Promethazine DM Dosage
Generic name: tromethorphan hydrobromide and promethazine hydrochloride
Dosage form: oral syrup
The information at Drugs.com is not a substitute for medical advice. ALWAYS consult your doctor or pharmacist.
Promethazine hydrochloride and dextromethorphan hydrobromide syrup is contraindicated for children under 2 years of age (see WARNINGS –Black Box Warning and Use In Pediatric Patients).
The average effective dose is given in the following table:
| Adults |
1 teaspoonful (5 mL) every 4 to 6 hours, not to exceed 30 mL in 24 hours. |
| Children 6 Years To Under 12 Years |
½ to 1 teaspoonful (2.5 to 5 mL) every 4 to 6 hours, not to exceed 20 mL in 24 hours. |
| Children 2 Years To Under 6 Years |
¼ to ½ teaspoonful (1.25 to 2.5 mL) every 4 to 6 hours, not to exceed 10 mL in 24 hours. |
More about Promethazine DM (dextromethorphan / promethazine)
Consumer resources
- Other brands: Promethazine with DM, Promethazine with Dextromethorphan
