Fexofenadine hydrochloride, often sold under brand names like Allevia and Treathay, used to be available only on prescription. But now, high strength tablets can be bought from high street ...

Fexofenadine hydrochloride, often sold under brand names like Allevia and Treathay, used to be prescription-only. Now, high-strength tablets can be purchased from high street chemists and supermarkets ...