Aug
1
Ciclopirox
August 1, 2009 | Leave a Comment
Generic Name
Ciclopirox (sye-kloe-PERE-ox) &
Brand Names
Loprox Penlac
Type of Drug Antifungal,
Prescribed For
Fungus and yeast infections of the nails and skin, including athlete’s foot, candida, and dandruff.
General Information
Ciclopirox slows the growth of a variety of fungus organisms and yeasts and kills many others. The drug penetrates the skin, hair, hair follicles, and sweat glands. Ciclopirox nail lacquer is used for toenail and fingernail fungus infections. Ciclopirox shampoo is used for dandruff.
Cautions and Warnings
Do not use this product if you are allergic or sensitive to any of its ingredients.
Possible Side Effects
Common: burning, itching, stinging, or oozing at the application site.
Drug Interactions None known.
Usual Dose
Cream/Lotion
Adult and Child (age 10 and over): Massage into cleansed affected skin and surrounding area twice a day.
Nail Lacquer
Adult: Apply to infected nails once a day. Use in conjunction with monthly visits to a health care professional.
Child (under age 10): not recommended.
Shampoo
Adult: Wet hair and apply 1-2 tsp to the scalp. Lather and leave on hair and scalp for 3 minutes, then rinse. Avoid contact with eyes. Repeat twice weekly for 4 weeks.
Child (under age 16): not recommended.
Overdosage
Accidental ingestion may cause nausea and upset stomach. Call your local poison control center or hospital for more information. If you seek treatment, ALWAYS bring the prescription container.
Special Information
This product can be expected to relieve symptoms within the first week of use. Follow your doctor’s directions for the complete 2-4 week course of treatment with the cream or lotion to gain maximum benefit. The nail lacquer may be used for up to 48 weeks. Stopping the medication too soon can lead to a relapse.
When using ciclopirox nail lacquer, do not apply it to any skin other than that which surrounds the infected nails, because of possible irritation. Do not apply nail polish or any other nail lacquer to infected nails while you are using this product.
Avoid using ciclopirox nail lacquer near an open flame, since the product is flammable.
Do not cover cream or lotion with a bandage.
Call your doctor if the affected area burns, stings, or becomes red after you use this product, 13y i1 your symptoms do not clear Up aher 4 weeks of treatment; by then it is unlikely that this product will be effective.
If you forget a dose of ciclopirox, apply it as soon as you remember. Do not apply more than the amount prescribed to make up for the missed dose.
Special Populations
PregnancylBreast-feeding., ciclopirox may pass to the fetus in very small amounts. In animal studies, high doses of ciclopirox given by mouth did not harm the fetus. Caution should be exercised when using ciclopirox during pregnancy.
It is unknown if ciclopirox passes into breast milk. Nursing mothers who must use this drug should consider using infant formula.
Seniors: Seniors may use this drug without special restriction.
Aug
1
Chlorpromazine
August 1, 2009 | Leave a Comment
Generic Name
Chlorpromazine (klor-PROE-muh-zene) Al
Brand Names
Sonazine Thorazine*
The information in this profile also applies to the following drugs: Generic Ingredient: Fluphenazine Hydrochloride RE Generic Ingredient: Thioridazine Hydrochloride 0 Generic Ingredient: Trifluoperazine Hydrochloride
‘Some products in this brand-name group are alcohol- or sugar-free. Consult your pharmacist.
Type of Drug Phenothiazine antipsychotic.
Prescribed For
Psychotic disorders; moderate to severe depression with anxiety; agitation or aggressiveness in disturbed children; intractable pain; and senility. May also be used to relieve nausea, vomiting, hiccups, restlessness, acute intermittant porphyria, and apprehension before surgery or other procedures.
General Information
Chlorpromazine and other phenothiazines act upon a portion of the brain called the hypothalamus. Phenothiazines affect parts of the hypothalamus that control metabolism, body temperature, alertness, muscle tone, hormone balance, and vomiting. Chlorpromazine is available in suppositories and as liquid for those who have trouble swallowing tablets.
Cautions and Warnings
Do not take chlorpromazine if you are AeTgic or sensitive to any oVilsingredients or to any phenothiazine drug. Do not take it if you have very low blood pressure, Parkinson’s disease, or blood, liver, kidney, or heart disease.
Chlorpromazine may depress the cough reflex. People have accidentally choked to death because the cough reflex failed to protect them. Because of its effect in reducing vomiting, chlorpro-mazine may obscure symptoms of disease or toxicity due to over-
dose of another drug.
Use chlorpromazine under your doctor’s strict supervision if you have glaucoma, epilepsy, ulcers, or urinary difficulties.
Avoid exposure to extreme heat, because this drug may upset your body’s temperature-control mechanism. Do not allow the liquid forms of this drug to come in contact with your skin because they are highly irritating.
Chlorpromazine may cause unusually high or low levels of cholesterol.
Possible Side Effects
♦ Most common: drowsiness, especially during the first or second week of therapy. If drowsiness becomes troublesome, contact your doctor.
V Less common: changes in blood components, including anemias, raised or lowered blood pressure, abnormal heart rate, heart attack, sensitivity to light, and faintness or dizziness.
V Rare: Rare side effects can occur in almost any part of the body. Contact your doctor if you experience any side effect not listed above.
Jaundice (symptoms include yellowing of the whites of the eyes or skin) may appear; when it does, it is usually within the first 2-4 weeks of treatment. Normally the jaundice goes away when the drug is discontinued, but there have been cases when it has not.
Phenothiazines may produce extrapyramidal side effects, including spasm of the neck muscles, rolling back of the eyes, convulsions, difficulty swallowing, and symptoms associated with Parkinson’s disease. These side effects seem very serious but usually disappear after the drug has been withdrawn; however, symptoms affecting the face, tongue, or jaw may persist for as long as several years, especially in older adults with a history of brain damage.
Chlorpromazine may cause an unusual increase in psychotic symptoms or may cause paranoid reactions, tiredness, lethargy, restlessness, hyperactivity, confusion at night, bizarre dreams, sleeplessness, depression, decreased sex drive, increased appetite, or euphoria (feeling “high”).
Drug Interactions
• Be cautious about taking chlorpromazine with over-the-
counter cough, cold, or allergy medications, barbiturates, al-
cohol, sleeping pills, narcotics or other sedatives, or any other
drug that may produce a depressive effect.
• Aluminum antacids may reduce the effectiveness of phenothiazine drugs.
• Chlorpromazine may reduce the effectiveness of bromocriptine and appetite suppressants.
• Anticholinergic drugs may reduce the effectiveness of chlorpromazine and increase the chance of side effects.
• Phenothiazine drugs may counter the blood-pressurelowering effect of guanethidine.
• Taking lithium together with a phenothiazine drug may lead to disorientation, loss of consciousness, or uncontrolled muscle movements.
• Combining propranolol and a phenothiazine drug may lead to unusually low blood pressure.
• Combining tricyclic antidepressants with a phenothiazine drug can lead to antidepressant side effects.
• Chlorpromazine may reduce the effectiveness of epinephrine and norepinephrine.
• Cigarette smoking reduces the amount of chlorpromazine in your blood. Smokers may need larger doses.
Food Interactions
Take liquid chlorpromazine with fruit juice or other liquids. You may also take it with food if it upsets your stomach.
Usual Dose
Adult: 30-1000 mg or more a day, individualized according to your disease and response.
Child (age 6 months and over): 0.25 mg per lb. of body weight every 4-6 hours, up to 200 mg or more a day, depending on disease, age, and response.
Chitty (under 6 months): not recommended.
Overdosage
Overdose symptoms include depression, extreme weakness, tiredness, lowered blood pressure, agitation, restlessness, uncontrolled muscle spasms, convulsions, fever, dry mouth, abnormal heart rhythms, and coma. The victim should be taken to a hospital emergency room immediately. ALWAYS bring the prescription bottle or
container.
Special Information
Call your doctor at once if you develop sore throat, fever, rash, weakness, visual problems, tremors, muscle movements or twitching, yellowing of the skin or whites of the eyes, or darkening of the urine.
Do not stop taking chlorpromazine without your doctor’s knowledge. It may take several weeks before this drug takes effect.
This drug may cause drowsiness. Use caution when driving or operating hazardous equipment. Avoid alcoholic beverages.
Chlorpromazine may cause unusual sensitivity to the sun and may turn your urine reddish brown to pink.
If dizziness occurs, avoid rising quickly from a sitting or lying position and avoid climbing stairs. Use caution in hot weather, because this drug may make you more prone to heat stroke.
If you are using sustained-release capsules, do not chew them or break them—swallow them whole. Liquid forms of phenothiazines must be protected from light. Do not take them out of their opaque bottles.
If you take chlorpromazine more than once a day and forget to take a dose, take it right away if you remember within an hour. If you do not remember within an hour, skip the dose you forgot and continue with your regular schedule. If you take 1 dose a day and forget a dose, skip the dose you forgot and continue your regular schedule the next day. Never take a double dose.
Special Populations
Pregnancy/Breast-feeding: Infants born to women taking this drug have experienced side effects—including jaundice and nervous system effects. Check with your doctor about taking chlorpromazine if you are or might be pregnant.
This drug may pass i”W breast milk. Nursing mothers who must take chlorpromazine should use infant formula .
Seniors: Seniors are more sensitive to the effects of this drug and usually achieve desired results with lower dosages. Some experts feel that seniors should receive ‘/,-1/4 the usual adult dose.
Aug
1
Chlorpheniramine Maleate
August 1, 2009 | Leave a Comment
Generic Name
Chlorpheniramine Maleate
(KLOR-ten-ERE-uh-mene MAL-ee-ate) M
Brand Names
Aller-Chlor Efidac 24
Chlor-Trimeton Pediox S
Chlor-Trimeton Allergy 8 Hour Prohist+8 Chlor-Trimeton Allergy 12 Hour QDALL AR
The information in this profile also applies to the following drugs: Generic Ingredient: Cyproheptadine Hydrochloride 0
Generic Ingredient: Dexchlorpheniramine Maleate 19
Type of Drug Antihistamine,
Prescribed For
Stuffy and runny nose, itchy eyes, and scratchy throat caused by seasonal allergy, and other symptoms of allergy such as rash, itching, and hives.
General Information
Antihistamines generally work by blocking the release of histamine (a chemical released by body tissue during an allergic reaction) from body cells at the H, histamine receptor site, drying up secretions of the nose, throat, and eyes.
Cautions and Warnings
Do not use this drug if you are allergic or sensitive to any of its ingredients.
Use chlorpheniramine maleate with care if you have a history of thyroid disease, heart disease, high blood pressure, or diabetes. This drug should be avoided or used with extreme care if you have narrow-angle glaucoma, stomach ulcer or other stomach problems, enlarged prostate, or problems passing urine. It should not be used by people who have deep-breathing problems such as asthma, emphysema, or chronic bronchitis.
Possible Side Effects
V Less common: rash or itching, sensitivity to bright light, increased sweating, chills, lowered blood pressure, headache, rapid heartbeat, sleeplessness, dizziness, disturbed coordination, confusion, restlessness, nervousness, irritability, euphoria (feeling “high”), tingling in the hands or feet, blurred or double vision, ringing in the ears, upset stomach, appetite loss, nausea, vomiting, constipation, diarrhea, urinary difficulties, chest tightness, wheezing, stuffy nose, and dryness of the mouth, nose, or throat. Young children may also develop nervousness, irritability, tension, and anxiety.
Drug Interactions
• chlorpheniramine maleate should not be taken with a mono-amine oxidase inhibitQ(aMkdepiessank, because the combination may cause severe side effects.
• The effects of sedatives, benzodiazepines such as diazepam, and sleeping medications will be increased when any of these drugs is combined with chlorpheniramine maleate. It is extremely important for your doctor to know if you are taking any other medication with chlorpheniramine maleate so that the dosage of that medication can be properly adjusted.
• Anti chol inergenics may cause an increase in side effects of chlorpheniramine maleate.
• Be extremely cautious when drinking alcoholic beverages while taking this drug, which enhances the intoxicating and sedating effects of alcohol.
Food Interactions
You may take this drug with food if it upsets your stomach.
Usual Dose
chlorpheniramine
Adult and Child (age 13 and over): 4 mg every 4-6 hours; do not take more than 24 mg a day.
Child (age 6-12): 2 mg every 4-6 hours; do not take more than 12 mg a day.
Child (age 2-5): 1 mg every 4-6 hours; do not take more than 4 mg a day.
chlorpheniramine, Sustained-Release
Adult and Child (age 13 and over): 8-12 mg at bedtime, or every 8-12 hours during the day; do not take more than 24 mg a day. Child (age 6-12): 8 mg during the day or at bedtime.
Child (under age 6): not recommended.
Cyproheptadine
Adult and Child (age 15 and over): 4-20 mg a day; do not exceed 32 mg a day.
Child (age 7-14): 4 mg 2-3 times a day; do not exceed 16 mg a day.
Child (age 2-6): 2 mg 2-3 times a day; do not exceed 12 mg a day.
Dexchlorpheniramine
Adult and Child (age 12 and over): 2 mg every 4-6 hours. Child (age 6-11): 1 mg every 4-6 hours.
Child (age 2-5): 0.5 mg every 4-6 hours.
Dexchlorpheniramine, Sustained-Release
Adult and Child (age 12 and over): 4-6 mg every 8-10 hours and at bedtime.
Child (age 6-11): 4 mg once a day and at bedtime. Child (under age 6): not recommended.
Tripelennamine
Adult and Child (age 12 and over): 25-50 mg every 4-6 hours; do not take more than 600 mg a day. Adults may take up to 3100-mg, sustained-release tablets a day, although this much is not usually needed.
Child (under age 12): 2 mg per lb. of body weight a day in divided doses; no more than 300 mg a day should be given.
Overdosage
Symptoms of overdose include depression or stimulation, especially in children; dry mouth: fixed or dilated pupils; flushing of the skin; upset stomach; unsteadiness; and convulsions. Overdose victims should be made to vomit as soon as possible with ipecac syrup—available at any pharmacy—to remove excess drug from the stomach. Take the victim to a hospital emergency room immediately if the victim is unconscious.or if you cannot induce vomiting. ALWAYS bring the prescription bottle or container.
Special Information
This drug may cause tiredness or loss of concentration: Be extremely cautious when driving or doing anything that requires close attention.
If you forget a dose of this drug, 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-feeding., Animal studies have shown that some antihistamines may cause birth defects. Do not take any antihistamine without your doctor’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 some antihistamines pass into breast milk. NV ing mothers who must take chlorpheniramine maleate should use infant formula.
Seniors: Seniors are more sensitive to antihistamine side effects. Dosage reduction may be needed.
Jul
16
Alitretinoin
July 16, 2009 | Leave a Comment
Generic Name
Alitretinoin (al-ih-TRET-in-oin)
Brand Name
Panretin
Type of Drug Retinoid.
Prescribed For
Skin lesions of Kaposi’s sarcoma (KS).
General Information
Alitretinoin binds to and activates retinoid receptors in human cells. Once activated, these receptors help stimulate the body’s natural mechanisms for limiting tissue growth—in this case, the growth of KS cells. KS lesions, which are primarily associated with human immunodeficiency virus (HIV), can respond to alitretinoin in as little as 2 weeks, but most people do not start to see results for 48 weeks or, in some cases, 14 weeks or more.
Cautions and Warnings
Do not use alitretinoin if you are allergic or sensitive to retinoids or to any of its ingredients.
Alitretinoin is applied to individual KS lesions. It does not treat systemic KS or prevent new KS lesions from forming.
People requiring systemic KS treatment (those who have developed more than 10 new KS lesions within a month) should not use alitretinoin.
People with swollen lymph glands, KS that affects the lungs or other major organ involvement should not use alitretinoin.
Possible Side Effects .
✓ Most common: rash and burning pain at application site.
♦ Common: itchy, flaking, peeling, cracking, oozing, swelling, and inflammation at application site.
Drug Interactions
• Do not use insect repellant products that contain DEET, a widely used chemical repellant. Alitretinoin increases DEET toxicity.
Usual Dose
Adult: Apply 2-4 times a day to KS skin lesions. Seniors should use this drug with caution.
Child: not recommended.
Overdosage
Little is known about the effects of accidental ingestion. Call your local poison control center or a hospital emergency room for information. If you seek treatment, ALWAYS bring the prescription bottle or container.
Special Information
Apply enough alitretinoin gel to cover the entire skin lesion. Allow the gel to dry for 3-5 minutes before covering the area with clothing. Avoid showering, bathing, or swimming for at least 3 hours.
If you use a bandage or dressing, be sure it is not tight and that air can circulate freely over the area.
Avoid applying alitretinoin to unaffected skin because it may be irritated by the drug. Avoid applying near the nose, eyes, or mouth.
Alitretinoin contains alcohol. Always keep it away from any open flame.
Retinoids can cause unusual sensitivity to the sun. While this has not been seen with alitretinoin, you should avoid prolonged exposure to the sun or use sunscreen while taking this drug.
If you forget a dose, apply it as soon as you remember. If it is almost time for your next dose, apply the forgotten dose and then space the rest of your doses throughout the day. Continue with your regular schedule the next day.
Special Populations
PregnancylBreast-feeding., Alitretinoin can harm the fetus when sufficient levels of the drug are present in the mother’s bloodstream, but it is not known if these levels are achieved during routine use of alitretinoin. Women who are or might be pregnant should only use this drug after discussing its potential benefits and risks with their doctors.
It is not known if alitretinoin passes into breast milk. Nursing mothers who must use alitretinoin should use infant formula.
Seniors: There is no information on use of alitretinoin by seniors. Seniors should use it with caution.
Jul
16
Aggrenox
July 16, 2009 | Leave a Comment
Brand Name
Aggrenox
Generic Ingredients
Dipyridamole + Aspirin
Type of Drug Antiplatelet.
Prescribed For
Prevention of recurrent stroke or transient ischemic attack (TIA)— “mini-stroke.”
General Information
Stroke is often the result of a clot blocking flow in a blood vessel supplying the brain. Aggrenox helps prevent blood clot formation by reducing the “stickiness” of platelets, blood cells that stick together to form the beginnings of all clots. In one study, Aggrenox reduced the risk of stroke by over 30% compared to placebo in people who had recently had a stroke or TIA.
Cautions and Warnings
Do not use this drug if you are allergic or sensitive to any of its ingredients or any nonsteroidal anti-inflammatory drug (NSAID). People who have asthma, nasal polyps, or chronic runny nose, are likely to be sensitive to aspirin.
The aspirin in Aggrenox can cause Reye’s syndrome, a severe reaction (vomiting, lethargy, and belligerence, and possibly worsening to coma) in children under age 16.
People with a history of stomach ulcers or stomach problems should avoid Aggrenox.
People who have angina or have had a recent heart attack should be very cautious about taking this drug. It may worsen chest pain.
People with low blood pressure, liver disease, or kidney failure should be cautious about taking this drug.
People taking Aggrenox may bleed for longer amounts of time. Those with bleeding disorders should avoid Aggrenox.
Possible Side Effects
✓ Most common: headache, upset stomach, abdominal pain, nausea, and diarrhea.
✓ Common: pain, tiredness, and vomiting.
✓ Less common: convulsions, rectal bleeding, blood in the stool, hemorrhoids, back pain, accidental injuries, stomach bleeding, feeling unwell, weakness, fainting, memory loss, arthritis, joint or muscle pain, coughing, and respiratory infection.
✓ Rare: Rare side effects can occur in almost any part of the body. Contact your doctor if you experience any side effect not listed above.
Drug Interactions
• Avoid alcohol. People who take 3 or more drinks a day while using any aspirin-containing product are more likely to develop stomach ulcers or bleeding.
• Aspirin may reduce the blood-pressure-lowering effects of angiotensin-converting enzyme (ACE) inhibitor drugs, beta blockers, and diuretics.
• Combining aspirin and acetazolamide or an NSAID can cause kidney problems.
• Aspirin can increase the blood-thinning effects of anticoagulant (blood-thinning) drugs such as warfarin. Avoid this combination.
• Aspirin can increase the effects of oral antidiabetes drugs, possibly leading to low blood sugar.
• Aspirin counteracts the uric-acid-eliminating effects of probenecid and sulfinpyrazone.
• Aspirin can increase the toxic effects of anticonvulsant drugs and methotrexate.
• Dipyridamole increases the level of adenosine in the blood and may increase cardiovascular-related side effects. The adenosine dosage may need to be adjusted when these two drugs are combined.
• Dipyridamole may interfere with cholinesterase inhibitors used to treat myasthenia gravis.
Food Interactions
Aggrenox is best taken on an empty stomach but may be taken with food if it upsets your stomach.
Usual Dose
Adult: 1 capsule (200 mg of sustained-release dipyridamole and 25 mg of aspirin) morning and evening.
Child: not recommended.
Overdosage
Symptoms include a sensation of warmth, flushing, sweating, restlessness, weakness, dizziness, low blood pressure, and rapid heartbeat. Take the victim to a hospital emergency room. ALWAYS bring the prescription bottle or container.
Special Information
Call your doctor if you experience blood in your stool, persistent diarrhea, or abdominal or stomach pain.
Avoid alcohol while taking this drug.
In people taking Aggrenox, minor cuts may take longer than normal to stop bleeding.
If you forget a dose, take it as soon as you remember. If it is almost time for your next dose, skip the one you forgot and continue with your regular schedule.
Swallow Aggrenox tablets whole; do not crush or chew them.
Special Populations
Pregnancy/Breast-feeding: Pregnant women should avoid Aggrenox because of its aspirin content. Aspirin can cause bleeding problems in mother and fetus and result in a low-birth-weight infant. When this drug is considered crucial by your doctor, its potential benefits must be carefully weighed against its risks.
Both ingredients in Aggrenox pass into breast milk. Nursing mothers who must take this drug should use infant formula.
Seniors: Seniors may need a reduced dose of Aggrenox.
Jul
16
Adderall
July 16, 2009 | Leave a Comment
Brand Name
Adderall
Generic Ingredients
Dextroamphetamine Sulfate + Dextroamphetamine Saccharate + Amphetamine Aspartate + Amphetamine Sulfate
Other Brand Names Adderall XR
The information in this profile also applies to the following drugs:
Generic Ingredient.* Dextroamphetamine Sulfate RE Dexedrine Dextrostat
Generic Ingredient., Lisdexamfetamine Dimesylate Vyvanse
Type of Drug
Central-nervous-system (CNS) stimulant.
Prescribed For
Attention-deficit hyperactivity disorder (ADHD) and narcolepsy (uncontrollable desire to sleep).
General Information
Amphetamines are stimulants that work on the brain’s feeding center. Adderall, which is a mixture of two forms of amphetamine, may be used as a short-term aid in weight reduction. It should not be taken for longer than a few months for this purpose.
Amphetamines may also be prescribed for childhood ADHD, a condition characterized by distractibility, short attention span, hyperactive behavior, emotional instability, and difficulty controlling impulses. They should be used only after a complete evaluation of the child has been done. Frequency and severity of symptoms and their appropriateness for the age of the child determine whether drug therapy is required. Many experts believe that amphetamines offer only a temporary solution because they do not permanently change behavioral patterns. Psychological, educational, and social measures must also be taken to ensure successful treatment in the long term.
Cautions and Warnings
Do not take Adderall if you are allergic or sensitive to any amphetamine or have heart disease, a heart defect, high blood pressure, hardening of the arteries, liver or kidney disease, tics or Tourette’s syndrome, seizures or abnormal brain wave tests, thyroid disease, glaucoma, or a history of drug abuse.
Amphetamines should be used with extreme caution because they are highly addictive and easily abused.
New or worsening thought patterns, bipolar illness, aggressive or hostile behavior, psychotic behavior, and new manic symptoms can develop during treatment with amphetamines.
Stimulants like amphetamines are not effective and may be dangerous for children whose symptoms are related to environmental factors or primary psychiatric conditions, including psychosis.
Stimulants can cause weight loss and stunted growth in children under age 10. Blurred vision and difficulty focusing can occur.
Possible Side Effects
✓ Common: heart palpitations, restlessness, overstimulation, dizziness, sleeplessness, increased blood pressure, rapid heartbeat, upper abdominal pain, and weight loss.
✓ Less common: euphoria (feeling “high”), hallucinations, muscle spasms and tremors, headache, dry mouth, unpleasant taste in the mouth, diarrhea, constipation, upset stomach, nausea, vomiting, rash, itching, changes in sex drive, and impotence.
✓ Rare: psychotic drug reactions. Contact your doctor if you experience any side effect not listed above.
Drug Interactions
• Combining an amphetamine and a monoamine oxidase inhibitor (MA01) antidepressant may cause a severe increase in blood pressure as well as bleeding inside the skull. Wait at least 2 weeks after stopping an MAGI before taking an amphetamine.
• Amphetamines may reduce the effectiveness of high blood pressure medicines.
• Gastrointestinal and urinary acidifying agents such as methenamine reduce the effectiveness of amphetamines.
• Gastroinstestinal alkalizing agents, such as sodium bicarbonate, and urinary alkalizing agents (acetazolamide, some thiazides) may increase and prolong the effects of amphetamines.
• Antipsychotic medications such as chlorpromazine, haloperidol, and lithium carbonate inhibit the stimulatory effects of amphetamines and can cause amphetamine poisoning.
• Amphetamines may enhance the effects of tricyclic antidepressants, norepinephrine, phenobarbital, phenytoin, and meperidine.
• Amphetamines may decrease the effectiveness of beta blockers.
• Amphetamines may counteract the sedative effect of antihistamines.
• Amphetamines can delay the absorption of ethosuximide into the bloodstream.
• Propoxyphene increases the CNS-stimulating effect of amphetamines. Fatal convulsions have occurred in propoxyphene overdose with amphetamines.
Food Interactions
These drugs may be taken without regard to food or meals.
Usual Dose
Dextroamphetamine and Adderall
ADHD
Child (age 6 and older): 5-40 mg once or twice a day.
Child (age 3-5): 2-5 mg a day. Dose may be increased weekly until maximum response is achieved.
Narcolepsy: 5-60 mg a day.
Weight Control: 5-30 mg a day in divided doses 30-60 minutes before meals; alternately, a single, long-acting dose may be taken in the morning.
Adderall XR
Adults: 20 mg a day.
Child (age 13-17): 10-20 mg every morning. Child (age 6-12): 10-30 mg every morning. Child (under age 6): not recommended.
Lisdexamfetamine
Child (age 6-12): 30 mg every morning. Daily dose may be increased up to 70 mg.
Child (under age 6): not recommended.
Overdosage
Symptoms include tremors, muscle spasms, restlessness, exaggerated reflexes, rapid breathing, dry mouth, constipation, hallucinations, confusion, panic, and overaggressive behavior. These may be followed by depression, exhaustion, abnormal heart rhythms, blood pressure changes, nausea, vomiting, diarrhea, convulsions, and coma. Take the victim to a hospital emergency room immediately. ALWAYS bring the prescription bottle or container.
Special Information
Amphetamines should be used very cautiously and only when considered absolutely necessary.
When taken for weight control, this drug should be used only when other methods have failed, and will gradually lose its effectiveness as the body starts breaking it down faster. Do NOT increase your dosage when this occurs. The drug must be discontinued.
Amphetamines are addictive and commonly abused. If you feel you have developed a tolerance or dependence to Adderall, contact your doctor. Do not increase your dosage without your doctor’s approval.
Amphetamines may impair your ability to drive or operate heavy machinery. Use with caution. To prevent this drug from interfering with sleep, take it at least 6-8 hours before bedtime.
Do not crush or chew the sustained-release form.
If you forget your once-daily dose, skip it and go -back to your regular schedule the next day. If you take the drug 2-3 times a day and miss a dose, take it as soon as you remember. If it is within 3 hours of your next dose, skip the one you forgot and continue with your regular schedule. Never take a double dose.
Special Populations
Pregnancy/Breast-feeding: Use of amphetamines during the early stages of pregnancy may cause birth defects. Amphetamines also increase the risk of premature delivery and low-birth-weight infants and may cause drug withdrawal symptoms in newborns. When this drug is considered crucial by your doctor, its potential benefits must be carefully weighed against its risks.
Amphetamines pass into breast milk. Nursing mothers who must take them should use infant formula.
Seniors: Seniors are more sensitive to this drug’s effects.
Jul
16
Adapalene
July 16, 2009 | Leave a Comment
Generic Name
Adapalene (uh-DAP-uh-lene)
Brand Name Differin
Type of Drug Anti-acne.
Prescribed For Acne.
General Information
Adapalene is similar to a retinoid. Retinoids are compounds related to vitamin A and are used in acne treatment. When adapalene is applied to an acne lesion, it modifies several of the processes involved in skin cell function. It reduces inflammation in the acne lesion and slows the formation of the material that fills the lesion. Very little adapalene is absorbed through the skin.
Cautions and Warnings
Do not use adapalene if you are allergic or sensitive to any of its ingredients. If you are sunburned, wait until your sunburn clears before applying adapalene to your skin. Avoid sun or sunlamp exposure while using adapalene. If you must be in the sun, be sure to apply sunscreen or wear protective clothing over areas where you have applied adapalene. Extreme wind or cold can also be irritating to skin where adapalene has been applied.
Adapalene can irritate the skin if used in combination with products such as medicated or abrasive soaps or cleansers, astringents, or soaps and cosmetics with a strong drying effect. Avoid products containing sulfur, resorcinol, or salicylic acid.
Adapalene can be highly irritating if it gets into your eyes or if it is applied to your lips, the angles of your nose, mucous membranes, cuts, abrasions, or sunburned or damaged skin. Avoid using depilatories or waxing while using adapalene.
Possible Side Effects
V Most common: redness, irritation, dryness, scaling, itching, and burning are common after applying adapalene to your skin. These effects usually occur during the first 24 weeks of adapalene use and subside as treatment continues. Symptoms may be severe enough to cause you to stop using adapalene; call your doctor if this happens to you.
V Rare: skin irritation, stinging sunburn, and worsening acne. Contact your doctor if you experience any side effect not listed above.
Drug Interactions
None known.
Usual Dose
Adult and Child (age 12 and over): Wash affected areas with a mild or soapless cleanser and apply a thin layer of adapalene at bedtime.
Child (under age 12): not recommended.
Overdosage
Chronic ingestion of adapalene can cause liver toxicity and other side effects associated with swallowing large amounts of vitamin A. Swallowing adapalene gel is extremely dangerous for pregnant women, who should not take more vitamin A than is contained in their prenatal vitamins. Infants who swallow adapalene should be taken to a hospital emergency room for treatment.
Special Information
Stop using adapalene and call your doctor if you develop a severe skin reaction or any sign of drug allergy or reaction (symptoms include rash, hives, itching, changes in complexion, and breathing difficulties or irregularities).
Adapalene may exacerbate your acne at first, but you should see improvement within 2 weeks.
If you must be in the sun, be sure to apply sunscreen or wear protective clothing over areas to which you have applied adapalene.
Using more than a thin film of adapalene does not produce better results and may be more irritating to the skin.
If you forget to apply a dose of adapalene, apply it as soon as you remember. If it is almost time for your next application of adapalene, skip the dose you forgot and continue with your regular schedule.
Special Populations
PregnancylBreast-feeding., Animal studies of adapalene have shown no effects on the fetus. Since the effect of adapalene on pregnant women is not known, the drug should be used only when the possible benefits outweigh the risks.
It is not known if adapalene passes into breast milk. Nursing mothers should use infant formula.
Seniors: Seniors may use this drug without special precautions.
Jul
16
Acyclovir
July 16, 2009 | Leave a Comment
Generic Name
Acyclovir
Brand Name Zovirax
Type of Drug Antiviral.
Prescribed For
Initial treatment and maintenance of genital herpes outbreaks; treatment of herpes zoster (shingles); and treatment of varicella (chickenpox).
General Information
Acyclovir is the only oral drug that reduces growth rates of the herpes virus and the related viruses, Epstein-Barr, varicella, and cytomegalovirus (CMV); both oral acyclovir and oral ganciclovir work against CMV Intravenous drugs, including acyclovir injection, may also be used for these viral infections; however, intravenous antiviral drugs are usually reserved for patients with HIV, cancer, or otherwise compromised immune systems.
Acyclovir is selectively absorbed into cells that are infected with the herpes simplex virus, where it is converted into its active form. Acyclovir works by interfering with the reproduction of viral DNA, slowing the growth of existing viruses. It has little effect on recurrent infections. To treat both local and systemic (whole-body) symptoms acyclovir must be given by intravenous injection or taken by mouth. Local symptoms may be treated with the ointment alone. Oral acyclovir may be taken every day to reduce the number and severity of herpes attacks in people who suffer 10 or more attacks a year; it may also be used to treat intermittent attacks as they occur, but treatment must be started as soon as possible to have the greatest effect.
Cautions and Warnings
Do not use acyclovir if you are allergic or sensitive to any of its ingredients. Do not use acyclovir ointment if you have had an allergic reaction to it or to the major component of the ointment base, polyethylene glycol. Do not apply acyclovir ointment inside the vagina because the polyethylene glycol base may cause irritation and swelling of sensitive vaginal tissue. Acyclovir ointment is not intended for use in the eye and should not be used to treat a herpes infection of the eye.
Renal failure has occurred in patients using oral acyclovir, in some cases resulting in death. People with kidney impairment should have dosages adjusted accordingly.
Maintain adequate hydration while taking oral acyclovir. Animal testing indicates that acyclovir may affect fertility in men. These effects may be reversible.
Possible Side Effects
Capsules, Suspension, and Tablets
✓ Most common: feeling unwell, headache, diarrhea, nausea, and vomiting.
✓ Less common: appetite loss, stomach gas, constipation, fatigue, rash, leg pains, sore throat, a bad taste in the mouth, sleeplessness, and fever.
♦ Rare: aching joints, weakness, and tingling in the hands or feet. Contact your doctor if you experience any side effect not listed above.
Ointment
✓ Most common: mild burning, irritation, rash, and itching. These effects are more likely to occur when treating an initial herpes attack than a recurrent attack. Women are 4 times more likely to experience burning than men.
Drug Interactions
• Do not apply acyclovir together with any other ointment or topical medication.
• Oral probenecid may decrease elimination of acyclovir from the body, which increases blood levels of oral or injected acyclovir, increasing the risk of side effects.
• Combining acyclovir and zidovudine (an HIV drug—also known as AZT) may lead to severe drowsiness and lethargy.
Food Interactions
Acyclovir may be taken with food if it upsets your stomach.
Usual Dose
Capsules, Suspension, and Tablets
Adult: genital herpes attack-200 mg every 4 hours, 5 times a day for 10 days. Recurrent infections-400 mg 3 times a day or 200 mg 5 times a day for 5 days. Suppressive therapy for chronic herpes-800 mg a day, every day for up to a year. Herpes zoster800 mg 5 times a day for 7-10 days.
Child (age 2 and over): Acyclovir has been given to children in daily doses as high as 36 mg per lb. of body weight without any unusual side effects.
Child (under age 2): not recommended.
If you have kidney disease, your doctor should adjust your dose according to the degree of functional loss.
Ointment: Apply every 3 hours, 6 times a day for 7 days. Apply enough medication to cover all visible skin lesions. About 1/2 in. of ointment should cover about 4 sq. in. of lesions. Your doctor may prescribe a longer course of treatment to prevent the delayed formation of new lesions over the duration of an attack. Begin using ointment at the first sign of an attack.
Overdosage
Overdose of oral acyclovir may lead to kidney damage due to deposits of acyclovir crystals in the kidneys. Other side effects include agitation, seizures, lethargy, and coma. The risk of experiencing toxic side effects from swallowing acyclovir ointment is quite small. In the case of overdose or accidental ingestion, call your poison control center. ALWAYS bring the prescription bottle or container.
Special Information
Use a finger cot or rubber glove when applying acyclovir ointment to protect against inadvertently spreading the virus. Be sure to apply the medication exactly as directed and to completely cover all lesions. Keep affected areas clean and dry. Loose-fitting clothing will reduce possible irritation of a healing lesion. If you skip several doses, or a day or more of treatment, the drug will not exert its maximum effect.
Acyclovir is not a cure for genital herpes. Herpes may be transmitted even if you do not have symptoms of active disease. To avoid giving the condition to a sexual partner, do not have intercourse while visible herpes lesions are present. A condom offers some protection against transmission of the herpes virus, but spermicidal products and diaphragms do not. Acyclovir alone will not prevent herpes transmission.
Initiate therapy at the first sign of symptoms.
Women with genital herpes have an increased risk of cervical cancer. Speak with your doctor about the need for an annual Pap smear.
Call your doctor if acyclovir does not relieve your symptoms, if side effects become severe or intolerable, or if you become pregnant or want to begin breast-feeding. Check with your dentist if you notice swelling or tenderness of the gums.
Avoid exposure to excessive sunlight or sunlamps because of unusual sensitivity caused by oral acyclovir.
Special Populations
Pregnancy/Breast-feeding: Acyclovir crosses into the circulation of the fetus. Animal studies have shown that large doses—up to 125 times the human dose—cause damage to both mother and fetus. While there is no information to indicate that acyclovir affects a human fetus, do not use it during pregnancy unless it is specifically prescribed by your doctor and the possible benefit outweighs the risk.
Acyclovir passes into breast milk in concentrations up to 4 times the concentration in blood, and it has been found in the urine of a nursing infant. Although no side effects have been found in nursing babies, mothers who must take acyclovir should use infant formula.
Seniors: Shingles attacks in people over age 50 tend to be more severe and respond best to acyclovir treatment if the drug is started within 48-72 hours of the appearance of the first rash. Seniors with reduced kidney function should be given a lower dose of oral acyclovir than younger adults.
Jul
16
Acetazolamide
July 16, 2009 | Leave a Comment
Generic Name
Acetazolamide (uh-sete-uh-ZOLE-uh-mide) [6j
Type of Drug
Carbonic-anhydrase inhibitor.
Prescribed For
Glaucoma and prevention or treatment of mountain sickness; also prescribed for epilepsy and treatment of drug-induced swelling or swelling due to congestive heart failure.
General Information
By blocking an enzyme in the body called carbonic anhydrase, acetazolamide produces a weak diuretic effect that helps to treat glaucoma by reducing pressure inside the eye. Acetazolamide’s antiseizure properties are also produced by its effect on carbonic anhydrase, though exactly how acetazolamide prevents seizure is not well understood.
Cautions and Warnings
Do not take acetazolamide if you are allergic or sensitive to any of its ingredients or to sulfa drugs.
Do not take acetazolamide if you have low blood sodium or potassium, diabetes, or serious kidney, liver, or Addison’s disease.
Possible Side Effects
Side effects of short-term therapy are usually minimal.
✓ Most common: nausea or vomiting; tingling feeling in the arms, legs, lips, mouth, or anus; appetite and weight loss; a metallic taste; increased frequency in urination; diarrhea; not feeling well; occasional drowsiness; and weakness. You may also experience rash, drug crystals in the urine, painful urination, low back pain, urinary difficulty, and low urine volume.
♦ Rare: Rare side effects can affect the liver, mental state, blood sugar, muscles, and senses. Contact your doctor if you experience any side effect not listed above.
Drug Interactions
• Avoid over-the-counter drug products that contain stimulants or anticholinergics, which tend to aggravate glaucoma and cardiac disease.
• Acetazolamide may increase blood concentrations of cyclosporine (used to prevent the rejection of transplanted organs).
• Acetazolamide may block or delay the absorption of primidone (prescribed for seizure).
• Avoid aspirin because it may enhance acetazolamide side effects.
• Combining diflunisal and acetazolamide can result in an excessive lowering of eye pressure.
Food Interactions
Acetazolamide may be taken with food if it upsets your stomach. Because acetazolamide can increase potassium loss, take this drug with potassium-rich foods such as bananas, citrus fruits, melons, and tomatoes.
Usual Dose
Glaucoma
Adult: 250-1000 mg a day.
Child: 4.5-6.75 mg per lb. a day in divided doses.
Diuresis in congestive heart failure or drug-induced swelling Adult: 250-375 mg a day.
Child: 2.25 mg per lb., once daily in the morning.
Epilepsy: 375-1000 mg a day in divided doses.
Mountain Sickness: 500-1000 mg a day. If possible begin medication 24-48 hours before ascent.
Overdosage
Symptoms of overdose include drowsiness, loss of appetite, nausea, vomiting, dizziness, tingling in the hands or feet, weakness, tremors, or ringing or buzzing in the ears. In case of overdose, induce vomiting as soon as possible with ipecac syrup—available at any pharmacy—and take the victim to a hospital emergency room. ALWAYS bring the prescription bottle or container.
Special Information
Acetazolamide may cause minor drowsiness and confusion, particularly during the first 2 weeks of therapy. Be careful when driving or doing any task that requires concentration.
Call your doctor if you develop sore throat, fever, unusual bleeding or bruises, tingling in the hands or feet, rash, or unusual pains.
Acetazolamide can increase sensitivity to the sun. Avoid prolonged sun exposure and protect your eyes while taking this drug.
Be sure to drink plenty of water or fluids while taking acetazolamide.
If you forget a dose, take it as soon as you remember. If it is almost time for your next dose, skip the dose you forgot and continue with your regular schedule. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: High doses of this drug may cause birth defects or interfere with fetal development. When this drug is considered crucial by your doctor, its potential benefits must be carefully weighed against its risks.
Small amounts of acetazolamide may pass into breast milk. Nursing mothers who must take this drug should use infant formula.
Seniors: Seniors are more sensitive to this drug’s side effects.