Phenergan is used for relieving allergy symptoms, including hives or runny nose. It is used to prevent and control nausea and vomiting during and after surgery. It is also used to help produce light sleep; prevent and treat motion sickness; or treat pain after surgery, in combination with other medicines. Phenergan is a phenothiazine antihistamine. It works by blocking the sites where histamine acts.
Use Phenergan as directed by your doctor.
- Take Phenergan by mouth with or without food. If stomach upset occurs, take with food to reduce stomach irritation.
- If you are using Phenergan for motion sickness, take a dose at least 30 to 60 minutes before you begin traveling.
- If you miss a dose of Phenergan and you are using it regularly, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.
- Overdose symptoms may include severe drowsiness, dizziness, dry mouth, large pupils, flushing, nausea, vomiting, shallow breathing, and fainting.
Ask your health care provider any questions you may have about how to use Phenergan.
Store Phenergan at room temperature, between 68 to 77 degrees F (20 to 25 degrees C). Store away from heat, moisture, and light. Do not store in the bathroom. Keep tightly closed. Keep Phenergan out of the reach of children and away from pets.
Active Ingredient: Promethazine HCI.