Overview: Promethazine is a medicine used to help with allergy symptoms, reduce or prevent nausea and vomiting in certain situations, or provide sedative or pain-relieving effects after surgery.

At intervals of five to nine days, healthy volunteers were given two 12.5-mg promethazine rectal suppositories, one 25-mg suppository, one 50-mg suppository, or 50 mg (10 mL) of promethazine oral ...

Nine of these 22 patients received 1 mg or less of promethazine per kilogram of body weight, plus another drug with respiratory depressant effects. A wide range of weight-based doses (0.45 to 6.4 ...

Promethazine (Phenergan ) is an antihistamine and antiemetic, prescribed for allergic conditions, prevention of motion sickness, and to control nausea and vomiting during and after surgery.It ...

After enrollment and completion of study period 1 (treatment D, 50 mg [10 mL] of promethazine oral syrup), one subject was withdrawn from the study because of violation of study protocol.