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Promazine Dosage

Applies to the following strengths: 50 mg; 25 mg; 50 mg/mL; 25 mg/mL

Usual Adult Dose for:

Usual Pediatric Dose for:

Additional dosage information:

Usual Adult Dose for Agitated State

IM: 50-150 mg, depending on the degree of severity.
May give additional doses in 30 minutes up to a total of 300 mg. Once control is obtained, administer orally.
Oral or IM: 10-200 mg every 4-6 hours.

Usual Pediatric Dose for Psychosis

Child > 12 years: Oral or IM: 10-25 mg every 4-6 hours.

Dose Adjustments

In less severe disturbances, adjust dose downward.


Promazine is not dialyzable.

Other Comments

The total daily dose should not exceed 1000 mg.

Further information

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