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.
Jul
16
Alprazolam
July 16, 2009 | Leave a Comment
Generic Name
Alprazolam (al-PRAY-zoe-lam) CGI
Brand Names
Niravam Xanax Xanax XR Type of Drug
Benzodiazepine sedative.
Prescribed For
Generalized anxiety disorder and anxiety associated with depression; panic disorder with or without agoraphobia.
General Information
Alprazolam is a member of a group :)f drugs known as benzodiazepines. Benzodiazepines directly affect the brain. They can relax you and make you more tranquil or sleepier, or they can slow nervous system transmissions in such a way as to act as an anticonvulsant. Many doctors prefer benzodiazepines to other drugs that can be used to similar effect because they tend to be safer, have fewer side effects, and are usually as effective, if not more so.
Cautions and Warnings
Do not take alprazolam if you know you are allergic or sensitive to it or to another benzodiazepine drug, including clonazepam.
Alprazolam can aggravate narrow-angle glaucoma, but you may take it if you have open-angle glaucoma and are receiving therapy for it.
Other conditions where alprazolam should be avoided are: severe lung disease, sleep apnea (intermittent cessation of breathing during sleep), liver disease, drunkenness, and kidney disease. In each of these conditions, the depressive effects of alprazolam may be enhanced or could be detrimental to your overall condition.
Alprazolam should not be taken by psychotic patients because it is not effective for them and can trigger unusual excitement, stimulation, and rage.
Alprazolam is meant to be used for no more than 3-4 months in a row. Your condition should be reassessed before continuing your medicine beyond that time.
Alprazolam may be addictive. When used to treat panic disorder, alprazolam is frequently prescribed in doses exceeding 4 mg a day. Studies show that these higher doses may cause physical and emotional dependence, making it very difficult to stop taking the drug. Drug withdrawal may develop if you stop taking it after only 4 weeks of regular use but is more likely after longer use and at higher doses. It may start with anxiety and progress to tingling in the hands or feet, sensitivity to bright light, sleep disturbances, cramps, tremors, muscle tension or twitching, poor concentration, flu-like symptoms, fatigue, appetite loss, sweating, and changes in mental state. Severe withdrawal symptoms may include seizures.
Your dosage should be reduced gradually (0.5 mg decrease every 3 days) to prevent drug withdrawal symptoms.
Possible Side Effects
V Most common: mild drowsiness during the first few days of therapy. Weakness and confusion may occur, especially in seniors and in those who are sickly. If these effects persist, contact your doctor.
V Less common: depression, lethargy, disorientation, headache, inactivity, slurred speech, stupor, dizziness, tremors, constipation, dry mouth, nausea, inabilityto control urination, Possible Side Effects (continued)
sexual difficulties, irregular menstrual cycle, changes in heart rhythm, low blood pressure, fluid retention, blurred or double vision, itching, rash, hiccups, nervousness, inability to fall asleep, and occasional liver dysfunction. If you experience any of these symptoms, stop taking the medicine and contact your doctor immediately.
V Rare: withdrawal seizures. 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
• Alprazolam is a central-nervous-system depressant. Avoid alcohol, other sedatives, narcotics, barbiturates, monoamine oxidase inhibitor (MAGI) antidepressants, antihistamines, and antidepressants. Taking alprazolam with these drugs may result in excessive depression, tiredness, sleepiness, breathing difficulties, or related symptoms.
• Smoking may reduce the amount of alprazolam in your blood by 50%. Smokers may need larger doses.
• The effects of alprazolam may be prolonged when taken together with cimetidine, contraceptive drugs, disulfiram, fluoxetine, isoniazid, itraconazole, ketoconazole, metoprolol, probenecid, propoxyphene, propranolol, and valproic acid.
• The effects of some benzodiazepines may be decreased by rifampin.
• Theophyllines may reduce alprazolam’s sedative effects.
• If you take antacids, separate them from your alprazolam dose by at least 1 hour to prevent them from interfering with the absorption of alprazolam into the bloodstream.
• Alprazolam may raise digoxin blood levels and the chances of digoxin toxicity.
• The effect of levodopa + carbidopa may be decreased if it is taken together with alprazolam.
• Combining alprazolam with phenytoin may increase phenytoin blood concentrations and the chances of phenytoin toxicity.
Food Interactions
Alprazolam is best taken on an empty stomach but may be taken with food if it upsets your stomach.
Usual Dose
Anxiety Disorder
Adult: 0.25-0.5 mg 3 times a day. Dosage must be tailored to your individual needs with a maximum dose of 4 mg a day. Child (under age 18): not recommended.
Panic Disorder
Adult: 1 -10 mg a day.
Child (under age 18): not recommended.
Overdosage
Symptoms of overdose are confusion, sleepiness, poor coordination, lack of response to pain such as a pinprick, loss of reflexes, shallow breathing, low blood pressure, and coma. The victim should be taken to a hospital emergency room. ALWAYS bring the prescription bottle or container.
Special Information
Alprazolam can cause tiredness, drowsiness, inability to concentrate, or related symptoms. Be careful if you are driving, operating machinery, or performing other activities that require concentration.
Anyone taking alprazolam for more than 3 or 4 months at a time may have a drug withdrawal reaction if the medicine is stopped suddenly (see “Cautions and Warnings”). Do not stop taking alprazolam, or increase or decrease the dosage, without first consulting your doctor.
If you forget a dose of alprazolam, take it as soon as you remember. If it is almost time for your next dose, skip the dose you forgot and return to your regular schedule. Do not take a double dose. If you take Xanax XR, take your full daily dose once a day in the morning. Do not chew or crush Xanax XR tablets.
Special Populations
Pregnancy/Breast-feeding: Alprazolam may cause birth defects if taken during the first 3 months of pregnancy. You should avoid alprazolam while pregnant.
Alprazolam may pass into breast milk. Nursing mothers who must take alprazolam should use infant formula.
Seniors: Seniors, especially those with liver or kidney disease, are more sensitive to the effects of alprazolam and generally require smaller doses to achieve the same effect.
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
Aliskiren
July 16, 2009 | Leave a Comment
Generic Name
Aliskiren (ah-LISS-kih-ren)
Brand Name Tekturna
Combination Product
Generic Ingredients: Aliskiren + Hydrochlorothiazide Tekturna HCT
Type of Drug
Direct renin inhibitor. Prescribed For
High blood pressure.
General Information
Renin is produced by the kidney in response to a reduction in blood volume and the amount of blood passing through the kidney. Once in the blood, renin reacts with other hormones to forma very powerful blood vessel constrictor called angiotensin E that directly raises blood pressure. Renin also works with a hormore called aldosterone to raise blood pressure and it prevents sodium from being eliminated from the body. This increases the amount of water in the system, raising blood volume and increasing blood pressure. Aliskiren inhibits renin and all of its actions, thereby !owering blood pressure. The blood pressure lowering is usually seen with 2 weeks of starting on treatment. When aliskiren treatment is stopped, blood pressure gradually rises to pre-treatment levels. Only about 21/2% of any dose is absorbed into the blood and it takes about a week to reach a steady level in the blood. Most of the drug that is absorbed is broken down in the liver. The rest passes out of the body unchanged in the urine. Aliskiren may be used alone or with other hypertensives, however its use with maximum doses of an ACE inhibitor has not been adequately studied.
Cautions and Warnings
Do not take aliskiren if you are allergic or sensitive to any of its ingredients.
Angioedema swelling of the face, hands or feet, tongue, or throat can occur at any time during aliskiren treatment. If this happens, stop taking the medicine and go to your doctor’s office or a hospital emergency room for treatment. This reaction can interfere with your breathing.
The safety of aliskiren in people with moderate to severe kidney disease is not known.
The combination of aliskiren and an ACE inhibitor can lead to high blood levels of potassium.
Aliskiren may be less effective in some black patients with high blood pressure, especially when dietary salt intake is high. Nevertheless, it should still be considered a useful blood pressure treatment.
Possible Side Effects
✓ Common: nausea, dizziness, and sleeplessness.
✓ Less common: diarrhea, abdominal pain, upset stomach, GERD, cough, rash high blood uric acid levels, gout, kidney stones, headache, nose and throat irritation, fatigue, upper respiratory infection, and back pain.
✓ Rare: difficulty breathing; swelling of the hands, face, eyes, or whole body; and seizures. Contact your doctor if you experience any side effect not listed above.
Drug Interactions
• Mixing aliskiren with irbesartan can reduce the amount of aliskiren into the blood by 50%. This may reduce the effectiveness of aliskiren.
• Aliskiren has been studied together with both hydrochlorothiazide and valsartan and can be combined with them in blood pressure management. It has been used with amlodipine but may not be better than high dose amlodipine alone.
• Aliskiren’s interaction with ACE inhibitors is not yet fully known.
• Atorvastatin and ketoconazole slow the breakdown of aliskiren, resulting in an increase of aliskiren blood levels by 50% or more. Dosage adjustment may be necessary.
Aliskiren can reduce blood levels of the diuretic furosemide, reducing the diuretic’s effect.
Food Interactions
Aliskiren can be taken without regard to food or meals. Avoid taking it with high fat meals because they can drastically reduce the amount of aliskiren absorbed into the blood.
Usual Dose
Adult (age 18 and over)
Tekturna: 50-300 mg at the same time every day. Tekturna HCT. 1 tablet a day.
Child: not recommended. Overdosage
The most likely symptom of overdose is low blood pressure (symptoms include dizziness and fainting). If you think you have taken an overdose, call your doctor or go to a hospital emergency room. ALWAYS bring the prescription bottle or container.
Special Information
Call your doctor at once if you develop swelling of the face, eyes, lips, tongue, or throat; difficulty swallowing or breathing; hoarseness; or other signs of a drug reaction or allergy.
If you forget a dose, take it as soon as you remember. If you do not remember until 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: Aliskiren can injure or kill a developing fetus. Pregnant women should not take aliskiren. Women who suspect they are pregnant must call their doctor at once and stop taking aliskiren when pregnancy is confirmed. In those rare cases where aliskiren is considered life-saving for the mother and there is no substitute for aliskiren, your doctor may advise that you continue on the medicine and then check your baby’s development with periodic ultrasound examinations.
It is not known if this drug passes into breast milk. Nursing mothers should use infant formula.
Seniors: Seniors may have higher blood levels of aliskiren and be more susceptible to drug side effects, but starting dose adjustment is not required.
Jul
16
Albuterol
July 16, 2009 | Leave a Comment
Generic Name
Albuterol (al-BUE-tuh-rawl) 91
Brand Names
AccuNeb Proventil HFA
ProAir HFA Ventolin HFA
Proventil* Vospire ER
Combination Products
Generic Ingredients: Albuterol + 1pratropium Bromide Combivent DuoNeb
The:nformation in this profile also applies to the following drugs:
Generic Ingredient: Levalbuterol Xopenex
Generic Ingredient., Pirbuterol Maxair
*Some products in this brand-name group are alcohol- or sugar-free. Consult your pharmacist.
Type of Drug Bronchodilator.
Prescribed for
Bronchospasm associated with asthma or other obstructive pulmonary diseases, or induced by exercise.
General Information
Albuterol is similar to other bronchodilator drugs, such as metaproterenol and isoetharine, but it has a weaker effect on nerve receptors in the heart and blood vessels; therefore, it is somewhat safer for people with heart conditions. Levalbuterol is a special form of albuterol that carries a lower risk of side effects.
Cautions and Warnings
Do not use Albuterol if you are allergic or sensitive to any of its ingredients. Albuterol should be used with caution by people with a history of angina pectoris (a condition characterized by brief attacks of chest pain), heart disease, irregularities in heart beat, high blood pressure, stroke or seizure, diabetes, thyroid disease, prostate disease, or glaucoma. Excessive use of albuterol inhalants may worsen asthma or other respiratory conditions, and may increase breathing difficulties rather than relieve them. In the most extreme cases, people have had heart attacks after using excessive amounts of inhalant.
Possible Side Effects
V Most common: worsening of asthma, ear infection, upper respiratory infection, stuffy nose, dizziness, headache, nausea, vomiting, and muscle cramps.
♦ Less common: angina, abnormal heart rhythms, rapid heartbeat and heart palpitations, allergic reaction, fever, and tremors.
Drug Interactions
• Albuterol’s effects on the cardiovascular system may be increased by monoamine oxidase inhibitor (MA01) and tricyclic antidepressants. These drugs should not be administered together or within 2 weeks of discontinuation of MAOls or tricyclic antidepressants.
• Beta-blocking drugs such as propranolol not only block the effects of albuterol but may cause severe bronchospasm in people with asthma.
• Albuterol may reduce the amount of digoxin in the blood of people taking both drugs. Digoxin dose adjustment may be required.
• Albuterol may exacerbate certain effects of non-potassium sparing diuretics (loop or thiazide diuretics).
Food Interactions
Albuterol tablets are more effective when taken on an empty stomach-1 hour before or 2 hours after meals—but can be taken with food if they upset your stomach.
Usual Dose
Albuterol and Pirbuterol Inhalation
Adult and Child (age 4 and over): 1-2 puffs every 4-6 hours. Asthma triggered by exercise may be prevented by taking 2 puffs 15 minutes before exercising.
Albuterol Inhalation Solution
Child (age 2-12): starting dose-0.63 mg or 1.25 mg 3 or 4 times a day. Deliver over 5-15 minutes by nebulizer.
Levalbuterol Inhalation Solution
Adult and Child (age 12 and over): 0.63 mg 3 times a day every 6-8 hours. Some people may benefit from 1.25 mg at each dose. Deliver over 5-15 minutes by nebulizer.
Child (age 6-11): 0.31 mg 3 times a day every 6-8 hours, by nebulizer.
Albuterol Inhalation Aerosol
Adult and Child (age 4 and over): 2 inhalations every 4-6 hours. Adults and children age 4 and over may prevent asthma brought on by exercise by inhaling twice 15 minutes before exercising.
Albuterol Sustained-Release Tablets
Adult and Child (age 12 and over): 4-8 mg every 12 hours. Dosage may be cautiously increased to a maximum of 32 mg a day. People being switched from regular to sustained-release tablets generally take the same dosage per day, in fewer tablets—for example, a 4-mg tablet every 12 hours (1 dose) instead of a 2-mg tablet every 6 hours (2 doses).
Child (age 6-12): 4 mg every 12 hours.
Overdosage
Overdose of albuterol inhalation usually results in exaggerated side effects, including chest pain and high blood pressure. People who inhale too much albuterol should see a doctor. Overdose of albuterol tablets may lead to changes in heart rate, palpitations, unusual heart rhythm, chest pain, high blood pressure, fever, chills, cold sweats, nausea, vomiting, and dilation of the pupils. Convulsions, sleeplessness, anxiety, and tremors may also develop, and the victim may collapse. If the albuterol overdose was taken within the past 1/2 hour, give the victim syrup of ipecac to induce vomiting. Do not give ipecac if the victim is unconscious or convulsing. If symptoms have already begun to develop, the victim may need to be taken to a hospital emergency room. Call for instructions, and ALWAYS bring the prescription bottle or container.
Special Information
If you are inhaling albuterol, be sure to follow the inhalation instructions that come with the product. The drug should be inhaled during the second half of your inward breath, since this will allow it to reach deeper into your lungs. Wait about 1-2 minutes between inhalations. Do not inhale albuterol if you have food or anything else in your mouth.
Do not take more albuterol than your doctor prescribes. Taking more than you need can worsen your symptoms. If your condition worsens after taking your medicine, call your doctor at once and stop taking it.
Call your doctor immediately if you develop chest pain, palpitations, rapid heartbeat, muscle tremors, dizziness, headache, facial flushing, or urinary difficulty, or if you continue having breathing difficulties after taking the medicine.
Do not crush or chew the extended-release tablets.
If you forget a dose of albuterol, take it as soon as you remember. If it is almost time for your next dose, skip the one you forgot. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: When used during childbirth, albuterol can slow or delay natural labor. It can cause rapid heartbeat and high blood sugar in the mother and rapid heartbeat and low blood sugar in the baby. Albuterol also causes birth defects in animal studies. When your doctor considers this drug crucial, its benefits must be cautiously weighed against its risks.
It is not known if albuterol passes into breast milk. Nursing mothers who must take it should use infant formula.
Seniors: Seniors with cardiovascular disease should use albuterol with caution.
Jul
16
Adefovir
July 16, 2009 | Leave a Comment
Generic Name
Adefovir (ah-deh-FOE-veer)
Brand Name Hepsera
Type of Drug Antiviral.
Prescribed For
Chronic active hepatitis B in adults.
General Information
Hepatitis B is one of several different types of hepatitis, a viral infection of the liver. Adefovir is an antiviral drug that can reduce the amount of hepatitis B virus in the bloodstream and slow its spread to healthy liver tissue, however, it cannot cure chronic hepatitis B. People with chronic hepatitis B may develop liver cirrhosis or liver cancer and it is not known if adefovir can prevent these conditions from occurring. Like other viruses and bacteria, the hepatitis B virus can become resistant to the effects of adefovir.
Adefovir works against the hepatitis C virus in a way similar to that of certain human immunodeficiency virus (HIV) drugs. It interferes with an enzyme called reverse transcriptase, which is an essential component of the viral reproduction process. Almost half of each dose is eliminated via the urine within 24 hours of taking it.
Cautions and Warnings
Do not take adefovir if you are allergic or sensitive to any of its ingredients.
Adefovir can be toxic to the kidneys, especially in people who already have some kidney problems. Since it is eliminated from the body through the kidneys, people with kidney disease are often given lower doses of adefovir.
In some cases, hepatitis can become severely aggravated upon discontinuation of adefovir. Your doctor should check your liver for’ 2 weeks after the drug is stopped. it is possible that antiviral therapy may have to be re-started.
Adefovir has some activity against the human immunodeficiency virus (HIV). An HIV blood test is recommended before starting adefovir treatment. If you are HIV positive, adefovir could make the HIV virus resistant to future antiviral drugs.
People taking adefovir can develop liver disease, liver enlargement, fat degeneration, and lactic acidosis (potentially fatal metabolic imbalance). This may be a reason for your doctor to stop your adefovir treatment. This occurs most frequently in obese women.
Possible Side Effects
In studies, side effects reported in the treated group were similar in frequency to placebo.
✓ Most common: weakness, headache, stomach pain, and nausea.
✓ Less common: intestinal gas, diarrhea, and upset stomach.
Drug Interactions
This drug was studied extensively in an attempt to predict possible drug interactions. No major interaction problems have been revealed.
• Taking drugs that can be toxic to the kidneys (such as amino-glycosides, cyclosporine, nonsteroidal anti-inflammatory drugs (NSAIDs), tacrolimus, and vancomycin) together with adefovir can lead to the more rapid appearance of kidney damage.
• Ibuprofen, when taken in dosages of 800 mg 3 times a day, will increase adefovir blood levels by about 20 %, however the importance of this finding is unknown.
Food Interactions
Adefovir may be taken without regard to food or meals.
Usual Dose
Adults: 10 mg once a day. People with kidney disease requiring dialysis may take only 10 mg a week. The exact dosage is based on the severity of kidney disease.
Child: not recommended.
Overdosage
Gastrointestinal symptoms are the most likely outcome of an adefovir overdose. Take the victim to a hospital emergency room. ALWAYS bring the prescription bottle or container.
Special Information
Practice safe sex and safe needle use. People taking adefovir may still spread hepatitis B through sexual contact or by sharing needles. Practice safe sex using condoms and dental dams.
Do not share personal items that can have blood or body fluids on them, such as toothbrushes or razor blades.
Try to take adefovir at the same time every day.
Adefovir must be taken continuously to maintain its effectiveness. Be sure to keep enough adefovir on hand so that you do not run out of medicine.
If you take adefovir on a regular schedule and forget a dose, take it as soon as you remember. If it is almost time for your next dose, skip the forgotten dose and continue with your regular schedule. Do not take a double dose of this medicine. Call your doctor if you forget 2 or more doses in a row. Skipping or forgetting too many doses can make the hepatitis C virus resistant to adefovir.
Call your doctor at once if you feel very weak or tired, cold (especially in your arms and legs), dizzy or lightheaded, have unusual muscle pain, trouble breathing, stomach pain with nausea and vomiting, or have a fast or irregular heartbeat. These could be signs of lactic acidosis.
Call your doctor if you experience jaundice (symptoms include yellowing of the skin or whites of the eyes), appetite loss for a few days or more, lower stomach pain, nausea, dark urine, or bowel movements that are light in color. These could be signs of liver toxicity.
Special Populations
Pregnancy/Breast-feeding: Animal studies with adefovir have revealed a tendency for some birth defects when the dosage administered was more than 20 times the average human dose. There is no information on the effect of adefovir during pregnancy. The company that produces adefovir has established a registry to collect information on pregnant women who take this drug. When this drug is considered crucial by your doctor, its potential benefits may be carefully weighed against its risks.
It is not known if adefovir passes into breast milk. Nursing mothers who must take it should use infant formula.
Seniors: Seniors may be more sensitive to adefovir’s side effects because of the natural loss of kidney function that occurs with advancing age.
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
Acitretin
July 16, 2009 | Leave a Comment
Generic Name
Acitretin (ah-sih-TREH-tin)
Brand Name
Soriatane
Type of Drug Antipsoriatic.
Prescribed For
Severe psoriasis; also prescribed for a variety of other skin conditions.
General Information
Acitretin is related to vitamin A and prescription drugs such as etretinate and isotretinoin. Acitretin is produced when etretinate is broken down in the body and its effects are very similar to etretinate. The way that acitretin works is not known. Its full benefit is not likely to be seen until you have taken it for 2 or 3 months. Your doctor is urged to use this medication only in cases of severe psoriasis that have not responded to other treatments because of the risks associated with acitretin.
Cautions and Warnings
Do not take acitretin if you are allergic or sensitive to any of its ingredients. Women who take acitretin must not be pregnant during treatment or for 3 years after the completion of treatment. It is not known if acitretin taken by men before conception is also a risk to the fetus.
A small number of people taking this drug have developed liver damage including jaundice (symptoms include yellowing of the skin and whites of the eyes). Acitretin has also been associated with hepatitis. People with kidney failure have much less acitretin in their blood than people with normal kidneys. Caution is advised for people with liver or kidney damage.
Cholesterol levels rise in 25-560/6 of people taking acitretin. Very large increases in triglycerides may be responsible for the few cases of pancreatitis (pancreas inflammation) that have been reported. Your doctor should measure your blood fat levels before you start taking acitretin and monitor them weekly or biweekly until your response to the medication has been determined. People with diabetes, who are obese, or who have a history of these conditions are at increased risk for high cholesterol levels as are people who drink alcohol excessively.
Drugs similar to acitretin have been associated with pseudo-tumor cerebri (increased pressure in the brain). Symptoms of pseudotumor cerebri include visual disturbances, headache, nausea, and vomiting. Report these or any unusual symptoms to your doctor at once.
People taking acitretin who had spine or bone—including knee or ankle—problems before starting the drug may find that their problems worsen while on the drug.
People with diabetes may find it more difficult to control their blood sugar while on acitretin.
Possible Side Effects
✓ Most common: hair loss or change in texture, peeling skin, and inflammation of the lips.
✓ Common: dry eyes, chills or stiffness, dry skin, fingernail problems, itching, rash, tingling in the hands or feet, increased sensory awareness, loss of some sections of skin, sticky skin, and runny nose.
✓ Less common: drying and thickening of eye tissue; eye irritation; eyebrow or eye lash loss; changes in appetite; swelling; fatigue; hot flashes; flushing; sinus irritation; headache; pain; earache; insomnia; depression; Bell’s palsy; crusting of the eyelids; blurred vision; conjunctivitis (pinkeye); double vision; itchy eyes or eyelids; cataracts; swelling inside the eye; unusual sensitivity to bright light; dry mouth; nausea; stomach pain; diarrhea; bleeding gums; joint; back; and muscle pain; and worsening of existing spinal problems.
✓ 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
• People combining acitretin and glyburide (an antidiabetic) may have unusually low blood-sugar levels. Your doctor may have to adjust your diabetic treatment program while you are taking acitretin.
• Combining acitretin with methotrexate increases the risk of liver damage.
• Acitretin reduces the effectiveness of low-progestin oral contraceptives (the “mini-pill”). If you are taking one of these contraceptives, switch to another type of birth control and use at least one other contraceptive method for at least 3 years after treatment is completed.
• Combining alcohol with acitretin produces acitretin’s parent compound, etretinate. Etretinate stays in the body much longer than acitretin and may therefore affect the fetus for an even longer period of time than might acitretin. Avoid alcoholic beverages.
• Do not take a vitamin A supplement that has more than the standard minimum daily requirement (1000 mcg). Excess vitamin A plus acitretin exposes you to possible vitamin A toxicity.
• Combining acitretin with tetracyclines may increase the risk of severe pressure on the brain.
• Notify your doctor if you are taking etretinate, isotretinoin, oral or topical tretinoin, or cyclosporine.
Food Interactions
Acitretin is best absorbed when taken with food or meals. Usual Dose
Adult: 25-50 mg a day with your main meal. Dosage may increase after 4 weeks to 25-75 mg a day. Dosage must be individualized to your specific needs.
Child: not recommended.
Overdosage
Symptoms of acitretin overdose include vomiting, headache, and vertigo. Call your local hospital emergency room or local poison control center for more information. ALWAYS bring the prescription bottle or container.
Special Information
Contact your doctor at once if you become pregnant while taking acitretin or in the 3 years following treatment. The risk of birth defects persists as long as the drug is in your body. In one case,
small amounts of etretinate were found in blood plasma and fatty tissue more than 5 years after treatment.
Some people have experienced decreased night vision while taking acitretin. Be careful when driving at night.
Report visual disturbances, headache, nausea, vomiting, or anything unusual to your doctor at once.
Do not drink any alcoholic beverages during acitretin treatment and for at least 2 months after treatment has been completed. Avoid excess vitamin A (see “Drug Interactions”).
Some birth control methods, including low-dose progestin contraceptives and tuba) ligation may fail while taking this drug. Use at least one additional form of contraception while taking acitretin to avoid pregnancy.
You may have problems tolerating contact lenses while you are taking acitretin.
Do not donate blood while taking acitretin or for 3 years afterwards because your blood might be given to a pregnant woman.
Avoid exposure to excessive sunlight or to sunlamps because of unusual sensitivity caused by acitretin.
If you forget to take a dose of acitretin, take it with food 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.
A worsening of psoriasis may initially occur with treatment, and the full benefit of acitretin may not be seen for 2-3 months.
Special Populations
Pregnancy/Breast-feeding: Acitretin causes birth detects and may damage the fetus. Women who take acitretin must be sure they are not pregnant before starting therapy by using reliable contraception for at least 1 month before starting the drug and taking a pregnancy test within 1 week of starting treatment. Women must use 2 reliable contraceptive methods during treatment and for 3 years following the completion of treatment.
Acitretin may pass into breast milk. Nursing mothers who must take this drug should use infant formula.
Seniors: Seniors have twice as much acitretin in their blood as do younger adults but may take acitretin without special precaution.
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.
Jul
16
Acetaminophen
July 16, 2009 | Leave a Comment
Generic Name
Acetaminophen (uh-SEE-tuh-MIN-uh-fen) RE
Brand Names
Acephen Mapap-
Aceta Mapap Children’s
Acetaminophen Uniserts Mapap Extra Strength
Apacet Mapap Infant Drops
Aspirin Free Anacin Maximum Maranox
Strength Neopap
Aspirin Free Pain Relief Oraphen-PD
Dynafed, Children’s JR Panadol*
Dynafed EX Redutemp
Dynafed Extra Strength Silapap
Feverall Silapap Children’s
Feverall, Infants Silapap Infants
Genapap” Tapanol
Genebs Tempra*
Liquiprin Tylenol*
*Some products in this brand-name group are alcohol- or sugar-free. Consult your pharmacist.
Type of Drug
Antipyretic and analgesic.
Prescribed For
Relief of pain and fever for people who cannot or do not want to take aspirin or a nonsteroidal anti-inflammatory drug (NSAID). Acetaminophen may be given to children about to receive a
DTP vaccination to reduce the fever and pain that commonly follow the vaccination.
General Information
Acetaminophen is generally used to relieve pain and fever associated with the common cold, flu, viral infections, or other disorders where pain or fever may occur. It is also used to relieve pain in people who are allergic to aspirin, or those who cannot take aspirin because of potential interactions with other drugs such as oral anticoagulants. It can be used to relieve pain from a variety of sources, including arthritis, headache, muscle ache, menstrual cramping, and tooth and periodontic pain, although it does not reduce inflammation.
Cautions and Warnings
Do not take acetaminophen if you are allergic or sensitive to any of its ingredients. Do not take acetaminophen for more than 10 days in a row (5 days for children) unless directed by your doctor. Do not take more than is prescribed or recommended on the package.
Use this drug with extreme caution if you have kidney or liver disease or viral infections of the liver. Large amounts of alcohol increase the liver toxicity of large doses or overdoses of acetaminophen. Avoid alcohol if you regularly take acetaminophen. Some people are more sensitive to this effect than others.
Possible Side Effects
This drug is relatively free from side effects when taken in recommended doses. For this reason it has become extremely popular, especially among those who cannot take aspirin. V Rare: large doses or long-term use may cause liver dam-
age, rash, itching, fever, lowered blood sugar, stimulation,
yellowing of the skin or whites of the eyes, and/or a change
in the composition of your blood. Contact your doctor if
you experience any side effect not listed above.
Drug Interactions
o Large doses of barbiturate drugs, carbamazepine, phenytoin and similar drugs, izoniazid, rifampin, and sulfinpyrazone may increase the chances of liver toxicity if taken with acetaminophen.
• Alcoholic beverages increase the chances for liver toxicity
and possible liver failure associated with acetaminophen.
Food Interactions
None known.
Usual Dose
Adult and Child (age 12 and over): 325-650 mg 4-6 times a day,
or 1000 mg 3-4 times a day. Avoid taking more than 4 g (twelve
325-mg tablets) a day for long periods of time. Child (age 11): 480 mg 4-5 times a day. Child (age 9-10): 400 mg 4-5 times a day. Child (age 6-8): 320 mg 4-5 times a day. Child (age 4-5): 240 mg 4-5 times a day. Child (age 3): 160 mg 4-5 times a day. Child (age 1-2): 120 mg 4-5 times a day.
Child (age 4-11 months): 80 mg 4-5 times a day. Child (under age 4 months): 40 mg 4-5 times a day.
Overdosage
Acetaminophen is a commonly used ingredient in many over-the-counter (OTC) medications. Always check the list of ingredients when using more than one OTC medication to ensure that the combined dosage is within guidelines and to avoid accidental overdose.
Acute acetaminophen overdose may cause nausea, vomiting, sweating, appetite loss, drowsiness, confusion, abdominal tenderness, low blood pressure, abnormal heart rhythms, yellowing of the skin and whites of the eyes, and liver and kidney failure. Liver damage has occurred with 12 extra-strength tablets or 18 regular-strength tablets, but most people need larger doses-20 extra-strength or 30 regular-strength tablets—to damage their livers. Regular use of large doses for long periods-30004000 mg a day for a year—can also cause liver damage, especially if alcohol is involved. 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 acetaminophen bottle or container.
Special Information
Unless abused, acetaminophen is a beneficial, effective, and relatively nontoxic drug. Follow package directions and call your doctor if acetaminophen does not relieve pain in 10 days for adults or 5 days for children. Call your doctor if fever gets worse or persists longer than 3 days.
Alcoholic beverages will worsen the liver damage that acetaminophen can cause. People who take this drug on a regular basis should limit their alcohol intake.
If you forget to take a dose, take it as soon as you remember. If it is within an hour of your next dose, skip the dose you forgot and continue with your regular schedule. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: Acetaminophen ‘is considered safe during pregnancy when taken in usual doses. Taking continuous high doses of the drug may cause birth defects or interfere with fetal development. Three cases of congenital hip dislocation appear to have been associated with acetaminophen. Check with your doctor before taking this drug if you are or might be pregnant.
Small amounts of acetaminophen may pass into breast milk, but the drug is considered harmless to nursing infants.
Seniors: Seniors may take acetaminophen as directed by a doctor.