Clotrimazole is a broad-spectrum antifungal agent that is used for the treatment of dermal infections caused by various species of pathogenic dermatophytes, yeasts, moulds and bacteroids. Clotrimazole is also active against certain gram-positive bacteria especially Staphylococci and Tricomonas. Like other imidazoles, Clotrimazole alters the permeability of fungal cell walls by interfering with cell wall lipids. At fungi static levels the main effect is inhibition of ergosterol synthesis but at higher concentrations there is an additional mechanism of membrane damage unrelated to sterol synthesis.