Butenafine¿¡ ´ëÇÑ Mechanism_Of_Action Á¤º¸ Like allylamines, butenafine inhibits ergosterol biosynthesis by blocking squalene epoxidation. As ergosterol is an essential component of the fungal cell membrane, inhibition of its synthesis results in increased cellular permeability causing leakage of cellular contents.
Pharmacology
Butenafine¿¡ ´ëÇÑ Pharmacology Á¤º¸ Butenafine is an antifungal agent that acts by inhibiting squalene epoxidase, thus blocking the biosynthesis of ergosterol, an essential component of fungal cell membranes. It is mainly active against dermatophytes and has superior fungicidal activity against this group of fungi when compared to that of terbinafine, naftifine, tolnaftate, clotrimazole, and bifonazole. It is active also against Candida albicans and this activity is superior to that of terbinafine and naftifine. Butenafine also generates low MICs for Cryptococcus neoformans and Aspergillus spp. as well.
Half-life
Butenafine¿¡ ´ëÇÑ ¹Ý°¨±â Á¤º¸ Following topical application, a biphasic decline of plasma butenafine concentrations was observed with the half-lives estimated to be 35 hours initial and over 150 hours terminal.
Absorption
Butenafine¿¡ ´ëÇÑ Absorption Á¤º¸ The total amount absorbed through the skin into the systemic circulation has not been quantified.
Pharmacokinetics
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Biotransformation
Butenafine¿¡ ´ëÇÑ Biotransformation Á¤º¸ The primary metabolite in urine was formed through hydroxylation at the terminal t-butyl side-chain.
Toxicity
Butenafine¿¡ ´ëÇÑ Toxicity Á¤º¸ Not Available
Drug Interactions
Butenafine¿¡ ´ëÇÑ Drug_Interactions Á¤º¸ Not Available
Butenafine¿¡ ´ëÇÑ Description Á¤º¸ Butenafine hydrochloride is a synthetic benzylamine antifungal agent. Butenafine works by inhibiting the synthesis of ergosterol by inhibiting squalene epoxidase, an enzyme responsible for the creation of sterols needed in fungal cell membranes.