has role is deprotonated form of naphthalenes tertiary amine P450 inhibitor EC 1.14.13.132 (squalene monooxygenase) inhibitor enyne terbinafine(1+) sterol biosynthesis inhibitor allylamine antifungal drug terbinafine A tertiary amine that is <em>N</em>-methyl-1-naphthalenemethylamine in which the amino hydrogen is replaced by a 3-(<em>tert</em>butylethynyl)allyl group. An antifungal agent administered orally (generally as the hydrochloride salt) for the treatment of skin and nail infections.