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Promethazine (also called Phenergan®) is used to treat nausea and vomiting. Promethazine is available in these forms:
Symptoms of an allergic reaction include: rash, hives, itching, chills, fever, headache, muscle ache, shortness of breath, coughing, tightness in the throat, swelling of the face or neck.
Not all patients who take promethazine will experience these side effects. Common side effects are bolded, but there may be others. Please report all suspected side effects to your doctor or pharmacist.
Find more information on side effects.
Be sure to discuss all questions and instructions with your doctor or pharmacist.
Stop taking promethazine if you have a severe side effect (listed above).
Your doctor will tell you how much promethazine to take and how often to take it.