Promethazine

Available now: PROMETHAZINE. See our allergy selection for related options. Promethazine is a medicine used to manage and treat allergic conditions, nausea and vomiting, motion sickness, and sedation. It also has off label uses for nausea and vomiting in pregnancy. Promethazine is a phenothiazine derivative with antidopaminergic, antihistamine, and anticholinergic properties