Itrazal T is a combination antifungal medication containing Terbinafine and Itraconazole. Terbinafi... Itrazal T is a combination antifungal medication containing Terbinafine and Itraconazole. Terbinafine is an allylamine antifungal that inhibits squalene epoxidase, disrupting fungal cell membrane synthesis. Itraconazole is a triazole antifungal that inhibits ergosterol synthesis.See more