Butenafine

6.6

6.6

Slightly soluble (HCl salt)

7.56e-05 g/L

◉ Summary of Use during Lactation；Topical butenafine has not been studied during breastfeeding. Because it is poorly absorbed after topical application, it is not likely to reach the bloodstream of the infant or cause any adverse effects in breastfed infants. Ensure that the infant's skin does not come into direct contact with the areas of skin that have been treated. Only water-miscible cream or gel products should be applied to the breast because ointments may expose the infant to high levels of mineral paraffins via licking.；◉ Effects in Breastfed Infants；Relevant published information was not found as of the revision date.；◉ Effects on Lactation and Breastmilk；Relevant published information was not found as of the revision date.

D - Dermatologicals；D01 - Antifungals for dermatological use；D01A - Antifungals for topical use；D01AE - Other antifungals for topical use；D01AE23 - Butenafine

QD - Dermatologicals；QD01 - Antifungals for dermatological use；QD01A - Antifungals for topical use；QD01AE - Other antifungals for topical use；QD01AE23 - Butenafine

Butenafine is a synthetic antifungal agent that is structurally and pharmacologically related to allylamine antifungals. The exact mechanism of action has not been established, but it is suggested that butenafine's antifungal activity is exerted through the alteration of cellular membranes, which results in increased membrane permeability, and growth inhibition. Butenafine 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 also active against <i>Candida albicans</i> and this activity is superior to that of terbinafine and naftifine. Butenafine also generates low MICs for <i>Cryptococcus neoformans</i> and <i>Aspergillus spp.</i> as well.

Although the mechanism of action has not been fully established, it has been suggested that butenafine, like allylamines, interferes with sterol biosynthesis (especially ergosterol) by inhibiting squalene monooxygenase, an enzyme responsible for converting squalene to 2,3-oxydo squalene. 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. Blockage of squalene monooxygenase also leads to a subsequent accumulation of squalene. When a high concentration of squalene is reached, it is thought to have an effect of directly kill fungal cells.

91Y494NL0X

BUTENAFINE

Established Pharmacologic Class [EPC] - Benzylamine Antifungal

Chemical Structure [CS] - Benzylamines

Butenafine is a Benzylamine Antifungal.