dextromethorphan hydrobromide + pseudoephedrine hydrochloride + triprolidine hydrochloride · Medicine question

How does the dextromethorphan in Multi-Action ACTIFED Dry Coughs suppress coughing?

iatroX medicinesPublished 8 November 2026

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Dextromethorphan in Multi-Action ACTIFED Dry Coughs suppresses coughing by depressing the medullary cough centre; this describes the individual ingredient, as human pharmacodynamic information for the combination is unavailable.

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Multi-Action ACTIFED Dry CoughsMcNeil Products Ltd · emc · SmPC §5.1 Pharmacodynamic properties · Version 20Document updated 2 February 2026

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