Promethazine is a medicine for the prevention and treatment of vomiting and nausea related to certain conditions such as motion sickness, or before and after surgery. This medicine is also used to treat the symptoms of an allergic reaction such as itching, rash, and runny nose.
Promethazine may be used to help you feel relaxed or sleepy before or after surgery or to help some narcotic pain relievers such as meperidine work better.
There is a suppository form of this medication when the regular tablet cannot be taken by mouth.
Promethazine is an antihistaminic available under the brand names Phenadoz and Phenergan.
Promethazine is an antihistaminic. It works by blocking histamine that your body produces during an allergic reaction. Its other effects - anti-nausea, pain relief, or calming - may affect some natural substances such as acetylcholine and by acting directly on certain parts of the brain.
The main benefit of using Promethazine is the prevention and relief that it provides to vomiting and nausea related to motion sickness, or before and after surgery. This medicine is also an effective treatment for the symptoms of an allergic reaction.
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