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Promethazine is in a group of drugs called phenothiazines (FEEN-oh-THYE-a-zeens). 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.
For qualified customers only. Some exclusions apply.
H Hazardous item. This item may subject your order to additional shipping charges.
D Device Product can only be purchased by a licensed professional.
Rx Prescription Drug. Not Returnable.