Promethazine HCl 12.5mg+, 25mg+, 50mg; tabs; +scored. Motion sickness: 25mg 30–60mins before travel; may repeat in 8–12hrs; maintenance 25mg twice daily. Perioperative nausea & vomiting: 25mg ...

Codeine phosphate 10mg, promethazine HCl 6.25mg ... neuromuscular disease, concomitant drugs that cause respiratory depression). Head injury, intracranial lesions or pre-existing increase in ...

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enrollment and completion of study period 1 (treatment D, 50 mg [10 mL] of promethazine oral syrup), one subject was withdrawn from the study because of violation of study protocol.

Promethazine concentration was determined by high-performance liquid chromatography ... comply with a regulatory request from the Food and Drug Administration. The specific purpose was to examine ...