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Medicines FexofenadineQuestion & answer

Fexofenadine · Medicine question

How does fexofenadine work as an antihistamine?

iatroX medicinesPublished 8 November 2026

The answer

Answer

Fexofenadine hydrochloride acts as a non-sedating H1 antihistamine and is a pharmacologically active metabolite of terfenadine.

Sources for this answer

Telfast 180mg film-coated tabletsOpella POM UK Limited · emc · SmPC §5.1 Pharmacodynamic properties · Version 13Document updated 3 October 2025

Sources checked 8 November 2026

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The full medicine guide

Fexofenadine

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