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Keywords = propylene glycol dicaprylocaprate

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12 pages, 4079 KiB  
Article
Effect of Penetration Enhancers on Toenail Delivery of Efinaconazole from Hydroalcoholic Preparations
by Jun Soo Park, Jeong Soo Kim, Myoung Jin Ho, Dong Woo Park, Eun A. Kim, Yong Seok Choi, Sun Woo Jang and Myung Joo Kang
Molecules 2021, 26(6), 1650; https://doi.org/10.3390/molecules26061650 - 16 Mar 2021
Cited by 7 | Viewed by 3360
Abstract
The incorporation of permeation enhancers in topical preparations has been recognized as a simple and valuable approach to improve the penetration of antifungal agents into toenails. In this study, to improve the toenail delivery of efinaconazole (EFN), a triazole derivative for onychomycosis treatment, [...] Read more.
The incorporation of permeation enhancers in topical preparations has been recognized as a simple and valuable approach to improve the penetration of antifungal agents into toenails. In this study, to improve the toenail delivery of efinaconazole (EFN), a triazole derivative for onychomycosis treatment, topical solutions containing different penetration enhancers were designed, and the permeation profiles were evaluated using bovine hoof models. In an in vitro permeation study in a Franz diffusion cell, hydroalcoholic solutions (HSs) containing lipophilic enhancers, particularly prepared with propylene glycol dicaprylocaprate (Labrafac PG), had 41% higher penetration than the HS base. Moreover, the combination of hydroxypropyl-β-cyclodextrin with Labrafac PG further facilitated the penetration of EFN across the hoof membrane. In addition, this novel topical solution prepared with both lipophilic and hydrophilic enhancers was physicochemically stable, with no drug degradation under ambient conditions (25 °C, for 10 months). Therefore, this HS system can be a promising tool for enhancing the toenail permeability and therapeutic efficacy of EFN. Full article
(This article belongs to the Section Medicinal Chemistry)
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