Healthcare providers often prescribe promethazine hydrochloride (
Phenergan®) for the treatment and/or prevention of nausea and vomiting associated with surgery and certain types of anesthesia. The medicine is also approved to treat motion sickness and
allergies, and can be used as a sedative.
It comes in several forms, including tablets, syrup, rectal suppositories, and an injection. The drug is taken one to three times a day, depending on the condition being treated. Promethazine pills are available in three different strengths, including:
Brand-name promethazine tablets, syrup, and suppositories were once made by Wyeth Pharmaceuticals, Inc. but are no longer available. Generic versions of this medicine are made by several manufacturers.
(Click Promethazine for suggestions on when and how to take the pill form of promethazine, to find out how the drug works, and for information on possible side effects.)