncontrolled muscle movement, compulsion to move around or change positions, abnormal heart rhythms, blood-pressure changes, heart palpitations, fainting, itching, redness and rash, confusion, hostility, loss of concentration, reduced sex drive, anxiety, delusions, euphoria (feeling “high”), fatigue, joint pain, fever or chills, respiratory infection, and visual, taste, and hearing disturbances.
Drug Interactions
•    Phenelzine (an MAGI) increases the risk of bupropion side effects. Allow at least 2 weeks to pass between stopping an MAGI and starting bupropion. Serious side effects can occur.
•    Carbamazepine may reduce blood concentrations of bupropion.
•    People taking both bupropion and levodopa + carbidopa or amantadine experience increased side effects. People taking these drugs should have their bupropion dosage increased gradually.
•    Ritonavir may significantly increase bupropion blood levels and the risk of side effects.
•    Don’t mix bupropion with other drugs that increase the risk of seizures—including tricyclic antidepressants, haloperidol, lithium, loxapine, molindone, phenothiazine sedatives, and thioxanthene sedatives.
•    Combining bupropion with a nicotine replacement drug can cause high blood pressure.
•    Combining bupropion with warfarin can increase the risk of side effects.
•    Do not comtImP. INO~bujfin and Zyban, as they contain the same active ingredient.
•    Alcohol should be avoided by people taking bupropion.
Food Interactions
Bupropion may be taken with food if it upsets your stomach.
Usual Dose
Depression
Adult: 200-450 mg a day; normal daily dosage is 300 mg. Child (under age 18): not recommended.
Smoking Cessation
Adult: 150 mg twice a day. Begin treatment while you are still
smoking.
Child (under age 18): not recommended.
Overdosage
Symptoms of overdose are likely to include severe side effects, such as seizures—present in a third of overdoses—hallucinations, loss of consciousness, and abnormal heart rhythms. Overdose victims should be taken to a hospital emergency room at once. ALWAYS bring the prescription bottle or container.
Special Information
Do not stop taking bupropion without your doctor’s knowledge. Suddenly stopping the drug may cause withdrawal reactions and side effects.
Call your doctor if you experience agitation or excitement, restlessness, confusion, difficulty sleeping, anxiety, panic attacks, sleeplessness, irritability, hostility, aggressiveness, acting impulsively, a manic reaction, deepening depression, suicidal thinking, fast or abnormal heart rhythm, severe headache, seizure, rash, fainting, or any unusual or persistent side effect.
Bupropion may make you tired, dizzy, or lightheaded. Be careful when driving or doing any task that requires concentration.
Alcohol, sedatives, and other nervous system depressants increase the depressant effects of this drug. Alcohol also increases the risk of a seizure.
If you forget a dose, take it as soon as you remember. If it is almost time for your next dose and you take it several times a day, take 1 dose as soon as you remember and another in 3 or 4 hours, then go back to your regular schedule. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: The safety of using bupropion during pregnancy is not known. When your doctor considers this drug crucial, its potential benefits must be carefully weighed against its risks. Pregnant women trying to quit smoking should use non-drug methods until their pregnancy is completed.
Bupropion passes into breast milk. Nursing mothers who must use bupropion should use infant formula.
Seniors: Seniors with reduced kidney or liver function may require reduced dosage.

Generic Name
Brimonidine (brim-ON-ih-dene) (9
Brand Name  Alphagan P
Type of Drug Alpha agonist.
Prescribed For
Glaucoma and ocular hypertension (high pressure inside the eye).
General Information
Brimonidine tartrate stimulates alpha-2 receptors in the eye and lowers pressure there. The maximum effect occurs 2 hours after the drops are administered. Brimonidine reduces the amount of aqueous humor (liquid) produced inside the eye and increases the rate at which fluid flows out of the eyeball. That portion of brimonidine that finds its way into the bloodstream is broken down by the liver.
Cautions and Warnings
Do not use brimonidine if you are allergic or sensitive to any of its ingredients.
People with kidney or liver disease should use this drug with caution. People with cardiovascular disease should exercise caution with this medication because it can affect blood pressure. It should be used with caution in people with depression, cerebral or coronary insufficiency, and Raynaud’s disease. Brimonidine may cause fatigue, drowsiness, and dizziness or fainting when rising from a sitting or lying position.
Brimonidine’s effectiveness may decrease over time. Your doctor should check your eye pressure periodically to make sure the drug is still working.
Possible Side Effects
✓    Most common: dry mouth; redness, burning, and stinging of the eye: headache; blurred vision; sensation of something in the eye; drowsiness; and eye allergy and itching.
♦    Common: staining or erosion of the cornea, unusual sensitivity to bright light, eyelid redness or swelling, eye pain or ache, dry eye, respiratory symptoms, dizziness, eye irritation, upset stomach, weakness, abnormal, and muscle
✓    Less common: crusty deposit on the eyelid, eye bleeding, abnormal taste sensation, sleeplessness, eye discharge, high blood pressure, anxiety, depression, heart palpitations, dry nose, and fainting.
Drug Interactions
•    Brimonidine may enhance the effects of alcohol, barbiturates, sedatives, anesthetics, beta-blocking drugs, blood-pressurelowering drugs, and cardiac glycosides.
•    Tricyclic antidepressants can increase the breakdown of brimonidine.
e    Do not combine brimonidine with monoamine oxidase inhibitor antidepressants.
Usual Dose
Adult and Child (age 2 and older): 1 drop in the affected eye every 8 hours, 3 times a day.
Child (under age 2): not recommended.
Overdosage
Little is known about the effects of accidental ingestion. Victims should be taken to a hospital emergency room for treatment. ALWAYS bring the prescription bottle or container.
Special Information
If you wear soft contact lenses, wait at least 15 minutes between the time you put the drops in your eye and when you put your lenses in.
To prevent possible infection, do not allow the dropper to touch your fingers, eyelids, or any surface. Wait at least 5 minutes before using any other eyedrops.
Brimonidine may make you drowsy. Be careful while driving or doing anything else that requires concentration while you are taking this drug.
It is important that brimonidine be used according to your doctor’s directions. If you forget to administer a dose of brimonidine, do so as soon as you remember. If it is almost time for your next dose, skip the dose you forgot and continue with your regular schedule. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: A small amount ,31 brimonidine may 1pa’SSWAOThe circulation of the fetus. Pregnant women should use this drug with care.
It is not known if this drug passes into breast milk. Nursing mothers who must use this drug should consider using infant formula.
Seniors: Seniors may use brimonidine without special precaution.

Notes on dosage
In this dictionary of drugs, the doses, unless otherwise stated, are average daily doses for adults, and are normally given as divided doses at suitable intervals. An indication is given of those few drugs that are taken as a single daily dose, or where
the dose is based on the surface area of the body expressed as square metres (ml).
When a dose range is indicated, a small initial dose is often followed by gradually increasing doses according to need and response, but with long-acting drugs care must be taken to avoid excessive dosage, as such drugs may then accumulate in the body and have toxic side-effects. It should be noted that the side-effects of a drug may prevent the administration of an optimum therapeutic dose, and a recommended dose is often a compromise between activity and toxicity. The gap is sometimes referred to as the ‘therapeutic window’, and the wider the gap the safer the drug.
Dosage is also influenced by the route of administration, as oral doses are normally larger than those given by intramuscular injection, and the latter are in turn larger than those given intravenously. The weight, age and sex of a patient may also have to be taken into account when assessing dosage. Renal and hepatic
-impairment may require an adjustment of dose, whereas if tolerance to a drug
develops, a larger dose may be required to evoke an adequate response. Dosage
also requires particular care during pregnancy if toxic effects on the fetus are to be avoided and, ideally, no drug should be given in pregnancy unless the need outweighs the risks.
Doses for infants also present problems. Their drug-detoxifying enzyme
systems and renal excretory capabilities are not fully developed although,
paradoxically, they have higher metabolic rates than adults, and so may sometimes require an apparently relatively high dose of a drug.

Doses for the elderly also frequently require modification, as their reduced renal efficiency may cause accumulation of the drug and increase susceptibility to toxic effects, unless reduced doses are given. Elderly patients are, in any case, more susceptible to nephrotic drugs generally. Hepatic disease may also increase drug toxicity as liver enzymes play a major part in drug metabolism, and severe liver disease may give rise to a drug toxicity that might not otherwise occur. Hyperlipidaemic drugs, fusidic acid and some antifungal agents of the ketoconazole type are examples of drugs best avoided in hepatic disease. Multiple therapy may also lead to an increased and not always appreciated incidence of drug toxicity. For further information on these important aspects of drug dosage, a book for nurses on drugs and pharmacology should be consulted.

Controlled drugs
Drugs likely to cause dependence and misuse are referred to as ‘controlled drugs’ (CDs), as they are subject to the strict prescription requirements of the Misuse of Drugs Act, 1971, and are distinguished in this book by a dagger t. They include opium, morphine, heroin (diamorphine), pethidine and other synthetic, potent analgesics/narcotics, dihydrocodeine injection, barbiturates (except intravenous anaesthetics) and amphetamines. Controlled drugs can be supplied only on receipt of a hand-written prescription from the prescriber, giving full details of the patient, the drug, the form and strength of the prescription to be dispensed, and the total amount to be supplied expressed in both words and figures. Certain weak preparations of some controlled drugs, such as Kaolin and Morphine Mixture for diarrhoea, with which misuse is unlikely, are exempt from control, and can be obtained without prescription.

lithium succinate Lithium succinate appears to have sonic antifungal and anti-inflammatory properties, and is used as an 8% ointment for seborrhoeic dermatitis. (Ftalith).
lodoxamide A mast cell stabilizer similar to sodium cromoglycate. Used as eye drops (0.1%) in allergic conjunctivitis. (Alomide).
Dose: in acute diarrhoea, 4 mg initially, followed by 2 nig as required, up to a maximum of 16 ing daily. In chronic diarrhoea, 4-8 nig daily, but care is necessary in the elderly to avoid faecal impaction. Loperamide is not suitable for children under 4 years of age, nor in patients with liver disease, as it may cause undesirable sedation. (Iniodium).
loprazolam A benzodiazepine hypnotic used mainly in the short-term treatment of insomnia and nocturnal arousal. Dose: 1-2 nig at bedtime. Side-effects include drowsiness, dizziness, dry mouth and headache. See page 152 and Table 22.
loratadine An antihistamine with the general action of that group of drugs, but with reduced sedative side-effects.
Dose: 10 nig dailv. (Clarityn). See page I 10 and Table 2.
63
lofepramine An antidepressant of the irnipramine group, with similar actions and uses, but reduced sedative and anticholinergic side-effects.
Dose: 140-210 nig daily. (Gamanil). See page 128 and Table 11.
lofexidine A narcotic antagonist. It has a selective blocking action on brain nor-adrenaline, and is used for the rapid relief of opioid withdrawal symptoms associated with central sympathetic activity.
Dose: 200 pg twice a day, slowly increased as required over 7-10 days, before withdrawal over 2-4 days. Care is necessary in cardiac insufficiency and bradycardia. (Britl.olex).
lomotil A preparation of diphenoxylate with atropine, for the rapid control of diarrhoea. Dose: 2 tablets 6-hourly.
lomustine A slow-acting cytotoxic agent used in Hodgkin’s disease and solid tumours.
Dose: 130 ing/ni’body surface at intervals of (> 8 weeks. Side-effects, include anorexia. nausea, liver damage and niyelodeprm ion. Dosage should not be repeated until white cell and platelet counts have returned to an acceptable level. Reduced doses are given
when lomustine forms part of a multi-drug dosage scheme. (CCNU). See page 122 and Table 8.
loperamide A synthetic inhibitor of peristalsis.
lorazepam A short-acting anxiolytic/ hypnotic similar to diazepam, but less likely to cause next-day drowsiness. Dose: 1-4 mgdaily. It is also given in similar oral closes or by slow i.v. injection in doses of 50 pglkg for preoperative sedation and anuiesia. Occasionally used i.v. in status epilepticus in doses of 4 nig, but apnoea and hypotension are side-effects that may require resuscitation. fAtivan). See page 152 and Table 22.
lormetazepam A short-acting benzodiazepine hypnotic. It is useful in the treatment of insomnia in the elderly, but is less suitable for insomnia associated with early awakening.
Dose: 500 fig I nig at night. See page 152 and ‘]’able 22.
losartanV An angiotensin 11 receptor antagonist used in the treatment of hypertension.
Dose: 50ing daily The use of potassium-sparing diuretics should be avoided with losartan. It has the advantage of not causing the persistent dry cough associated with ACE inhibitors. (Cozaar). See page 148 and Table 21.
low molecular weight heparins See heparin.
loxapine Antipsychotic agent with the actions and uses of chlorpromazine. Dose: in acute and chronic psychoses, 25-50 mg daily, slowly increased as required. Maintenance doses range from 20-100111g daily. Side-effects are those of other anti-psychotic agents. but loxapine may cause nausea, vomiting and weight changes. f .oxapac). See page 168 and Table 30.
I Mob
magnesium hydroxide A mild antacid laxative, usually given in aqueous suspension as Cream of Magnesia, although tablet forms are also available. Cream of Magnesia is a useful antidote in mineral acid poisoning.
64
Lugol’s solution An aqueous solution of iodine 5% and potassium iodide 10%. Used in the preoperative treatment of t hyrotoxicosis.
Dose: 0.3-1 ml.
lymecycline A soluble complex of tetracycline and lysine. It has the action and uses and side-effects of tetracycline, but is absorbed more readily.
Dose: 800 mg daily. (Tetralysal).
typressin An analogue of vasopressin used to control the polyuria of pituitary diabetes insipidus.
Dose: 2.5-10 units several times a day by nasal spray. Side-effects include nausea and abdominal pain. I.ypressin has some vasoconstrictor properties, and desmopressin is sometimes prellcrred. (Syntopressin).
lysuride (lisuride) A bromocriptine-like drug for the treatment of parkinsonism. II acts by stimulating any surviving dopamine receptors in the brain.
Dose: 200 pg at night with food,
irk ceased at weekly intervals according to response up to a maximum of 5 mg daily. Side-effects include nausea, dizziness and initial hypotensive reactions which may affect driving ability. (Revanil). See
page 160 and Table 26.
magnesium sulphate Epsom salts. A powerful saline aperient, producing loose stools by preventing the reabsorption of water.
Dose: 5- 15 g before breakfast. Used externally for the treatment of boils and carbuncles as a paste with glycerin. A marked loss of plasma magnesium may occur after severe diarrhoea or drug-induced diuresis, and may require the i.v. infection of magnesium sulphate in doses based on the degree of hypoinagnesacmia. It has also been given i.v. in a dose of 8 mmol in the emergency treatment of severe;U’rhythinias associated with hypokalaemia.
magnesium trisilicate A white insoluble powder, with mild but prolonged antacid effects. It was formerly widely used in the symptomatic treatment of peptic ulcer;
now used chiefly for dyspepsia.
Dose: 0.3-2 g.
malathion An organophosphorus insecticide. Used as a lotion 0.5% for lice and scabies as alternative to lindane or carbaryl.
mannitol A sugar that is not metabolized, and is used mainly as an osmotic diuretic. Dose: (after a test dose of 200 mg/kg) 50-200 g by slow i.v. infusion over 24 hours. Mannitol has also been used by i.v. infusion as a short-term ocular hypotensive agent in the treatment of glaucoma. It is also useful in cerebral oedema, given by rapid i.v. injection in a dose of I g/kg as a 2044, solution.
macrolides A group of antibiotics that differ chemically from the penicillins, yet have a similar pattern of activity. They are active orally and are useful in the treatment of penicillin-sensitive patients. Erythromycin is the most widely used member of the group, with clarithromycin and azithromycin as more recent introductions.
magnesium carbonate A white, insoluble powder with antacid and laxative properties.
Dose: 0J-4 g daily.
maprotiline A sedative antidepressant with a general action similar to that of the tricyclic drugs represented by amitriptyline. Dose: 25-150 mg daily. If given at night as a single dose, the sedative action may reduce the need for other drugs. It has milder anticholinergic side-effects than some related compounds, although skin rash is more common. (I udionlil). See page 128 and Table 11.
mebendazole An anthelmintic effective against most intestinal worms.

Dose: 100 mg once for threadworm, and 100 mg twice daily for 2 days against other infestations. Generally well tolerated, but it should not be given to children under 2 years of age. (Verniox).
I Men
in oedematous states. A potassium supplement may be required. Care is necessary in renal and hepatic deficiency.
(KiYcaron). See page 148 and Table 21.
mebeverine An antispasmodic agent which, unlike the anticholinergic drugs, appears to have a direct action on the intestinal smooth muscle. It is useful in the treatment of gastrointestinal spasm and in the irritable bowel syndrome. Dose: .100 mg daily, before food. As with other antispasmodics, mebeverine should not be used in paralytic ileus. (Colofac).
medroxyprogesterone A synthetic progestogen.
Dose: in endometriosis 30 mg daily for 90 days; in dysfunctional uterine bleeding and secondary amenorrhoea: 2.3-10 mg daily for 5-10 days, starling on l6th-2 Ist day of cycle and repeated for 2-3 cycles. Large doses of 400 mg-1.5 g daily are given in breast, endometrial, prostate and other hormone-dependent cancers, or 250mg– I g weekly by deep i.m. inJection. (Farlutal; proves). Depot-proves is a long-acting product used by i.m. injection is a contraceptive. but only after fit][ counselling.
megestrol An orally active progestogen. It is used in oestrogen-dependent breast cancer, and acts by suppressing the uptake of oestrogens by the cancer cells.
Dose: 160 mg daily. Nausea and fluid retention with weight gain are occasional side-effects. (Megace). See page 122.
meloxicarn A recently introduced non-steroidal anti-inflammatory drug (NSAID) indicated in the short-term treatment of acute osteo-arthritis and the longer-term treatment of rheumatoid conditions. Dose: 7.5-15 mg once daily with food; half doses for the elderly. Suppositories of 15 mg are also available. The side-effects are basically those of the NSAI Ds in general. Meloxicam has a more selective action on cyclo-oxygenase, the enzyme involved in the biosynthesis of prostaglandins, and is less likely to cause gastrointestinal disturbance, but it has no cytoprotective action, and is not suitable for patients with peptic ulcer. (Niobic). See page 165 and Table 29.
65
mefenamic acid A non-steroidal anti-inflammatory analgesic agent used to relieve moderate pain in arthritic and rheumatoid conditions, and other states requiring mild analgesic therapy such as dysmenorrhoea. Dose: 1.5 g daily after food. Side-effects are drowsiness an(] haemolytic anaemia. Diarrhoea is an indication that the drug should be withdrawn. (Ponstan). See page 165 and Table 29.
rnefloquine A drug for the prophylaxis and treatment ofchloroquine-resistant malaria. Dose: lot- short -term prophylaxis 250 mg weekly, starting 1 week before exposure and for 4 weeks after return. Doses for treatment require specialist advice. Side-effects include gastrointestinal disturbances, dizziness and weakness. It is contraindicated in patients with a history of neu ro- psych iatric disturbance, and is not suitable for use in severe renal or hepatic impairment. (Lirium). See halofantrine.
mefruside A diuretic useful in the treatment of hypertension and oedema. Dose: 25-50 mg daily in the morning, according to need and response; 25-100 mg
melphalan An alkylating agent of the mustine type. Used mainly in myelomas, lymphomas and some solid tumours. Dose: 150-300 gg/kg daily for 4-6 days, repeated after 1-2 months. In myeloma it is also given by regional perfusion. The injection solution is highly irritant and contact should be avoided. Side-effects include myelo-depression, nausea, rash and pruritus. (Alkeran). See page 122 and ‘rabic 8.
menadiol A water-soluble form of vitamin K. Dose: 10 ing daily. (Synkavit) Phytorneii,dionc i.% now preferred.
menotrophin Human menopausal gonadotrophin containing follicle-stimulating hormone and luteinizing hormone. It is used in the treatment of anovulatory sterility. The dose depends on individual hormone assays and response. The use of the drug has resulted in multiple births. It is also given to males to stimulate spermatogenesis. (Humegon; Normegon).
menthol Colourless crystals obtained from oil of peppermint. Used as spray or drops for nasopharyngeal inflammation.

itraconazole An orally active antifungal agent used in the treatment of vulvovaginal candidiasis, pityriasis and tinea infections. Dose: 200 mg twice a day for the I -day treatment of vulvovaginal infections; 200 nig daily for 7 days in pityriasis, 100nig daily for 15-30 days in tinea infections. Side-effects are nausea and abdominal pain. Liver disease is a contraindication. Combined treatment with astiniazole or ierfenadine should be avoided. (Sporonox).
ivermeclin A fungal derivative effective against the microfilaria causing ‘river blindness. It does not kill either the adult worms or their larvae, but prevents the growth of the latter, and treatment must be continued until the adult worms die out. Dose: 150. (Mectizan).
kanamycin An aminoglycoside antibiotic now used mainly in gentamicin-resistant infections.
Dose: I g daily by i.m. injection; 15-30 rng/ kg daily by i.v. infusion. (Kannasyn).
kaolin Aluminium silicate. Used as an absorbent in diarrhoea, colitis, food poisoning, etc., often as Kaolin and Morphine Mixture.
Dose: 10-20 nil as required. It is also used externally as Kaolin Poultice to relieve the pain of sprains, etc.
kelocyanor A specific antidote for cyanide poisoning. See dicobalt edetate.
ketamine A short-acting i.v. anaesthetic with analgesic properties.
Dose: 1-2 mg/kg i.v. over I minute, repeated as required; 4-10 nig/kg by deep Lin. injection. It is used mainly in paediatric anaesthesia, and its analgesic action is also of value in neurodiagnostic procedures, and other painful investigations. Hallucinations may occur during the recovery period. (Ketalar).
ketoconazole A broad-spectrum, orally active antifungal agent. It is of value in systemic and deep mycoses, and in severe and resistant mycoses of the gastrointestinal tract and the vagina. It is also effective in severe mycoses of the skin, but it should be used only for superficial fungal infections not responding to other treatment.
Dose: 200 mg daily with ft)od, up to a maximum of 4tH) mg daily. Side-effects include nausea, rash and pruritus. It may cause hepatitis; liver function tests may be necessary if given for more than 14 (lays. (Ki-zoral).
ketoprofen A non-steroidal anti-inflammatory and analgesic agent of the ibuprofen type. It is of value in rheumatoid arthritis, gout, spondylitis and related conditions, and in dysmenorrhoea.
Dose: 100-200 mg daily with food;
100 Ing by suppository at night, 50-100 mg by deep Lin. injection 4-hourly. Care is necessary in peptic ulcer and hepatic disease. May increase the action of anticoagulants and other drugs bound to plasma protein. (AlrheLiniat; OrUdis; Orivail). See page 165 and Table 29.
ketorolacV A potent analgesic used for the short-term reliefofacute postoperative pain.
Dose: tO mg 4-6-hourly up to 40 ing daily for not more than 7 days; dose by deep i.m. or slow i.v. injection. 10 mg initially, then 30 mg 4-6-hourly up to 90 mg daily for not more than 2 days. Side-effects are numerous; see data sheet. (Toradol). Also used as eye drops (0.51)/0 to reduce pain and inflammation after ocular surgery. (Acular).
keftotifen An antihistamine that may also have some of the properties ofsodium cromoglycate. It is used in the prophylactic treatment of asthma.
Dose: 4 mg daily with food, continued lor ,sine weeks. Other anti-asthmatic therapy should be continued for at least 2 weeks to ensure maintenance of control. Side-
effects include sedation and dryness of the mouth. (Zadi(en). See page 110 and Table 2.
Kogenate A recombinant form of the human blood Factor Vill, given i.v, as replacement therapy in the treatment of haemophilia A.

labetalol A beta - adrenocepior blocking agent with some alpha-blocking activity. Like related drugs, labetalol is indicated in all types of hypertension, including that following myocardial infarction.
Dose: 200 mg daily initially, with food, slowly increased up to a maximum of 2.4 g daily; by i.v. injection 50 mg repeated as required; for the rapid control of the hypertension of pregnancy 20-160 ing by i.v. infusion hourly. It should be used with care in asthma and heart block. Side-effects include weakness, nausea, bradycardia and postural hypotension. Liver damage has been reported. (Trandate). See page 148 and `fable 21.
lacidipine A calcium channel blocking agent with the actions and uses of nifedipine. In hypertension it is given as a single morning dose of 2 nig with food, increased up to 6 mg as the response develops over 3-4 weeks. Half doses in hepatic impairment and the elderly. Early chest pain is an indication that the drug should be withdrawn. (Motens). See page 148 and Table 21.
lactilol A semi-synthetic sugar that is not absorbed orally, and acts as an osmotic laxative by retaining water in the intestinal tract. Also inhibits ammonia-producing organisms, and is of value in hepatic encephalopathy.
Dose: as laxative 20 mg daily mixed with food, together with 2 glasses of water. Dose in hepatic encephalopathy, 500700 inglkl; daily.
lactulose An osmotic laxative. See lactilol.
laevulose Fructose. A sugar sometimes given i.v. as an alternative to glucose.
in the brain by inhibiting the influx of sodium ions. It is used both as primary treatment and as additional therapy (often with sodium valproate) for seizures not fully controlled by other drugs.
Dose: 25 ing daily initially for 14 (lays, slowly rising to 100-200 nig daily. See data sheet for details of combined therapy. (Limictal). See page 136 and Table 15.
lanolin See wool fat.
lansoprazole An inhibitor of the enzyme 11, K’-AI’Pase (the proton pump) used in the treatment of peptic ulcer.
Dose: 30 ing daily for 4-8 weeks. (Luton). See orneprazole, page 162 and Table 27.
Lasser’s paste A stiffointment containing zinc oxide, starch and white soft paraffin with 2% salicylic acid. Used as protective in eczema.
latanoprost A prostaglandin alpha-analogue used once daily as eye drops (0.00596) in glaucoma. It increases the outflow of the aqueous humour, whereas other agents reduce its secretion. Continued use may cause changes in eye colour. (Xalantan). See page 138.
lenograstimV A recombinant form of the granulocyte colony stimulating factor (G–GSF) that governs the production of neutrophils. It is used as supplementary treatment in cancer chemotherapy to stimulate neutrophil production in drug induced neutropenia.
Dose: under expert supervision by s.,:. injection, in daily doses of 150 pg/m2 Until neutrophil count is satisfactory. Also used i.v. after hone narrow transplantation. (Granocyte). See filgrastim and rinolgraniostirn. See page 122 and Table 8.
61
lamivudine An antiviral agent that acts like zidovudine by inhibiting reverse transcriptase, an enzyme essential for DNA formation and viral replication. It is used in HIV infections.
Dose: 300 ing daily, preferably with food, and combined with a protease inhibitor. (Epivir). See page 144 and Table 19.
lamotrigine\” An anti-epileptic that alleviates the imbalance of neurotransmitters
letrozoleV A non-steroid inhibitor of aromatase, the enzyme that controls the conversion of testosterone to oestrogen. It acts as an anti-oestrogen and is used in advanced breast cancer that has not responded to tamoxifen or similar therapy. Dose: 2.5 mg once daily. Side-effects include musculoskeletal pain, arthralgia and hot flushes. (Fernara). See page 122 and Table 8.
leucovorin See folinic acid.

leuprorelin A synthetic hormone that indiandrogen and oestrogen production by inhibiting gonadotrophin activity. It is used in endonietriosis and
advanced prostatic cancer.
Dose: 3.73 rig by s.c. or i.m. injection every 4 weeks. Side-effects are impotence, flushing and local irritation. There may be an initial and temporary increase in pain. The injection site should be varied. (Prostap SR). See buserelin, goserelin, page 122 and Table 8.
levamisole A single-dose (150 mg) anthelmintic of value in round worm (Ascaris). It is also effective against hookworm (Ancylostoma and Necator). Dose: 2.5-5 mg1kg daily for 2-5 days.
levobunolol A beta-blocker used as eye drops 0.5% in glaucoma. (Betagaii). See carteolol.
levocabastine An antihistamine used as drops (0.05% twice a day in the symptomatic treatment of seasonal allergic conjunctivitis and rhinitis. (Livostin).
levodopa An amino acid that is converted to dopamine in the body. It is used in the treatment of Parkinson’s disease, which is associated with a reduction in brain
dopamine levels due to degeneration in the substantia nigra, thus causing an imbalance in the neurohorinonal system of the brain. Levodopa is essentially replacement therapy, but as an oral dose is metabolized to some extent in the peripheral circulation It is often given with art enzyme inhibitor such as benserazide or carbidopa. Combined therapy permits a larger dose of active drug to reach the cerebral tissues, and at the same time reduces some of the general side-effects of levodopa.
Dose: 125-300 mg initially, increased according to need and response. Side-effects include nausea and cardiovascular disturbances, but psychiatric side- effects may be (lose limiting. Close angle glaucoma is a contraindication. See page 160 and ‘I able 26.
lignocaine (lidocaine) A local anaesthetic widely used for infiltration anaesthesia as a 0.25-0.5% solution, usually with adrenaline, as well as for epidural, caudal and nerve block anaesthesia. It is the local anaesthetic present in many dental cartridges. A 2-4% solution is used for
surface anaesthesia, and a 2% gel is used to relieve the pain and discomfort of catheterization, but rapid absorption may cause side-effects. Lignocaine is also the drug of choice in the control of ventricular tachycardia following myocardial infarction. Dose: 100 mg as an i.v. bolus, followed by a dose of 4 mg/min by i.v. infusion for 3(t minutes, with subsequent doses of 2 inghnin. Side-effects include confusion, convulsions, bradycardia and I p hy oten- sion. (Xylocard). Emla cream contains lignocaine and prilocaine. It is used for local anaesthesia and to relieve the pain associated with injections, especially in children. It is applied under an occlusive dressing 1-2 hours before the injection.
lindane A pesticide used as a 1% solution for the treatment of scabies.
liothyronine (tri-iodothyronine) A thyroid hormone with it rapid action, an(] probably a precursor of thyroxine. It is given orally in severe hypothyroid conditions when a rapid action is necessary, and by injection in hypothyroid coma. Dose: 20-60 fag daily; 5-20 pg i.v.
0 ertroxin).
liquid paraffin A lubricant laxative and faecal softener.
Dose: la-mj, nil. Its extensive use is now
discouraged, as it may cause granulomatous reactions and reduce the absorption of fat-soluble vitamins.
lisinopril An ACE inhibitor similar to enalapril, but with it longer action that permits the use of a single daily dose. Dose: in the treatment of hypertension, (loses of 2.5 rig daily initially, slowly increased according to response up to 10-20 mg daily, occasionally up to 40 mg. In patients receiving diuretics, such Ilierapy should be withdrawn for 2-3 days before lisinopril therapy and resumed later if necessary. (Carace; Zesiril). See
page 148 and Table 21.
lithium carbonate Lithium carbonate and itratearc used for their mood-regulating action in the prophylaxis and treatment of mania and depressive illness, but the mode of action is not known. The therapeutic/ toxic range of lithium is very narrow, and continuous control of the plasma/lithium level is essential to avoid the many side-effects and hazards of therapy.