
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

USES: Promethazine is used to prevent nausea and vomiting. It is also used for sedation, allergy symptoms (runny nose, itchy eyes) and motion sickness (prevention and treatment). Use is not recommended in children less than 2 years old.

Promethazine should not be used with propylthiouracil (PTU) due to the increased risk of low white blood cell counts and increased risk of infections. The reason for this interaction is not known.

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