Terbinafine is an allylamine which has a broad spectrum of antifungal activity (it kills fungi). At low concentrations Terbinafine is fungicidal against dermatophytes and filamentary fungi. The activity on yeasts is fungicidal or fungistatic (it prevents the growth of fungi), depending on the species.

Terbinafine is used to treat fungal infections of the skin (commonly known as tinea) caused by a type of fungus called dermatophytes such as Trichophyton (e.g.: T. rubrum. T. mentagrophytes, T. verrucosum, T. violaceum), Microsporum conis and Epidermophyton floccosum.

It Is Indicated for: Treatment of fungal infections of the skin; skin infections due to yeasts; and Pityarisis (tinea) versicalor.