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ASTEMIZOLE (Hismanal®) was an antihistamine. Astemizole reduced allergy symptoms of hives (rash and itching), and hay fever (seasonal rhinitis).
NOTE: This drug is discontinued in the United States.
They need to know if you have any of these conditions:
high blood pressure or heart disease
other chronic illness
pregnant or trying to get pregnant
Take astemizole tablets by mouth. Follow the directions on the prescription label. Swallow the tablets with a drink of water. Take astemizole 1 to 2 hours before or at least 2 hours after eating; taking it with food can make it less effective. Take your doses at regular intervals. Do not take astemizole more often than directed. You may need to take it for several days as prescribed before your symptoms improve.
Contact your pediatrician or health care professional regarding the use of this medicine in children. Special care may be needed.
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
Serious heart problems can occur if you take astemizole with:
certain antibiotics (such as erythromycin, clarithromycin, and others)
certain medications used to treat HIV infection or AIDS
medicines for fungal infections (such as fluconazole, itraconazole, ketoconazole, voriconazole)
certain antidepressants (such as nefazodone, fluoxetine, paroxetine, and sertraline)
Tell your prescriber or health care professional about all other medicines you are taking, including non-prescription medicines, nutritional supplements, or herbal products. Also tell your prescriber or health care professional if you are a frequent user of drinks with caffeine or alcohol, if you smoke, or if you use illegal drugs. These may affect the way your medicine works. Check with your health care professional before stopping or starting any of your medicines.
Tell your prescriber or health care professional if your symptoms do not start to improve in 2 or 3 days.
Call your prescriber or health care professional if you faint or notice an uneven heart beat.
Astemizole causes less drowsiness than most other antihistamines. Until you know if it makes you drowsy or dizzy, do not drive, use machinery, or do anything that needs mental alertness.
Your mouth may get dry. Chewing sugarless gum or sucking hard candy, and drinking plenty of water will help.
Side effects that you should report to your prescriber or health care professional as soon as possible:
agitation, nervousness, excitability, not able to sleep (these are more likely in children)
irregular heartbeat, palpitations, or chest pain
Side effects that usually do not require medical attention (report to your prescriber or health care professional if they continue or are bothersome):
increased appetite or weight gain
Keep out of the reach of children in a container that small children cannot open.
Store at room temperature, between 15 and 30 degrees C (59 and 86 degrees F). Protect from moisture.
Throw away any unused medicine after the expiration date.
Bayhealth is Southern Delaware’s healthcare leader with hospitals in Dover and in Milford. Bayhealth provides a wide range of medical services, including cardiovascular, cancer, orthopaedics and rehabilitation, pediatrics, respiratory care, sleep care, surgical weight loss and women’s services.