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Medicines PromethazineQuestion & answer

Promethazine · Medicine question

What pharmacological properties does promethazine have?

iatroX medicinesPublished 8 November 2026

The answer

Answer

Promethazine is a potent, long-acting antihistamine with additional anti-emetic, central sedative and anticholinergic properties.

Sources for this answer

Phenergan 25 mg/ml Solution for InjectionOpella POM UK Limited · emc · SmPC §5.1 Pharmacodynamic properties · Version 26Document updated 3 October 2025

Sources checked 8 November 2026

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Promethazine

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