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Medicines chlorphenamine maleateQuestion & answer

chlorphenamine maleate · Medicine question

How does chlorphenamine interact with phenytoin?

iatroX medicinesPublished 8 November 2026

The answer

Answer

Chlorphenamine inhibits phenytoin metabolism and can lead to phenytoin toxicity.

Sources for this answer

Chlorphenamine injectionKyowa Kirin Ltd · emc · SmPC §4.5 Interaction with other medicinal products · Version 7Document updated 8 February 2018

Sources checked 8 November 2026

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chlorphenamine maleate

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