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Promethazine DM Dosage

Generic name: DEXTROMETHORPHAN HYDROBROMIDE 15mg in 5mL, PROMETHAZINE HYDROCHLORIDE 6.25mg in 5mL
Dosage form: oral syrup

Medically reviewed by Drugs.com. Last updated on Sep 6, 2019.

Promethazine hydrochloride and dextromethorphan hydrobromide oral solution 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.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

More about Promethazine DM (dextromethorphan / promethazine)

Consumer resources

Other brands: Promethazine with DM, Promethazine with Dextromethorphan

Professional resources

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