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
5
NSAIDs (nonsteroidal anti-inflammatory drugs)
July 5, 2009 | Leave a Comment
NSAIDs
After the roller-coaster ride with cortisone, you would think that the medical establishment would have been more careful about the next big thing. Maybe doctors were so anxious to find something safer for arthritis that they didn’t appreciate that they might be jumping from the frying pan into the fire.
Aspirin was the first nonsteroidal anti-inflammatory drug (NSAID). It was introduced in 1899 and was a mainstay of arthritis treatment for most of a century. Aspirin works a little differently from other drugs in this class and has advantages that make it unique. For almost 100 years aspirin was the Rodney Dangerfield of the drugstore. It got relatively little respect. Because aspirin was available over the counter, it took physicians a long time to appreciate how valuable it could be against heart attacks, strokes, and even cancer. Because it has been around for so many years, doctors have often assumed that newer medicines would provide better pain relief. And they (and their patients) have often been disappointed.
The launch of prescription indomethacin (Indocin) in 1965 really put NSAIDs on the map. These drugs became some of the most successful pharmaceuticals of their time. Whenever a new anti-inflammatory drug came along, it generated tremendons excitement. Drugs like sulindac (Clinoril), piroxicam (Feldene), ibuprofen (Motrin), and naproxen (Naprosyn) had their time in the limelight. Then along would come something newer and doctors would switch their allegiance.
NON-ASPIRIN NSAIDS
• Celecoxib (Celebrex)
• Diclofenac (Cataflam, Voltaren)
• Etodolac (Lodine)
• Fenoprofen (Nalfon)
• Flurbiprofen (Ansaid)
• Ibuprofen (Advil, Motrin, etc.)
• Indomethacin (Indocin)
• Ketoprofen (Orudis, Oruvail)
• Ketorolac (Toradol)
• Meloxicam (Mobic)
• Nabumetone (Relafen)
• Naproxen (Aleve, Anaprox, Naprosyn)
• Oxaprozin (Daypro)
• Piroxicam (Feldene)
• Sulindac (Clinoril►
• Tolmetin (Tolectin)
Those of us who have observed this game of medicinal musical chairs for more than 40 years have become somewhat cynical about this class of pain relievers. The fickle switching from one drug to another suggests to us that no particular NSAID really stands out. There have not been really great head-to-head clinical trials that prove one drug is superior to another or significantly safer than others in the class.
If truth be told, these drugs really don’t work all that well when it comes to relieving the pain and inflammation of arthritis, especially of the knee. Despite the fact that tens of millions of people have spent countless billions of dollars on these medications, there are surprisingly few data demonstrating long-term benefit with their use. A scientific analysis of 23 different studies was published in the British Medical Journal in 2004. This meta-analysis involved more than 10,000 patients and revealed a shocking discovery: “NSAIDs can reduce short-term pain in osteoarthritis of the knee slightly better than placebo, but the current analysis does not support prolonged use of NSAIDs for this condition. As serious adverse effects are associated with oral NSAIDs, only limited use can be recommended.”‘
What a bombshell! This review of the world’s medical literature on NSAIDs concluded that such drugs are reasonable only for short-term use. But arthritis is a long-term affair. The only conclusion we can draw: Regular use of such drugs is inappropriate for a chronic condition like arthritis.
Even more alarming, some evidence suggests that these medications may actually be harmful to arthritic joints. Researchers in the Netherlands followed more than 1,600 patients for several years. Patients who had been taking the NSAID diclofenac (Arthrotec, Cataflam, Voltaren) experienced greater joint deterioration as determined by x-ray evidence. The authors concluded, “Our data suggest that diclofenac may not be harmless and may induce accelerated progression of hip and knee OA [osteoarthritis].
OTC Mistake?
When NSAIDs like ibuprofen (Advil, Cap-Profen, Excedrin 113, Genpril, Haltran, lbuprin, Ibuprohm, Ibu-Tab, Medipren, “OTC analgesics including NSAIDs are widely used, are frequently taken inappropriately and potentially dangerously, and users are generally unaware of the potential for adverse side effects.
Midol IB, Motrin IB, Nuprin, Pamprin IB, Profen, etc. and naproxen (Aleve) were approved for over-the-counter (OTC) sale, millions of people were delighted to have access to these powerful anti-inflammatory drugs. An Rx-to-OTC switch was a radical concept back in 1984. Even though the FDA assured consumers that such drugs were so safe that they did not require medical supervision, many physicians opposed the plan. They feared that side effects such as rash, fluid retention, high blood pressure, gastritis, and ulcers might make these drugs too dangerous for casual use. The FDA ignored the worriers.
Dear reader, we cannot tell you whether the decision to make NSAIDs available OTC was a blessing or a curse. The FDA has been incredibly inept at keeping track of adverse reactions to prescription medications. The agency’s track record on nonprescription pills is even worse. So, we really do not know how many ulcers, heart attacks, or other serious complications have occurred because of easy access to NSAIDs.
What we do know is that people are gobbling down these drugs almost like candy. Based on scientific surveys (Roper and the National Consumers League), it is estimated that 23 million Americans use a nonprescription NSAID (ibuprofen or naproxen) every day.” Only about one in five consumers bothers to read the directions on the label and fewer than one in three checks out dosing instructions. Perhaps that’s why one-fourth of them take more than the recommended dose. Scarier still, roughly half of the people surveyed were unaware of the potential for NSAID toxicity or just plain didn’t care.