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.