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Phenergan
  • Treatments
  • Allergic Reactions

Phenergan

Generic name:promethazine (oral) [ pro-METH-a-zeen ]
Brand names: Phenergan, Phenadoz, Promethegan
Drug classes:Antihistamines, Phenothiazine antiemetics

Medically reviewed by Kaci Durbin, MD. Last updated on Feb 7, 2022.

Phenergan is also found in combination with other medications such as phenylephrine (Prometh Hydrochloride), codeine (Prometh VC), or dextromethorphan (Promethazine DM)

What is Phenergan?

Phenergan belongs to a group of drugs called phenothiazines. It works by changing the actions of chemicals in your brain. Promethazine also acts as an antihistamine. It blocks the effects of the naturally occurring chemical histamine in your body.

Phenergan is used to treat allergy symptoms such as itching, runny nose, sneezing, itchy or watery eyes, hives, and itchy skin rashes.

Phenergan also prevents motion sickness, and treats nausea and vomiting or pain after surgery. It is also used as a sedative or sleep aid.

Phenergan is not for use in treating symptoms of asthma, pneumonia, or other lower respiratory tract infections.

Warnings

Stop using Phenergan and call your doctor at once if you have twitching or uncontrollable movements of your eyes, lips, tongue, face, arms, or legs. These could be early signs of dangerous side effects. Phenergan should not be given to a child younger than 2 years old. Phenergan can cause severe breathing problems or death in very young children. Carefully follow your doctor's instructions when giving this medicine to a child of any age.

Phenergan can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert. Avoid drinking alcohol, which can increase some of the side effects of Phenergan. There are many other medicines that can interact with promethazine. Tell your doctor about all the prescription and over-the-counter medications you use. This...