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 ...

One arrest was made. Promethazine is a prescription medication primarily used to treat allergy symptoms, nausea, and motion sickness. It belongs to a class of drugs known as antihistamines.

Promethazine HCl 25mg/mL ... rash, blood dyscrasias, nausea, dry mouth, paradoxical reactions; children: respiratory depression (may be fatal).

The pharmacokinetics of promethazine hydrochloride after administration of rectal suppositories at three dosage strengths and oral syrup were studied. The study had an open-label, randomized ...

After enrollment and completion of study period 1 (treatment D, 50 mg [10 mL] of promethazine oral syrup ... including somnolence, headache, nausea, dizziness, and asthenia; all events resolved.