Posts Tagged ‘Antihistamine’

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.

Alka-Seltzer
We used to think that Alka-Seltzer was one of the more irrational remedies in the drugstore trileptal peidatric . That is because it contains both aspirin and bicarbonate of soda requip corporation . In the original edition of The People’s Pharmacy, published more than 30 years ago, we-said, “If you have indigestion or upset stomach, the last thing you want is aspirin included in the tablet percentage caffeine content in tea . That is like trying to put out a fire with gasoline too much testosterone .”
We may have been wrong effexor and alcohol . It’s not just that millions of people have used this product successfully for decades natural alternative for spironolactone . This tablet of aspirin (325 milligrams), bicarbonate of soda (1,916 milligrams), and citric acid (1,000 milligrams) is converted into sodium citrate when it fizzes in a glass of water clindamycin dosage for feline toxoplasmosis . This antacid seems to provide fast and effective relief of “acid indi-gestion, upset stomach, and heartburn syrup ranitidine .” What we don’t know is whether Alka-Seltzer is any more effective than a half-teaspoon of baking soda in 4 ounces of water when it comes to
heartburn symptoms lexapro high snorting .
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G orgasm dj caffeine . Allow me to tell you about my experience with heartburn, which I have had for a very long time what is digoxin poison arrows . Last year I started using a toothpaste which contains baking soda clomid and breast tenderness . Since then my heartburn is gone medication and tramadol hcl and information . If I change toothpaste the heartburn comes back, so it’s not a coincidence tablet viagra .
I brush my teeth three times a day online steroids nolvadex . Even though I don’t swallow the toothpaste I think a little of it gets into my stomach and the baking soda neutralizes the stomach acid loratadine condition . Could that be true?
A lithium breast feeding . Baking soda (half a teaspoon in 4 ounces of water) is a tried and true remedy for heartburn lithium overdose . Alka-Seltzer, long used for stomach upset, contains sodium bicarbonate, the compound in baking soda accutane and pearly penile papules . Whether you’d get enough baking soda from your toothpaste to actually neutralize stomach acid is hard to tell, but thanks for sharing your success clarisa nora doctorovich viagra .
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Antacids
For the occasional bout of heartburn, antacids work surprisingly well jeff johnson viagra . In fact, they may be better than pricey acid suppressors digitek 0.25 mg . That’s because it takes hours to shut down acid production zoloft duration of side effects . If you go to the ballpark and gobble down two chili dogs, chase them with beer, and have Cracker Jack for dessert, you don’t want to wait hours for your acid suppressor to go to work insulin resistance glucophage diet . Popping a Turns E-X, Maalox Quick Dissolve, or Rolaids Extra Strength can be safe and effective lexapro message board side effects . That’s because they all contain calcium carbonate, which neutralizes stomach acid lithium polymer batter prices . There are lots of such products to choose from, so pick something that tastes tolerable and isn’t too pricey lithium metal mining .
Calcium Carbonate
Calcium carbonate is inexpensive, fast-acting, and effective addiction and wellbutrin . In addition, you get extra calcium allera with augmentin 875 mg .
Downside: Constipation is fairly common if used regularly beneficial facts about lithium . Cost: A bottle containing 160 tablets of Turns Ultra (1,000 mg calcium carbonate per pill) costs $8 to $10 chloroquin chloroquine . That should be enough to last 2 to 3 months or much longer if used occasionally viagra and heart medicines .
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0 better for gps lithium or nimh .1 have never seen you recommend calcium carbonate for heartburn order avapro . Why? You keep suggesting sodium bicarbonate, even though it introduces too much sodium into the body kamagra in berlin . Calcium carbonate, on the other hand, provides much-needed calcium depakote for headaches . What is your problem?
A propecia cost . We agree that calcium carbonate (Caltrate, Titralac, Turns, etc generic equivalent of lipitor 10mg .) is an excellent, inexpensive antacid that can quickly ease heartburn and supply extra calcium adverse side effects of premarin . We’ve recommended it for decades demeclocycline .
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Don’t forget Pepto-Bismol kroger pharmacy price cialis . We think the familiar pink liquid also has some benefit caffeine free unsweetened tea . The active ingredient, bismuth subsalicylate, can be found generically in store brands and in Maalox Total Stomach Relief Liquid butalbital apap caffeine tabs drug . While not a very powerful antacid, Pepto does seem to calm the fire of heartburn through mechanisms we may not understand very welt dosage of amoxil for young child . Perhaps it coats the esophagus and helps reduce the irritating effects of nid reflux will help the prozac work quicker . There are even decent data to suggest that bismuth subsalicylate can help against traveler’s diarrhea topamax eating . When it is combined with antibiotics, Pepto-Bismol can help fight infection by the bacterium Helicobacter pylori, which leads to gastritis and stomach ulcers tetracycline antibiotcs .
Acid Suppressors
The mainstays for treating indigestion or heartburn are acid suppressors celexa patient ratings . That’s because pharmaceutical companies have become extremely adept at creating such drugs ibuprofen side effects on liver . In the 1960s a team of scientists led by an extraordinary researcher (Sir James Black) hypothesized that if they could block specialized histamine receptors (H2 receptors) in the stomach, they could reduce acid production toprol vs metoprolol .
Histamine2 Antagonists
When drug companies thought about antihistamines, they focused on relieving allergy symptoms in the nose cialis cheapest price . But Sir James thought he could come up with a new kind of antihistamine that would work primarily in the stomach tetracycline and antacids studies . In 1972 the breakthrough was announced, and in 1977 cimetidine (Tagamet) became the first H, antagonist launched in the United States dosing amounts before surgery promethazine . It went on to become one of the most successful drugs in history caffeine drink energy in . Like its successor ranitidine (Zantac) new zealand pharma amitriptyline . Tagamet was one of the first billion-dollar babies (with annual sales of greater than $1 billion) antiobiotics for people allergic to penicillin .
Although these acid suppressors were initially prescribed to help heal stomach ulcers, they rapidly became popular as super antacids xenical online pharmacy phentermine meridia . Any amorphous abdominal pain was treated with an H, antagonist clomid and ovulation test kits . Their success was noted by other drug companies, and “me-too” drugs like famotidine (Pepcid) and nizatidine (Axid) soon appeared benzoyl peroxide tinted acne lotion . Such drugs were perceived as so safe that once they lost their patent protection, the FDA approved them for over-the-counter sale ultram online prescriptions . Although these drugs can relieve heartburn by making stomach contents less acidic, they are not as fast-acting as antacids advantages of wellbutrin .
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Q zyrtec swelling feet . 1 had two hip replacement surgeries in my mid-forties ramipril dosage color . I was given cimetidine (Tagamet) to prevent stress ulcers post-op for the first one and it gave me very nasty hallucinations what is the drug carvedilol . I had already withdrawn myself from the pain medications, and the staff assured me nothing I was taking could induce these things generic alternitive for vytorin . When the surgeon stopped the Tagamet, the nasties went away abilify prescribing .
For the second operation, I listed cimetidine as a drug problem, but they gave it to me anyway boniva alert . I knew within an hour something was seriously wrong and fortunately didn’t have to take any more wellbutrin generic names .
I was assured that the incidence of problems is low, but I’d hate for others to go through what I experienced danger zocor .
A eli lilly cialis tadafil . Cimetidine (Tagamet) has been linked to hallucinations, depression, confusion, and disorientation ciprofloxacin and the oral mucosa . Such psychological side effects are relatively rare, but people need to know that they can occur nitrix interaction with cialis .
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There are not enough data to recommend one H2 antagonist over another chloramphenicol 1 equine eye medication . They are all roughly comparable in effectiveness building muscle testosterone . Side effects are generally uncommon pregnant on paxil . Cimetidine may cause a slightly higher incidence of headache, sexual difficulties, and mental confusion or disorientation than some of the other drugs in this class maxalt info . This usually only happens at high doses or in older or sicker patients trane lithium bromide chillers . Other possible side effects associated with HZ antagonists may include dizziness, fatigue, diarrhea, and constipation asprin and pregnancy .
Interactions are a bigger issue with medications like Cimetidine norethindrone acetate pregnancy test . This acid suppressor can cause mischief when combined with many other drugs, including alcohol atrovent arachides . It is crucial that anyone using such acid suppressors check with both a physician and a pharmacist for any incompatibilities claritin million .
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Q zoloft reaction fatigue . I have been on either Tagamet or Zantac for years warfarin effects mood . I have a hiatal hernia that causes severe heartburn does omeprazole help in stopping rebleeding .
Over the last 2 years I find that ( start to feel “tight” after a single beer prozac overnight no prescription . I used to drink two or even three beers on a hot day after 18 holes of golf with no problem penicillin and without prescription . Now with just one beer I feel too impaired to drive fortamet glucophage lawsuit .
Could these heartburn medicines have that effect? I used to be able to hold my booze with the best of them dystonic reaction to geodon . Because of this I am loath to even take a drink at a party medication warfarin .A using expired asprin . You have raised a fascinating issue tetracycline neomycin bacitracin and prednisolone infusion . More than a decade ago, alcohol expert Charles Lieber, MD, reported that cimetidine (Tagamet) and ranitidine (Zantac) could increase blood alcohol concentrations in susceptible people singulair cramps . He told his colleagues that such interactions “may result in unexpected impairment to perform complex tasks, such as driving maggi santarlasci vitro desloratadine . Thus, patients treated with these drugs should be warned of this possible side effect nortriptyline withdrawal symptoms .”403
More recently Dr treatment for amoxicillin rash . Lieber warned, “Under conditions mimicking social drinking, ranitidine increases blood alcohol to levels known to impair psychomotor skills needed for driving high blood pressure wellbutrin .”404
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If we had to pick one over-the-counter (OTC) acid suppressor to relieve heartburn, we would probably opt for Pepcid Complete allegra d xr .The reason is that this medication combines the H, antagonist famotidine (10 milligrams) with calcium carbonate (800 milligrams) and magnesium hydroxide (165 milligrams) astrazeneca atacand . Putting these three ingredients together means that you get the immediate benefit of fast-acting antacids (calcium carbonate and magnesium hydroxide) plus longer-acting acid suppression with famotidine antihistamines claritin .
Proton Pump Inhibitors (PPIs)
The most powerful acid suppressors available are called proton pump inhibitors (PPIs) diflucan and amoxicillin 500 .This class of medications has been
*** Pepcid Complete
Pepcid Complete combines immediate action with longer-lasting acid cQMv6 is feldene an nsaid .
Downside: Side effects are uncommon but nevertheless, be vigilant for allergy, jaundice, headache, constipation, dizziness, or diarrhea seroquel withdrawals weakness .
Cost: $17 to $20 for 50 pills sinemet crushing tablet with applesauce . Should last several months using motrin and tylenol for kids . Short-term use should be safe apri bondurant . Long-term use should be approved and monitored by a physician mining of lithium .
incredibly successful for the pharmaceutical industry, which has done well with graphic commercials featuring a cartoon stomach or “The Purple Pill chlorpromazine hcl .” Over 70 million prescriptions are written annually for these drugs at a cost of almost $10 bil lion high testosterone test in women . 40
Starting with omeprazole (Prilosec), drug companies have created a series of compounds that are capable of dramatically changing the acid environment of the stomach viagra medi tabs . Such action is extremely helpful for curing ulcers depo provera injection weight gain . It can also help relieve reflux has anyone tried smoking prozac . But there is growing concern that long-term acid suppression may have some unexpected and potentially unpleasant consequences is prednisone acidic .
Acid is important in the stomach does fosamax cause dementia . For one thing, it creates an inhospitable environment autoimmune hepatitis azathioprine . Germs have a hard time surviving in acid metronidazole cat conditions . Studies published in the Journal of the American Medical Association have suggested that constantly suppressing stomach acid may increase the risk of pneumonia and severe infectious diarrhea generic allegra .”-407 Presumably, this is because bacteria not killed by stomach acid can work their way up through the esophagus and get into the lungs or work their way down and infect the lower digestive tract dilantin alcohol . Such serious infections can be life threatening lithium manganese battery charging high temperature .
PPIS AND CANCER
The really big elephant in the room with the PPIS is a fear of cancer atenolol hydrochlorot interactions . For years there has been a quiet controversy brewing regarding a possible relationship between acid suppression and the risk of cancer amiodarone hcl . In 1985 we wrote: “Scientists fear that if bacteria set up housekeeping in your stomach, they can go to work converting nitrate to nitrite prednisone two parent dose . drug side effects ultram er . what is nifedipine er . effexor and wiehgt loss . Nitrate is a chemical which can come from food, water, or even saliva; by itself it
PROTON PUMP INHIBITORS
• Esomeprazole (Nexium)
• Lansoprazole (Prevacid)
• Omeprazole (Prilosec)
• Pantoprazole (Protonix)
• Rabeprazole (Aciphex)
probably does little harm amoxicillin dosage treatment course for pneumonia . But if nitrate is turned into nitrite by bacteria, all hell can break loose, because the end product can be something very bad indeed—nitrosamines vytorin muscle cramps . Nitrosamines are among the most potent cancer-causing chemicals
known musc nexium protocol .
Over the last several decades there has been an alarming increase in what was once a rare kind of esophageal cancer atrovent nasal . Adenocarcinoma of the esophagus has turned into an epidemic cheap order prescription ultram .’ Gastroenterologists are mystified about the causes of this deadly condition lithium battery rechargers . Some have told us that it’s brought on by the American diet buy discount buy flomax online . Others blame it on reflux and insist that PPIs can solve the problem by reducing acid exposure to delicate tissues apcalis erectalis kamagra plus . Has reflux really increased that much in the last couple of decades, and if so, why’?
A provocative editorial that appeared in the American Journal of Gastroenterology entitled “Acid Suppression and Adenocarcinoma of the Esophagus: Cause or Cure?” lays out the confusion and the contradictionS interaction of amiodarone and zorcor .410 Thomas Schell, MD, points out that “decreasing acid reflux by the use of PPIs
*** Prilosec OTC (omeprazole)
For years Prilosec was the most prescribed drug in the country clindamycin medication 25mg . The active ingredient, omeprazole, did not lose its effectiveness when it went over the counter synthesis of paroxetine .
Downside: Side effects are uncommon, but headache, diarrhea, rash, cough, and upper respiratory tract infections have been noted chemical make-up of augmentin . Rare but very serious side effects may include blood disorders, inflammation of the pancreas, liver problems, and severe skin reactions warfarin and vitamin d .
Special Cautions: Use Prilosec OTC for only 2 weeks at a time loratadine breastfeeding . According to the information on the label, you can repeat another 14-day course alter 4 months have elapsed u 2899 viagra . Prolonged use of prescription proton pump inhibitors may require vitamin 8,2 supplementation (up to 1 milligram daily) canada health advisory prozac . Extra vitamin C (500 milligrams) and vitamin E (200 IU) may reduce the possible formation of carcinogens (nitrosamines) simvastatin oral gavage .
Cost: $30 to $40 for 42 pills (1 year’s supply)
might help to slow or halt this deadly progression zoloft and buspar free .” But he also reminds his colleagues that lack of acid in the stomach (achlorhydria) “is a known risk factor for adenocarcinoma of the stomach claritin health alternative .” Dr caffeine in youth . Schell notes that nitrosamines formed by bacteria in the stomach “would also expose the esophagus to these carcinogens andriol for low testosterone in women .”
There are three other disconcerting problems linked to long-term use of PPIs tablissement services sp cialis s . When the stomach ceases to produce acid, it senses that something has gone terribly awry and it tries desperately to get acid-producing cells working again taking flagyl and consuming alcohol . It does so by making a compound called gastrin, which aids in digestion and also triggers the production of stomach acid dizziness after taking cymbalta . When acid levels do not rise, gastrin production continues indefinitely, often at very high levels chemical properties of asprin .
Imagine that the float device in your toilet was stuck in the “on” position ovral l vietnam . The water would keep running forever, which is what happens with gastrin in your stomach lasix intramuscular . There is no acid “float” to turn off the gastrin supply breast paint after getting off effexor .
Too much gastrin is not a good thing buspar sexual dysfunction . In fact, there is increasing concern that gastrin may stimulate abnormal cell growth throughout the digestive tract, increasing the risk of cancer-, of the stomach, pancreas, and colon, as well as the esophagus cipro thompson ct .411,412
Another concern about long-term treatment with PPIs has to do with nutrient absorption digoxin toxcicity . It is harder to absorb vitamin BQI iron, and calcium when there is not enough acid in the stomach what is telmisartan . Older people may have some trouble getting enough vitamin B12 2 or iron under normal conditions antimicrobial properties of ampicillin . With a PPI on board, this may be an even greater challenge levofloxacin renal impairment . 413 A vitamin B12 deficiency can lead to some very serious consequences fosamax and contraindications . Symptoms may include anemia, fatigue, nerve damage (burning, tingling, weakness, or numbness in the hands and feet), difficulty in sensing vibration, unsteadiness, shortness of breath, and psychological side effect’S, Depression, confusion, and poor memory may be mistaken for early-onset Alzheimer’s disease definition hydroxyurea .
* 0 0
Q valtrex and edema . 1 have taken Prilosec and then Prevacid for years to treat severe heartburn legal issues paxil . When I began to suffer weakness and confusion, I started taking 1,000 micrograms of vitamin B,, daily drug-resistant gonorrhea spreading rapidly cipro . Within a relatively short time, the horrible symptoms began to subside fda reports strattera vision loss .
My doctor does not really see the relationship, but I sure do! What can you tell me about this side effect?
A acyclovir and constipation . Long-term suppression of stomach acid can sometimes interfere with efficient absorption of vitamin B12 high blood pressure medicine norvasc tab . This nutritional deficiency can cause nervous system problems, which may show up as insomnia, memory problems, depression, burning tongue, sore mouth, difficulty walking, and tingling or numbness in feet or fingers fda lipitor .
One reader reported a conversation with a nurse who noticed an amazing improvement in a woman with dementia after a vitamin B12 deficiency was discovered and treated pennsylvania exelon carin anders .
0 0 *
This vitamin deficiency often appears very gradually zoloft and sweating . Patients may describe complaints such as mental fuzziness, a sensation of burning on the tongue, or poor coordination for months or even years before a proper diagnosis is made warfarin country origin . Anyone who has been on PPIs for many months (or years) should request a blood test for iron and vitamin B,2 synthesis metronidazole . It’s not enough to just look for vitamin B,,, though tougera clindamycin phosphate . Be sure to be tested for serum cobalamin (that is vitamin B,2) and methylmalonic acid (MMA) fosamax and heart attack . When MMA is elevated and cobalamin is low, that is an indication of a probable vitamin B,, deficiency homemade cialis .
PPI ADDICTION?
Another unspoken concern among some gastroenterologists is PPI-induced “physical dependence lipitor celecoxib combo limits cancer .”414 That’s a nice way of saying addiction isotretinoin for ichthyosis treatment . Now, no one is getting high on PPIs ranitidine tachycardia . But some pcgpke dysreflexia after ditropan . may tl)d it difficult to quit taking such medications once they start down the long and winding road of acid suppression montelukast side effects .
Here’s the sad story leukopenia and sporanox . Proton pump inhibitors like omeprazole (Prilosec), esomeprazole (Nexium), and lansoprazole (Prevacid) are so effective at shutting down acid production that the body seems to rebel diflucan treatment length . As previously noted, gastrin is produced in large quantities, and it stimulates cell growth augmentin cheap . These are cells that want to make acid, but PPIs prevent them from doing their job inability to smell and testosterone levels . They proliferate, though, and if the PPI is stopped, they start churning out acid to is higher dose of effexor better . make up for lost time zyrtec and dose and weight . The consequence is something called “rebound acid hypersecretion cipro plue bactrim for diverticulitis .” This means the body really starts generating excess acid when these drugs are discontinued low cost flomax .
What’s so insidious is that it takes several days for the effect to show up using strattera with fluoxetine . So someone might be fine for a while, but within 2 weeks of stopping a PPI there is maximal acid production from stomach cells dexamethasone drug dosage . 5 And here’s the kicker prepare tramadol for injection . This rebound hyperacidity effect lasts for more than 2 months could amoxicillin cause hives .416
Dear reader, this is nothing short of astonishing try prilosec $20 coupon . Think about it for just a moment bupropion marijuana . Tens of millions of people have spent billions of dollars on acid-suppressing medications for years and years to soothe the fires in their upper gastrointestinal tract meloxicam side affects and dangers . But Mother Nature does not forgive or forget zocor bottom feet hurt . No sooner are the drugs discontinued than she turns on the acid-making machinery and puts the pedal to the metal for months metoprolol succinate tabs .
Within a few days of stopping the medicine, someone with indigestion or heartburn is likely to feel the effect lotensin aciphex phentermine pharmacy chicago . Not surprisingly, the first thing people experiencing rebound hyperacidity are likely to do is reach for their PPI dr mercola and synthroid . According to Norwegian researchers, “Discontinuing treatment may prove difficult in some patients even if the dose of proton pump inhibitor is slowly tapered kamagra jelly pharmacy . melatonin amlodipine . talking clozapine chat . natrural viagra . In these cases the use of high doses of 1-12-receptor antagonists or antacids should be considered stopped taking clomid .”‘ 17 From a drug company’s perspective, PPIs could be the perfect pills lamictal and bi-polar side effects . As long as people take them, they feel pretty good prescriptions lexapro and effexor . But if they stop, they could be punished for a very long time lithium formate amino acids . That’s strong motivation to beg the doctor for more medicine—indefinitely equine testosterone and estrogen levels .
So, what’s a person to do? Well, our recommendation would be to be cautious half-life of ibuprofen . These drugs are great for short periods of time kaufen levitra . They control symptoms of heartburn quite well and have relatively few side effects caffeine free coca-cola . If a doctor recommends that you take a PPI for longer than 2 or 3 months, though, be prepared for rebound hyperacidity when you stop the medicine analytical methods caffeine .418
Conclusions
Persistent symptoms of pain, burning, or pressure behind the breastbone should be investigated by a doctor to rule out a seri-ous condition synthroid atrial flutter . For an occasional attack of indigestion, however, there are lots of things you need to consider amaryl generation . Before pulling out the heavy artillery of acid-suppressing drugs, there are many options to contemplate caffeine 50mg . Here is a quick snapshot:
• Avoid foods or drugs that might make the lower esophageal sphincter lazy and let gastric juice creep back into the esophagus side effects of duricef . There are few good studies, but some possible culprits include chocolate, carbonated beverages, smoking, diazepam, and progesterone can taking effexor cause anxiety .
• Cut back on Garbs the history of pseudoephedrine . Although the data are preliminary, there is some suggestion that the typical high-carbohydrate American diet may be contributing to reflux wellbutrin sr 100mg discussion boards .
• Keep your eyes on itopride cheap rimonabant without a prescription . This prescription drug works differently than acid-suppressing drugs to relieve indigestion and heartburn dexamethasone mode of action . Its success in Japan and India and a fascinating report in the New England Journal of Medicine (February 23,2006) have us looking forward to FDA approval lipitor bilirubin . •Saliva is the body’s natural buffering agent and fire extinguisher for heartburn lithium levels affected by dehydration . Chewing gum or sucking on hard candy can help relieve symptoms prescription sildenafil .
• Chamomile or ginger tea also can wash acid out of the esophagus and back into the stomach where it belongs hydrocodone tramadol carisoprodol . These traditional remedies also may help calm an upset stomach penile discharge flagyl .
• Home remedies such as sipping diluted apple cider vinegar or even swallowing yellow mustard may help side effects on lamictal . Each person is different, though, so trial and error will be the only way to find out if a home remedy will work for you p1p synthesis of pseudoephedrine .
• Baking soda remains a time-honored solution for occasional heartburn inhalation dexamethasone . Dissolve ‘47 teaspoon of powder in 4 ounces of water bose wave radio testosterone . For those on sodium-restricted diets because of congestive heart failure or high blood pressure, this is not an option amitriptyline lansoprazole .
• If you need an antacid, calcium carbonate remains one of the cheapest and most effective in the pharmacy decongestant with atenolol . Turns Ultra contains 1,000 milligrams of calcium carbonate and is a cost-effective option clomid vitex .
• In our opinion, a sensible first choice for an OTC acid-suppressing drug is Pepcid Complete ketoconazole used for . It combines the immediate action of antacids (calcium carbonate and magnesium hydroxide) with the longer-acting H2 antagonist famotidine how to increase free testosterone . Short-term use should be safe how much clonidine should i take .
• If you feel you must take a powerful acid-suppressing PPI, we would opt for Prilosec OTC safer alternitives to ibuprofen . If you have great insurance coverage, you might save money if your doctor prescribes generic omeprazole instead used to make testosterone . We think a little vitamin insurance is appropriate whenever acid-suppressing drugs are taken for any length of time (vitamin B12, vitamin C, and vitamin E) wellbutrin xl and weight lose .

abciximab A monoclonal antibody that inhibits platelet aggregation and thrombus formation. Used as an adjunct to heparin in percutaneous transluminal coronary angioplasty under expert supervision. (ReoPro).
glaucoma, as it decreases intraocular pres    9 sure by reducing formation of aqueous humour. It has also been used in epilepsy. Dose: 250 nig-1 g daily. In severe conditions it may be given in similar doses by i.v. injection. Side-effects are drowsiness, gastrointestinal disturbances and paraesthesia. (Dianiox). See page 138 and Table 16.
acamprosate An analogue of GAGA used in alcoholism. It assists in the maintenance of abstinence in alcohol-dependence, but prolonged treatment for a year may be required. Dose: 666 mg 3 times a day. (Campral).
acarbose An inhibitor of alpha-glucosidase, the enzyme that converts dietary carbohydrates to soluble sugars. Used in noninsulin-dependent-diabetes to reduce hyperglycaemic peaks after food. Dose: 50 mg daily initially, rising to 150 mg daily if required. Side-effects are flatulence and diarrhoea; a hypoglycaemic reaction can be treated with oral glucose. (Glucobay). See page 131 and Table 13.
ACE inhibitors See angiotensin-converting enzyme inhibitors.
acebutolol A beta-adrenergic blocking agent with the actions, uses and side-effects of propranolol, but with a more cardioselective effect and less likely to cause bronchospasm.
Dose: in hypertension, 400-800 mg daily; in severe angina, up to 1.2 g daily. It is contraindicated in cardiogenic shock, atrioventricular-block and heart failure. Care is necessary in obstructive airway disease and renal failure (Sectral). See page 148 and Table 21.
aceclofenec A non-steroidal anti-inflammatorydrug (NSAID) used for the relief of pain in arthritic and rheumatoid conditions. Dose: 200 mg daily. (Preservex). See page 131 and Table 29.
acemetacin A derivative of indomethacin with similar actions and uses, but said to be better tolerated.
Dose: 120-180 ing daily. (Finflex). See page 165 and ‘[’able 29.
acetazolamide An inhibitor of the enzyme carbonic anhydrase that has been given as a mild diuretic, as it increases the excretion of bicarbonate. Now used mainly in mild
acetomenaphthone A synthetic form of vitamin K, formerly used in prothrombin deficiency. Menadiol and phytonienadione are now preferred. Acetoinenaphtlione is present in some chilblain preparations.
acetylcholine The neurotransmitter of the parasympathetic nervous system. A 1% solution is sometimes used as a miotic to obtain rapid contraction of the pupil after cataract surgery. (Miochol).
acetylcysteine A mucolytic agent used as eye drops 5% in tear deficiency. Of value in the early treatment (10-15 hours) ofparacetarnol poisoning.
Dose: initially 150 nig/kg by slow i.v. injection, followed by smaller doses up to a total dose of 300 mg/kg over 20 hours. It is inef1ictive, and possibly harmful, if given at a later stage. (Parvolex). See methionine.
acetylsalicylic acid See aspirin. aciclovir See acyclovir.
acipimox A derivative of nicotinic acid used in hypercholesterolaemia.
Dose: 500–750 mg daily. Side-effects are hushing, erythema, nausea and malaise. (Olbetani). See page 146 and Table 20.
acitretin A vitamin A derivative (retinol) used in severe psoriasis resistant to other treatment.
Dose: 20-30 mg daily. Teratogenic - see specialist literature. (Neotigason).
aclarubicin An anthracene cytotoxic agent of the doxorubicin type used in resistant acute non-lymphatic leukaemia. (Aclacin). See specialist literature.
acrivastine one of the newer antihistamines. It is less likely to cause drowsiness, as it does not cross the blood-brain barrier to any great extent, but is correspondingly less effective in non-allergic pruritus. Dose: 24 mg daily. (Semprex). See
page 110 and Table 2.

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.

phenazocine A synthetic morphine-like analgesic, with similar properties and uses, but with a more rapid and prolonged action. It is of value in biliary colic, as it is less likely to cause a rise in biliary pressure. Dose: 20-30 ing daily, orally or subling tially, although single doses as high as 20 mg are sometimes given. The side-effects are similar to those of morphine and related drugs, but sedation and the risk of dependence is less. (Narphen).
I Phe
Dose: oo- 180 ing daily, at night, adjusted lo need and response. In severe conditions, doses of 50-200 mg may be given by i.m. or i.v. injection. Side-effects include drowsiness and skin reactions. In the elderly it may cause confusion, and paradoxically it may give rise to hyperkinesia in some children. See page 136 and Table 15.
phenol Once widely used as a general antiseptic. Weak solutions relieve itching, and phenol is present in Calamine Lotion. A 5% solution in almond oil is used for the iniection treatment of haemorrhoids.
phenelzine A monoamine oxidase inhibitor, used in the treatment of depression. Dose: 45-60 ing daily, according to need and response. It has many side-effects, including dizziness. dry mouth and blurred vision. Very severe hypertension has been precipitated by some foods, notably clicese. Care is necessary in cardiovascular disease and epilepsy. It may also potentiate the action of other drugs on the central nervous system. (Nardil). See monoamine oxidase inhibitors, Page 128 and’I'able 11.
phenindamine An antihistamine ofinedium potency. It differs from most antihistamines in having a mild central stimulant action, and so rarely causes drowsiness.
Dose: 75-200 ing daily. IThephorin). See page I 10 and Table 2.
phenindione An orally active anticoagu last used in the control of deep-vein thrombosis.
Dose: 200 mg initially; maintenance, 25-100 mg daily, depending on laboratory reports of the prothrombin time. Side- effects include hypersensitivity reactions and haemorrhage. Patients should be warned that the drug may colour the urine. Phenindione has now been largely replaced by %varlarill, (Dindevan).
pheniramine An antihistamine similar to but less potent than chlorpheniramine. Dose: 150 ing daily. (Daneral SA). See page 110 and Table 2.
tphenobarbitone A powerful sedative, hypnotic and anticonvulsant drug. It is mainly of value in epilepsy, as it is effective in most types of seizure except petit mil (absence seizures).
phenolphthalein A synthetic laxative. It is sometimes given with emulsion of liquid paraffin.
Dose: 50-100 mg daily. It may occasion alit/ cause a rash, and its use has declined.
tphenoperidine A narcotic analgesic, often used in association with droperidol in neuroleptanalgesia. It is also used as a supplementary analgesic in general anaesthesia.
Dose: 0.5-1 mg i.v. with subsequent doses as required. It may cause respiratory depression, which can be controlled by doxapram or naloxone. (Operidine).
phenothrin An insecticide used as 0.2% lotion for head and crab lice. (Fill] Marks).
phenoxybenzamine An alpha-adrenoceptor blocking agent used in the severe, episodic hypertension associated with phaeochroniocytoma.
Dose: orally and by injection, 10–20 mg according to need and response. Side-effects include dizziness and tachycardia; rapid and marked hypotension after injection. (Dibenyline).
phenoxymethylpenicillin An orally active, acid-stable penicillin, also known as penicillin V. It is used mainly in respiratory infections in children, in tonsillitis, and to supplement injection treatment. It is not suitable for use in severe infections. Dose: I - 2 g daily, before food. Doses of .500 mg daily are given in rheumatic fever and pneumococcal prophylaxis.
tphentermine An appetite depressant given ill the short-term treatment of obesity. Dose: 13–30 mg before breakfast. (DUramine: lonamin).

phentolamine An alpha-adrenoceptor blocking agent that can temporarily reverse the vasoconstrictive action of adrenaline and noradrenaline. It is used mainly in the diagnosis and control of the episodic hypertension of phaeochromocy- toma, and during surgical removal of the tumour.
Dose: 2-5 ing i.v. repeated as required. Side-effects are tachycardia, hypotension, dizziness, nausea and diarrhoea. (Rogitine).
phenylbutazone A powerful, non-steroidal anti-inflammatory agent, formerly used in the treatment of rheumatic and arthritic conditions. Because of blood dyscrasias, which may occur suddenly, the drug is now used only for the treatment of ankylosing spondylitis under hospital supervision.
Dose: 400-600 mg daily. (Butacote). See page 165 and Table 29.
phenylephrine A vasoconstrictor similar to .”Irvildlille, but less toxic. Given in acute hypotensive states.
Dose: 5 mg by i.m. injection, or 100-500 pg by slow i.v. injection. Sometimes valuable in paroxysmal atrial tachycardia. It is also used locally as 1:400 solution as nasal decongestive, and as eye drops, 2.5-100/6.
phenylpropanolamine A sympatho11111lictic agent used with other drugs in preparations for the symptomatic relief of nasal congestion.
phenytoin An anticonvulsant used in all forms of epilepsy with the exception of petit mil (absence seizures). It has little hypnotic effect and combined treatment with phenobarbitone may evoke the best response.
Dose: 150-600 mg daily with or after food. In status epilepticus it is given under ECG control in doses of 10-15 mg/kg by slow i.v. injection. It is also given to control ventricular tachycardiac in doses of 3.5-5 mg/kg by slow i.v. injection via a cavil catheter. The side-effects of
extended treatment are numerous, and include rash, dizziness, blood dyscrasias, hirsutism and gingival hypertrophy. (Epanutin). See page 136 and Table 15.
pholcodine A cough centre depressant resembling codeine, but it lacks any analgesic properties. It is present in a range of
products used for the relief of useless cough, and has the advantage over codeine of not causing constipation.
Dose: 10-60 mg daily.
physostigmine A plant alkaloid, also known as eserine, once used as a miotic (0.25-1%) to counteract the effects of atropine.
phytomenadione Vitamin K,. The form of vitamin K used in the prophylaxis and treatment of neonatal haemorrhage due to vitamin K deficiency.
Dose: I mg by i.m. injection. It is also of value in the haemorrhage due to overdose of oral anticoagulants. Dose: 10-40 mg by slow i.v. injection. In less severe condi-
tions, 10-20 mg orally, according to the base-line prothrombin time. (Konakion).
pilocarpine A plant alkaloid with a miotic action similar to, but less intense than that of physostigmine.
Dose: in glaucoma as eye drops of 0.5-41!4,, 3-6 times a day. Occasionally given in doses of 15-30 mg daily with food to reduce the dry mouth associated with irradiation of the head and neck.
(Salagen). See page 138 and Table 16.
pimozide A tranquillizer with the actions and uses of chlorpromazine. It is used mainly in the treatment of schizophrenia, as it reduces the delusions without causing drowsiness.
Dose: 10 mg daily initially, adjusted up to a maximum of 20 ing daily, with maintenance doses according to response.
Similar doses are given in mania and psycho-motor agitation. The side-effects are similar to those of chlorpromazine. (Orap). See page 168 and Table 30.
pindotol A beta-receptor blocking agent, with actions and uses similar to those of propranolol. Less likely to cause bronchospasm.
Dose: 7.5-15 nig daily. (Visken). See page 148 and Table 2l.
piperacillin A semi-synthetic penicillin with a wide range of activity that extends to Pseudomonas and anaerobes. It call be used in association with other antibiotics in life-threatening and multiple infections. Dose: in severe infections, 200-300mg/kg daily by i.m. or slow i.v. injection or infusion, increased in life-threatening infections to 16g daily. In less severe infections, 100-150ing/ki; i.m. daily, with a maximum single dose of 2g. (Pipril). Sometimes given with the beta-lactamase inhibitor tazobactam as the mixed product Tazocin.
piperazine An effective anthelmintic against threadworms and roundworms. Dose: 2-4 years, 750 ing; 5-12 years, 1.5 g; in children over 12 years and in adults, 2 g; as a single daily dose for 7 days, repeated if necessary after I week. For roundworm, a single dose of 4 g is given, but as the worms are narcotized, and not killed, a purgative is necessary to ensure expulsion. Side-effects are nausea, diarrhoea and occasional dizziness. Care is necessary in renal impairment, epilepsy and psychiatric conditions.
I Pot
Dose: 1.5-3 nig daily. Side-effects include drowsiness, nausea, dizziness and weight gain. (Sanomigran). See page 154 and Table 23.
podophyllum resin A plant extract used topically as a paint (0.5-25% in alcohol) for anogenital and plantar warts. It is very irritant to normal tissues, and its use requires care. (Condyline; Warticon).
polygellne A modified gelatin, used with sodium chloride and other electrolytes as a [)food volume expander.
Dose: 500-1000 ml by i.v. infusion. (1-lacniaccel).
polynnyxin 8 An antibiotic used by local application for infections of the car, eye and skin. It is too toxic for systemic use.
pipothiazine A chlorpromazine-like drug, with similar uses and side-effects, but given mainly as a depot preparation for the maintenance treatment ofschizophreiiiii. Dose: Wier a test dose of 25 mg) 50-IMnig by deep i.m. injection every 4 weeks, increased if necessary up to a maximum of 200 mg per dose. (Piportil Depot)• See page 168 and Table 30.
piracetamV A new drug used for the treatment of the spasmodic condition cortical myoclonus.
Dose: 7-20 g daily. Side-effects include diarrhoea, nervousness and rash. (Nootropil).
piroxicam A non-steroidal anti-inflammatory agent (NSAID) with all extended action, and used in arthritis, spondylitis, gout and musculoskeletal disorders. Dose: 20-30 mg daily; up to 40 ring daily in gout and other acute conditions. It is also used for local application as a 3% gel. As with related drugs, side-effects include gastrointestinal disturbances of varying severity, especially with higher doses. Weldene). See page 165 and Table 29.
pivampicillin A derivative of ampicillin, with similar actions and uses. Is hydrolyzed to ampicillin after absorption, but gives higher blood levels. Much is excreted in the urine, so it is of value in urinary infections. Dose: I -2 g daily. (Pondocillin).
pizotifen A serotonin antagonist used in the prophylaxis of migraine, and vascular headache.
polymyxin E See colistin.
polystyrene resin An ion-exchange resin [or the removal of potassium in
conditions associated with hyperkalaemia, as in oliguria and anuria.
Dose: 15 g 3•4 times a day according to the plasma level of potassium. When the drug is not tolerated orally, 30 g daily as a suspension may be given per rectum. Care is required in renal or hepatic impairment. (Resonium).
polythiazide A potent diuretic with the action, uses and side-effects of the thiazide diuretics but effective in the low dose of 1-4 ing daily. (Nephril).
poractant A lung surfactant used in the respiratory distress syndrome of premature infants. It is given by endotracheal tubing with mechanical ventilation.
(Curosurf).
potassium One of the most important ions of the body, mainly present in intracellular fluid. Many diuretics increase loss of potassium as well as sodium; with extended
treatment the potassium balance may be disturbed, with acute muscle weakness, cardiac arrhythmias, and an increased sensitivity to digitalis. Potassium loss can 1-w treated with potassium chloride orally (often as Slow-K, but may cause peptic ulceration), or by effervescent potassium tablets. Mixed diuretic and potassium products are also available.

mepacrine A synthetic antimalarial. Now replaced by chloroquine and other powerful drugs. It is used occasionally in the treatment for Giardia laynblia infections. Dose: 300 mg daily for 5-8 days.
tmeprobamate A mild tranquillizer used Ili anxiety and tension states, but its extended use may lead to dependence. Dose: 1.2-2.4 g daily. Side-effects are drowsiness, headache, gastrointestinal and visual disturbances. It has been largely replaced by benzodiazepine anxiolytics. (Equallil).
meptazinol An analgesic for the relief of moderate to severe pain. It has a more rapid and extended action than morphine, and is less likely to cause respiratory depression or induce dependence.
Dose: 800-1600 nig orally daily. In severe pain, 50-100nig by injection, repeated as required; in obstetric analgesia, 2 nig/kg. The action can be partly antagonized by naloxone. Side-effects include dizziness and nausea. (IMeptid).
rinequitisizine An antihistamine used for the symptomatic relief of allergic states such as haytever and urticaria. It is less likely to Cause sedation than sonic other antihistamines.
Dose: 10 mg daily. Side-effects may include dry mouth and blurred vision. (Prinialan). See page 110 and Table 2.
mercaptopurine A cytotoxic agent used in the treatment of acute leukaemia.
Dose: 2.5 niWkg daily. Close haernatologi,al control is essential, as the drug has .1 marked niyelosuppressive action. \.lercaptopurine is also hepatotoxic, and should be withdrawn if jaundice occurs. (Puri-Nethol). See page 122 and Table 8.
meropenem An antibiotic similar to imipenem. but more resistant to breakdown by renal enzymes, so combined use with an enzyme inhibitor is unnecessary. Dose: given by i.v. infusion in doses of 500 mg-2 g 8-hourly according to the severity of the infection. Care is necessary in hepatic disease. (Meronem).
mesalazine The active metabolite of sulphasalazine. It is not suitable for oral
use as such, but can be given as a resin-drug complex, so that the drug reaches and is released in the colon unchanged. It is used both for the acute attack and for the maintenance of remission of ulcerative colitis, particularly in patients unable to tolerate sulphasalazine.
Dose: 1.2-2.4 g daily. Side-effects include gastrointestinal disturbances, and care is necessary in patients hypersensitive to salicylates. Patients should be advised to report an), bruising, bleeding or malaise. If .a blood dyscrasia is suspected, a [)food count should be done and the drug withdrawn. Lactulose should not be used as a laxative, as it may hinder the release of the active drug. Also used as enema and suppositories. (Asacol; Pentasa; Salofalk). See page 172 and Table 32.
mesna A compound used to prevent the liaemorrhagic cystitis caused by the cytotoxic drugs cyclophosphamide and ifosfamide. The reaction is caused by the metabolite acrolein, and mesna reduces the toxicity by combining with acrolein in the urinary tract.
Dose: 20%, of that of the cytotoxic drug, and should be given at the same time by i.v. injection. Subsequent supportive doses may be given orally or by injection il - 8 hours after therapy. (Uromitexan).
mesterolone An orally active androgen with the actions and uses of testosterone. It is used in androgen deficiency and male infertility but, unlike other androgens, it does not inhibit endogenous androgen production, and is less hepatotoxic. Dose: 75-100 mg daily for sonic months. (I'm Viron).
mestranol An orally active oestrogen present in some oral contraceptive products. See page 264.
metaraminol A sympathornimetic agent that increases the blood pressure by a general constriction of the peripheral blood vessels. It is used mainly in the acute hypotension that may occur with spinal anaesthesia. It has also been used in shock, but the use of vasoconstrictors has declined, as in shock the peripheral resistance may be already high, and the use of blood volume expanders and dopamine and dubotamine is now preferred.
Dose: 15-100 mg 1)), i.v. infusion. Side-effects are tachycardia and reduced renal blood How. It is contraindicated in myocardial infarction. (Aramine).
metformin An orally active biguanide hypoglycaemic agent. Its action differs from that of the sulphonylureas, as it acts by increasing the peripheral uptake of glucose. It is used mainly in non-insulindependent diabetes not controlled by diet and sulphonylurea therapy.
Dose: 1.5-3 g daily according to need and response. Side-effects include nausea and transient diarrhoea. 11 may cause lactic acidosis and it should not be used in patients with renal impairment. (Glucophage). See page 131 and Table 13.
tmethadone A morphine-like analgesic with reduced sedative effects. Ofvalue in severe pain, and in the relief of useless cough in terminal disease.
Dose: 5-10 mg orally or by i.m. or s.c. injection, in intervals according to need. Prolonged treatment carries the risk of cumulative effects and overdose.
(Physeptone).
methenamine See hexarnine.
methionine A sulphur-containing amino acid essential for nutrition. It is used mainly in paracetamol poisoning, often with acetyl cysteine, and given within 10-12 hours.
Dose: 2.5 g 4-hourly up to a total of [0 g.
methocarbamol A skeletal muscle relaxant used in muscle injury and spasm.
Dose: 6g daily orally; 1-3 g daily by slow i.v. injection. It may cause drowsiness, dizziness and allergic rash. Contraindicated in epilepsy and myasthenia gravis. (Robaxin).
methohexitone A short-acting i.v. anaesthetic similar to thiopentone. It is used mainly for the induction and maintenance of anaesthesia for short operative procedures, when the quick recovery may be an advantage. (Brietal).
methotrexate A cytotoxic agent that acts by inhibiting the synthesis of purines, and so indirectly interferes with cell proliferation. It is used chiefly for maintenance therapy in the remission of acute lymphoblastic leukaemia in children, but it has been used in choriocarcinoma as well as some lymphomas and solid tumours.
Dose: in children, I5 mg/in' weekly. It is sometimes effective in resistant psoriasis, and is given in oral doses of 10-25 nig weekly under specialist supervision. It is occasionally used in severe rheumatoid arthritis not responding to other treatment in doses of 7.5 mg once weekly. Side-effects are those of gastrointestinal toxicity, niyelodepression, rash and cirrhosis. Blood counts and liver function tests during treatment are essential. Cough and dyspnea may indicate pulmonary toxicity. Aspirin and non-steroidal anti-inflaniniatory drugs (NSAIDs) should be avoided, as they delay the excretion of methotrexate and increase its toxicity. See page 122 and Table 8.
methotrimeprazine An antipsychotic agent of the chlorpromazine type, with similar actions, Uses and side-effects. It is used in schizophrenia when a sedative effect is also required.
Dose: 25 -50 mg daily, but much larger doses, up to 1 g daily, may be required, particularly for bedfast patients. It is of value as an adjunct to other therapy in terminal illness and is sometimes given by continuous s.c. infusion in doses of 25-200 ing over 24 hours. Postural hypotension may occur in elderly ambulant patients. (Nozinan). See page 168 and Table 30.
methoxamine A sympathomimetic agent that increases the blood pressure by constriction of the peripheral vessels. It is used in the hypotension following spinal anaesthesia; to correct an excessive response to antihypertensive drugs; and to arrest supraventricular tachycardia. Dose: 5-20 mg by i.m. injection; 5-10 mg by slow i.v. injection. Care is necessary in preexisting hypertension and cardiov.iwular disease (Vasoxine).
methyl cellulose A derivative of cellulose that is used as an emulsifying agent and bulk laxative.
Dose: 1.5-6g with water, but not at night. It is sometimes given in diarrhoea, with a minimum amount of water.
methyl salicylate A pale yellow liquid with a characteristic odour. It has long been used as wintergreen liniment and ointment for the local relief of muscle pain and rheumatic conditions, but is now less popular.

methylated spirit Alcohol containing 5% of wood naphtha. Used for skin preparation and alcoholic applications. The methylated spirit used domestically differs, and is coloured violet to indicate its unsuitability for medicinal use.
methylcysteine A sputum-liquefier claimed to be of value in respiratory conditions where the sputum is viscid. Dose: 600 ing daily. (Visclair).
! Met
other pressor amines. It is used mainly in the preoperative control of adrenaline-producing tumours (pliaeochrornocytoma), and in the long-term treatment of patients unsuitable for surgery.
Dose: I g daily initially, increased if necessary up t(') 4g daily. An adequate fluid intake is essential. Side-effects include sedation, which may be marked initially, diarrhoea, which maybe severe, depression and confusion. (Dernser).
so
methyidopa A centrally acting antihypertensive drug, usually given together with a diuretic. It has the advantage of being relatively safe in asthma, heart failure and pregnancy.
Dose: 750 ing-3 g daily; 250-500 mg by i.v. infusion. Side-effects are drowsiness, depression and diarrhoea. A systemic lupus crytheinatostis-like syndrome may also occur, and active liver disease is a contraindication. (Alcloinet). See page 148 an(] Table 21.
tmethylphenidate A central stimulant used occasionally under strict supervision for the treatment of hyperactive children. Dose: 5-10 mg daily. Witalin).
metoclopramide A stimulant of gastric and small intestine transport. It is used in the treatment of nausea and vomiting generally, including that induced by drugs or migraine, in non-ulcer dyspepsia, and in accelerating the passage of a barium meal.
Dose: 15-30 ing daily orally or by Lin. or i.v. injection. A single dose of 10-20 mg is given by injection 10 minutes before radiological examination. Side-effects include extra-pyramidal reactions, facial sprints and oculogyric crises, mainly in voting persons, and it is best avoided in patient., under 20 years of age. (Maxolon). Some long-acting products are also available. See page 158 and Table 25.
tmethylphenobarbitone An anticonvulsant with the actions, uses and side-effects of phenobarbitone.
Dose: in epilepsy, 100-600 ing daily. (Prominal). See page 136 and Table 15.
methylprednisolone A corticosteroid with the actions, uses and side-effects of prednisolone, and given in similar doses. (Medrone).
methysergide A synthetic drug related to ergonicirine and used in the prevention of severe and recurrent migraine not responding to other drugs.
Dose: 2-6 ing daily. It is also given fur the symptomatic treatment of the carcinoid syndrome in (loses of 12-20 ing daily. Mcthvsergide has many side-effects, including retroperitoneal and cardiac fibrosis, and its use requires expert supervision. (Des-A-ril)-See page 154 and] able 23.
metipranolol A beta-adrenoceptor blocking agent used as eye drops 0.1-0.6% for the treatment of chronic glaucoma.
metirosine An enzyme inhibitor that interferes with the synthesis of adrenaline and
metolazone A diuretic with the actions, uses and side-effects of bendrofluazide.
Dose: in hypertension, 5 mg daily I p
initially; in oedematous statcs,5-20ingor more daily may be given. The diuresis is increased by combined treatment with a loop diuretic such as ffl,lsemide, but monitoring of the response is necessary. (NIctinex). See page 148 and Table 21.
metoprolol A beta-blocking agent used in the control of angina, but also of value in hypertension and the prophylaxis of migraine.
Dose: in angina, 100-300 mg daily; in hypertension, 100-400 ing daily; in migraine prophylaxis and thyrotoxicosis 200 ing daily. It is occasionally given by slow i.v. injection in acute cardiac arrhythinias; dose 1-2 nighnin tip to a total of 10-15 mg. Care is necessary in heart block, bradycardia and pulmonary disease. (Betaloc; Lopresor). See page 114 and Table 4.
metriphonate An organophosphorus schistosornicide, but used only in infections of the hookworm Schistosonia haemobitim, which is found in the genitourinary veins.

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.

halothane A potent non-inflammable inhalation anaesthetic. It suppresses mucous and bronchial secretions, and reduces capillary bleeding. It has sonic muscle-relaxant properties, but in major surgery, supplementary treatment with a muscle relaxant is necessary. Halothane may cause some cardiac irregularities, but an occasional serious side-effect is severe hepatotoxicity, particularly after further exposure to the drug within periods of 441 weeks. Such susceptibility cannot yet be detected, so great care is necessary in any cases of liver dysfunction.
(Fluothane).
hamamelis An extract of witch hazel leaves referred to as harnarnelis or witch hazel water is used as a soothing application for bruises and sprains.
Hartmann’s solution An electrolyte-replacement solution containing sodium lactate, sodium chloride, potassium chloride and calcium chloride.
heparin The natural anticoagulant obtained front lung and liver tissue. It is widely used in deep-vein thrombosis and pulmonary embolism.
Dose: by i.v. injection 5000 units initially, followed by 1000-2000 units hourly by i.v. infusion, or 15000 units by s.c. injection 12-hourly under laboratory control. Prophylactic dose before surgery 5000 units, then 5000 units every 8-12 hours for 7 days. Overdosage call be controlled by the i.v. injection of prolamine sulphate. Treatment with heparin may be combined with that of oral anticoagulants such as phenindione or warfarin to provide immediate action before the slow-acting oral drugs begin to take effect. Occasional side-effects include hypersensitivity reactions and alopecia. Heparin is a complex polysaccharide, but certain fragments of that large molecule retain sonic anticoagulant activity, and are referred to as low molecular weight heparins. They are used mainly in the prophylaxis of venous thrombo-embolism, as they have a longer
action than standard heparin. They are given by once-daily s.c. injection, and laboratory control of the bleeding time is not necessary. The dose varies to some extent with the product used.
hepatitis A & 8 vaccines Inactivated hepatitis virus antigens for the protection of individuals highly exposed to the infections. Dose: see data sheets. (I iaverix A;
kncigix B; II–B–Vax).
theroin See diamorphine.
hetastarch A soluble modified starch that is used as a 6% solution with 0.9% sodium chloride as a plasma volume expander. Dose: 500-1500 nil daily by i.v. infusion, up to a maximum of 20 mltkg daily. It is excreted by the kidneys, and care must be taken to avoid circulatory overload. Not for use in congestive heart failure or renal insufficiency. Side-effects are vomiting, chills, fever and urticaria. (clol-IAES; Hespan).
hexachlorophene A slow-acting antiseptic used for skin sterilization, and present in sonic medicated soaps.
hexamine (methenamine) A formaldehyde derivative of low toxicity, occasionally used as a urinary antiseptic. Dose: 2 g daily. It is usually given as hexamine hippurate to ensure the necessary acidification ol’the urine. (Iliprex).
histamine A compound present in a bound form in all mammalian tissues; its release is probably the ultimate cause of many allergic conditions.
histamine H,-receptor antagonists See antihistamines. See page 110 and Table 2.
histamine Hz -receptor antagonists Drugs that (litter from conventional antihistamines in having a selective blocking action on receptors ill the gastric cells that secrete acid. They are widely used in the treatment of peptic ulcer and other conditions requiring a reduction in gastric acid secretion. See page 162 and Table 27.
homatropine An atropine derivative with a similar but more rapid mydriatic action (15-30 minutes), but a shorter duration of effect of about 24 hours. Eye drops
(1-2%) sometimes with cocaine.

hyaluronidase A ’spreading’ factor used to increase the absorption of large-volume s.c. injections. The injection of 1500 units of hyaluronidase, either into the injection site or mixed with the injection fluid, will promote the absorption of 500-1000 mL of electrolyte solution by s.c. drip infusion. (Hyalase).
hydralazine A vasodilator that is useful in the supplementary treatment of hypertension.
Dose: 50- 100 nig daily, usually with a IlliaUide diuretic or a beta-blocking agent. Also given in hypertensive crisis by slots, i.v. injection in doses of 5-10 mg; over-rapid injection may cause a marked fall in blood pressure. Side-effects are nausea, tachycardia and fluid retention (less likely with low doses), but a lupus erythematOSLIS- like syndromemay occur with extended high-dose therapy. (Apresoline). See page 148 and “Fable 21.
hydrochlorothiazide A thiazide diuretic that brings about it marked increase in the excretion of salts and water, and is of value in congestive heart failure and other oedematous conditions. It is also of value iii    as it reduces peripheral resistance, and potentiates the action of some other antihypertensive drugs.
Dose: 50-111(1 Ing daily initially in
oedenia; maintenance dose 25-50 mg daily or oil alternate days. III hypertension, 25-30 Ing daily according to need.
I lydrochlorolhiazidc, like other thiazid”, Increases the excretion of potassium as well as sodium, and in extended treatment supplementary treatment with potassium chloride or effervescent potassium tablets may be required. Side-effects include nausea, rash, dizziness and photosensitivity. (I lydroSaluric). See page 148
and ‘I able 21.
acute lyniphoblastic leukaemia and some lymphomas. In common with some other corticosteroids, hydrocortisone inhibits organ-transplant rejection and in high doses it is given to control incipient rejection.
Dose: varies considerably according to need: for replacement therapy, 20-30 mg daily: in shock, 100-300 mg or more by slow i.v. injection, repeated as required. Side-effects are numerous and include hypertension, oedema, mental disturbances, re-activation of peptic ulcer, muscle weakness and diabetes. Cushing’s syndrome may occur with high doses.
I I ydrocortisone, unlike cortisone, is active topically, in(] is used as eye drops 0.3% (usually with an antibiotic), ointment and cream (0.50/o and 11M, often with an antibiotic to control any secondary infection.
hydroflumethiazide A thiazide diuretic N,ith the actions, uses and side-effects of bendrofluazide.
Dose: 25- 100 nig daily in (lie morning; 25-50 Ing daily in hypertension.
ff lydrenox). See page 148.
hydrogen peroxide solution It contains 5-7% of H 02
, equivalent to about 20 volumes oJ oxygen. It has antiseptic and deodorizing properties, and is used mainly for cleaning wounds. It is also used as a mouthwash (diluted 1:7), and as ear drops (1:4 in water or 501% alcohol).
thydromorphone A potent opioid analgesic of the morphine type. Dose: in severe pain 1.3-2.6 Ing 4 t,-hourly. Walladone).
hydrotalcite Aluminium magnesium hydroxide carbonate. An antacid used in dyspepsia and related conditions.
Dose: I g as required.
55
hydrocortisone The principal corticosteroid, also known as cortisol, that is secreted by the adrenal cortex. It plays a major role in the metabolism of glucose, protein and calcium, in maintaining the electrolyte balance, and in reducing inflammatory and allergic responses. It is used in all cases of adrenocortical insufficiency, including Addison’s disease and after adrenalectomy. It is also used in anaphylactic shock, asthma, rheumatoid disease and allergic states. It is valuable in
hydroxocobalamin A derivative of eydnu,obdlaniin, and now the preferred form of vitamin B,, as it has a more prolonged action.
Dose: in pernicious anaemia and other vitamin 13, deficiency states, I Ing initially ian. repeated 5 times at intervals of 2-3 days; maintenance dose 1 mg by I’ll’
by )CC- Lion every 3 months. It is also given
prophylactically after total gastrectonly. (Cobalin-H; NCO-Cytalliell). See
page 112.

hydroxyapatite A natural substance with a mineral composition somewhat similar to that of bone. It is used as a source of calcium and phosphorus in osteoporosis and other deficiency states. Tablets of 830 mg are available. (Ossopan).
hypermotility of the gastrointestinal tract, and may be useful in spasmodic dysmenorrhoea.
Dose: 40-80 mg daily; in acute spasm, .10 mg by injection. (Buscopan).
hydroxychloroquine An antimalarial with the actions, uses and side-effects of chloroquine. It is also useful in rheumatoid arthritis in doses of 200-400mg daily, and in lupus erythematosus, but side-effects are numerous, and treatment requires expert supervision. (Plaquenil). See page 165.
hypromellose A cellulose-derivative that dissolves in water to form a viscid, colloidal solution. Such a solution is used as a base for eye drops to extend the action of a dissolved ophthalmic drug; to lubricate contact lenses; and to act as a lubricant in chronic, sore eye conditions.
5-hydroxytryptamine See serotonin.
hydroxurea (hydrocarbamide) A cytotoxic agent sometimes used in chronic myeloid leukaemia.
Dose: 20- 30 mg/kg as a single dose daily or 80 nig/kg every third day. Side-effects are nausea, skin reactions and myelo- suppression. (Hydrea). See page 122 and Table 8.
hydroxyzine A mild tranquillizer with some sedative and antihistaminic properties. It is given in the short-term treatment of anxiety, and in pruritus and dermatoses complicated by emotional tension. Dose: 50-400 mg daily. It has the side-effects of the antihistamines, and is not recommended where some sedation is undesirable. (Atarax; Ucerax). See page 117 and Table 3.
hyoscine (scopolamine) An alkaloid obtained from plants of the belladonna group. It is a powerful hypnotic and is widely used together with papaveretum for premedication before anaesthesia in doses of 300-600 pg by s.c. or i.m. injection. It has some antiemetic properties, and is useful in travel sickness and vertigo. Dose: 300 mg 30 minutes before starting the iourney, followed by up to 3 doses 6-hourly. Scopoderm is a patch of 500 pg. Thc side-effects of mouth dryness and dizziness are those of the anticholinergic drugs generally. It is contraindicated in glaucoma. It is used occasionally in terminal care for bowel colic and excessive respiratory secretions. Dose: 600 pg-2.4 mg daily by s.c. infusion.
hyoscine butylbromide A derivative of hyoscine that differs in lacking any central action. It is given in spasm and
I
ibuprofen A non-steroidal anti-inflammatory agent (NSAID) widely used in rheumatoid and arthritic conditions. It is also given as an analgesic for mild to moderate pain, but not for acute gout. Dose: 1.8 g daily initially; lly; maintenance duos, 600 lllg-L2 daily after food. A 5% cream is available for local use. The sideeflicts are those of the NSAID& generally. (BrUlen; Feribid). See page 165.
ichthammol A thick, dark brown liquid with a characteristic odour, derived from certain bituminous oils. It is a mild antiseptic and is used mainly in chronic eczema as a 100A, ointment or zinc paste. A solution (10% in glycerin) has been used oil ulcers and inflamed areas.
idarubicin A potent cytotoxic agent similar in actions and uses to doxorubicin. It is given orally and i.v. in acute nonlymphocytic leukaemia, breast cancer, and as second-line therapy in acute lymphatic leukaemia. Dose is based on skin area. (Zavedos). See page 122 and Table 8.
idoxuridine An antiviral agent now virtually superseded by acyclovir and related drugs. Used occasionally in herpes zoster skin infection by local application of a 5% solution. See page 144 and Table 19.

fosfamide A derivative of cyclophosphamide with similar actions and uses. It is effective in lung, ovary, breast and soft-tissue tumours, as well as some malignant lymphomas.

dimethicone Activated dimethicone is an antifoaming agent, said to reduce flatulence and protect mucous
membranes. It is a constituent of many antacid preparations. It is also present in some water-repellent skin creams.
dipipanana A rapidly acting morphine-like analgesic of value in the sever rain 4 to -1 dk–
Dose: 30-3450 mg (fail),, but it is usually• given in association with cyclizine as Diconal. The side-effects are similar to those of morphine.
dipivefrine A pro-drug that is converted into adrenaline after absorption. It is used
in chronic open angled- glaucoma as eye
drops (0.1%). (Propine). See page 138 and Table 16.
dimethylsulphoxide (DMSO) An organic liquid, it has been used for the symptomatic relief of interstitial cystitis
(Hunner’s ulcer) by the bladder instillation of 50 ml of a 50% solution. (Rimso-50).
dinoprost Prostaglandin F,.. It has actions and uses similar to dinoprostone.
(Prostin 112).
dinoprostone A synthetic form of prostaglandin E,. It has been used to initiate contractions of the pregnant uterus. Dose: 500 pg orally to induce labour, repeated if necessary at hourly intervals; as vaginal tablets or gel, 3 mg. Side-effects are nausea, diarrhoea, shivering and dizziness. (Prostin E2; Prepidil).
dioctyl sodium sulphosuccinate See dOCUSalC.
diodone injection A solution of a complex organic iodine compound, used as a contrast agent in X-ray examination of kidneys and ureters.
diphenhydramine One of the early antihistamines, with a more sedative action, and use(] in the temporary relief of insomnia. Dose: 10-25 trig. (Medinex. Nytol). It is also present in some cough preparations and nasal decongestants.
diphenoxylate A derivative that resembles codeine III reducing intestinal activity. It is used for the symptomatic relief of diarrhoea, and is usually given with a small dose of atropine to discourage excessive dosage and to reduce the risk of dependence. Dose: 10 mg initially, then 5 nig every 6 hours as required. (Lomotil;’Fropergen).
diphenylpyraline An antihistamine used as .I decongestant in colds and sinusitis. Present in Eskornadc.
dipyridamole An inhibitor of thrombus formation by reducing the adhesiveness of blood platelets in the arterial circulation. Dose: 300-600 mg daily before food. s I
ide-effects include nausea, diarrhoea and headache. (Persantill).
disodium cromoglycate See sodium cromoglycatc.
disodium etidronate See etidronate. disodium pamidronate See pamidronate.
disopyramide A quinidine-like drug used in the treatment of cardiac arrhythmias especially after myocardial infarction. Dose: 300-800 mg daily; dose by slow i.v. injection under ECG cover, 2 nig/kg up to 150 mg, followed by oral therapy as soon as possible. By its anticholinergic action care is necessary in glaucoma and prostatic enlargement. Contraindicated in heart block. (Dirythmin; Rythmodan). See page 1;6 and “fable 24.
distigmine An inhibitor of cholinesterase similar to neostigmine but with a longer action.
Dose: in the control of myasthenia gravis 5-20 mg as a single morning dose before breakfast; in urinary retention after surgery, 5 trig daily. It is sometimes used in neurogenic bladder disorders. Side-effects are nausea, abdominal cramp, diarrhoea and weakness. (Ubretid).
disulfiram When taken with even small amounts of alcohol, disulfiram permits the accumulation of acetaldehyde in the body, with side-effects such a flushing, giddiness, vomiting and headache that may be severe. Distilfiram is used in chronic alcoholism, but prolonged treatment and co-operation of the patient are essential.

Dose: after at least 24 alcohol free hours: 800 nig on the first day, falling over 5 days to 100-200 mg daily. Acute confusion may occur if given at the same time as tucLro-
llidazole. (Antabuse).
dithranol Synthetic compound used locally in the treatment of psoriasis. It is a powerful irritant, and treatment should be commenced with a simple ointment or zinc paste containing 0.1% ofdithranol, gradually increased to 1% if well tolerated. Higher concentrations are sometimes used in ’short -contact -time’ therapy.
Dose: 100 mg/m’ by i.v. infusion over
I hour. Rapid and severe hypersensitivity reactions (hypotension, bronchospasm) may occur, and treatment must be irrnediat4y available. Reaction risks may be reduced by premedication with jexalnetha&one given the day before treatment and continued for 5 days. Rash, pruritus and neutropenia may occur, and blood counts and liver function tests are necessary. (Taxotere). See page 122 and Table 8.
docusate A surface-active agent used as a faeces -softening laxative.
Dose: ill, to 500 nig daily. (Dioctyl).
diuretics The most widely used group of diuretics is the thiazides, represented by bendrofluazide (see page 14I ). They act mainly by increasing the excretion of
sodium by inhibiting its re-absorption by the distal tubule of the kidney, and evoke a rapid response which may persist over 12-24 hours, although some, such as chlorthalidone, have a still longer action. They are given in mild cardiac failure, oedema and in hypertension, but in more severe conditions, and in pulmonary occlema, the more powerful ‘loop’ diuretics, such as frusemide, which act at a different point, are preferred. A side-effect of some thiazides is an increase in the excretion of potassium which may require the use of potassium supplements or a change to a potassium sparing diuretic such as trianiterene. Spironolactone, an aldosterone antagonist, is a more powerful diuretic, of value in resistant oedema. Osmotic diuretics such as mannitol are used mainly in cerebral oedema. Simple diuretics such as potas slum citrate arc mainly used to alkalize the urine and promote diuresis in cystitis and similar conditions. See page 141 and Table 18.
dobutamine A sympathomimetic agent similar to isoprenaline, but with a more selective stimulant action on the beta, receptors in the heart. It increases cardiac contractility but is less likely to cause tachycardia. Useful in acute heart failure and cardiogenic and septic shock. Dose: 2.5-5 pg/kg/min by i.v, infusion, carefully adjusted to need. (Dobutr= Posiject). See page 141 and Table 18.
docetaxel A potent cytotoxic agent derived from the Pacific Yew. Used in advanced breast cancer resistant to other therapy.
domperidone An antiemetic that functions as a dopamine antagonist, as it prevents dopamine from reaching the receptors in the chemoreceptor trigger zone (see antiemetics). It is mainly of value in the severe nausea and vomiting caused by cytotoxic drugs, and is also useful in fum clonal dyspepsia. It is of little value in postoperative and travel sickness.
Dose: 10-20 mg 4-8-hourly; 30-60 nig by suppository. Sedative side-effects are infrequent, as domperidone does not cross the blood-brain barrier. (Motilium). See page 77.
donepezil A reversible inhibitor of anti-cholinesterase. Alzheimer’s disease is linked with a deficiency of acetylcholine in the brain, and donepezil may relieve sonic of the symptoms of that disease by increasing brain acetylcholine.
Dose: 5-10 mg at night. Diarrhoea and muscle cramps are side-effects. (Aricept ).
dopamine A sympathomimetic agent with actions and uses similar to dobutamine. Dose: 2.5-10 pg/kg/min by slow i.v. infusion. Careful control ofdose is essential, as dopamine may cause vasoconstriction with higher doses and increase the risk of heart failure. (Intropin). Dopamine is also a central neurotransinifter, and a deficiency is associated with parkinsonism. See levodopa, page 141 and “table 18.
dopexamine A short-acting drug of the dopamine type but with a more powerful action on the 0,-receptors. It is used in heart failure during cardiac surgery.

cephamandole A cephalosporin more resistant to inactivation by penicillinases. It is of value in serious infections resistant to other antibiotics.
Dose: 2-12 g daily by i.m. or i.v. injection. : Kellidol). See page 248 and Table 34.
cephazolin A cephalosporin with the
general properties of the group.
Dose: 1-12 g daily by injection. (Kefzol). See page 248 and Table 34.
cephradine A cephalosporin active orally as well as by injection.
Dose: 1-2 g orally daily; in severe infeclions 2–8g daily by injection. (Velosef). See page 248 .
certoparin A low molecular weight form of heparin. Used in prophylaxis of venous thromboembolism.
Dose: 3000 units once a day by s.c. injection (1-2 hours before surgery) for 7-10 days. (Alphaparin). See enoxaparin.
cetirizine A slower-acting antihistamine with reduced sedative effects, as it does not pass the blood-brain barrier to any extent. The anti-cholinergic side-effects are also reduced.
Dose: 10 nigat night. (’Lirtels). See page 110 and Table 2.
cetrinnide A detergent with some antiseptic properties. It is used chiefly in association with chlorhexidine.
charcoal Activated charcoal is a powerful adsorbent, and is used in the treatment of overdose or poisoning by many toxic drugs by preventing further absorption. Dose: 50g orally. It is also used in the charcoal - haenioperfusion system to promote elimination from the circulation of sonic already absorbed poisons. Charcoal has also been used as impregnated dressings to deodorize foul smelling wounds and ulcers,
chenodeoxycholic acid A bile acid
derivative that has it solvent action on cholesterol-containing gallstones, and it is useful when surgical removal of the stones is contraindicated.
Dose: I g once daily, but prolonged treatment is necessary. Side-effects are diarrhoea and pruritus, and ursodcoxycholic acid, which has fewer side-effects, is often preferred. Chenodeoxycholic acid is not suitable for the dissolution of radio-opaque gallstones. (Chendol; Chenofalk).
chloral hydrate A water-soluble hypnotic with a rapid action that is useful in the treatment of insomnia in children and the elderly.
Dose:    g. It must be given well-diluted to reduce the gastric irritant side-effects, and is contraindicated in gastritis, and severe renal, hepatic and cardiac disease. (Notre). Chloral betaine (Well-dorm) is a less irritant alternative. See page 152 and Table 22.
chlorambucil An orally active cytotoxic drug used mainly in the treatment of lymphomas and chronic lymphocytic leukaemia.
Dose: 100-200 pgfkg daily for 4-8 weeks. It k sometimes used as an immunosuppressant in the treatment of rheumatoid arthritis in doses of 2.5-7.5 mg daily. Chloranibucil is generally well tolerated, [)of [)one marrow depression may occur, and haematological control during treatment is essential. (Leukeran). See page 122 and Table 8.
chloramphenicol A wide-range, orally active antibiotic but now used only in life-threatening infections where other drugs arc unsuitable.
Dose: 2g daily orally, but in severe infections, -So niglkg daily by i.v. injection. Care is necessary when giving chloramphenicolo infants as it may cause so-called ‘grey syndrome’. Side-effects include nausea, neuritis and aplastic anaemia. Chloromycetin is also used locally in skin, eye and ear infections. (Chloromycetin; Kcinicetine).
chlordiazepoxide A benzodiazepinc used mainly in [tic short-term treatment of anxiety and alcoholism.
Dose: 30 mg daily, increased in severe anxiety up to 100 mg daily, with half closes fix elderly patients. Withdrawal of treatment should be gradual to avoid rebound effects. Side-effects include dizziness, drowsiness and ataxia. Prolonged use carries the risk of dependence. (Librium).

chlorhexidine An antiseptic of high potency and a wide range of activity, although it is ineffective against spores and viruses. For preoperative skin preparation, a 0.5% solution in alcohol is often used; an aqueous solution (0.05%) is for general topical application. Chlorhexidine is also used as a  solution for bladder irrigation. A general purpose cream and an obstetric cream are also available. Solutions of chlorhexidine may become contaminated with Pseudomonas, and all aqueous solutions should he sterilized. (1-libitane).
irreversible retinal damage. Other side-effects are gastrointestinal disturbances, rash and prutiros. (Axioclor,). Swe page 16.3.
chlorothiazide The first of the thiazide diuretics, now largely replaced by bendrofluazide and similar drugs. Dose: 1 -2 g daily in oedematous states; 0.i-1 g daily in hypertension. Potassium supplements may be necessary with extended treatment. (Saltiric). See page 148 and Table 21.
29
chlormethiazole A sedative with anticonvul’ant properties.
Dose: in severe insomnia in the elderly, 200-400nigorally; in alcohol withdrawal conditions, 400-800 mg initially, reduced and withdrawn over a 9-day period. It may also be given by i.v. infusion as a 0.8% solution. Chlonnethiazole has also been given by injection in status epilepticus and the toxaemia of pregnancy in doses according to need and response. Side-effects are sneezing, gastrointestinal disturbances and headache. (Heminevrit) See page 136 and Table Ii.
chloroform Once widely used as a general anaesthetic, but now obsolete. Used as chloroform -water in mixtures as a preservative and flavouring agent, and for its carminative effects.
chloroquine An antimalarial drug used for both prophylaxis and treatment of benign and malignant tertian malaria. It should be noted that chloroquine- resistant strains of Plasmodiunifialciparurn are becoming increasingly common, and a return to treatment with quinine may be necessary. Dose: adult prophylaxis, 300nig once a week; (Or treatment of an attack of malaria, oWnig initially followed by 300mg daily for 2-3 days. Seriously ill or vomiting patients should be given 2(XI-300 ing by Lin. or slow i.v. injection, repeated once ifncccssary L)cfi)rc oral treatment can be tolerated. Other dosage schemes are also in use, and for details reference should be made to standard works on the treatment of malaria. It has also been used in hepatic anioebiasis, but nietronidazole is now often preferred. Chloroquinc also has an action in rheumatoid inflammatory conditions similar to that of penicillamine, dose: 150 mg daily after food. Such use requires care, as extended therapy is necessary, and the drug may cause corneal opacity and
chloroxylenol A general purpose antiseptic present in some popular products. Of no value against Pseudornonas. aeruginosa or Proteus.
chlorpheniramine An antihistamine with the action, uses and side-effects of the group, including drowsiness.
Dose: 16-24 mg daily: 10-20 mg by Lin. or .c. injection as required. (Piriton). See page 110 and Table 2.
chlorpromazine A powerful tranquillizer or antipsycholic agent with a wide range of activity on the central nervous system. It is widely used in the treatment of schizophrenia and other psychoses, in agitation and tension, and the management of refractory patients. It is also effective as an antienietic in terminal illness; in the short-term treatment of severe anxiety; and for the control of intractable hiccup.
Dose: initially 75 mg orally daily, slowly increased as required. In psychotic states, Lip to I g daily. Single doses of 25-50 mg may be given by deep imi. injection in acute conditions. Suppositories of 100 mg are also available. Side-effects include extrapyramidal and anticholinergic symptoms, drowsiness, hypotension, weight gain, rash, jaundice and haemolytic anaemia. prolonged use may cause pigmentation of the skin and eyes. Care is necessary in hepatic and renal dysfunction. Skin sensitization may occur after Contact With solutions of chlorpromazine. Margactil). See page 168 and’I'able 30.
chlorpropamide A long-acting hypoglycaemic agent of the sulphonylurea type. It is effective only if some insulin-secreting cells are still functional. It is used mainly in mild diabetes mellitus occurring in middle-aged patients not responding to dietary control. Its long action makes it unsuitable for elderly diabetics.