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- Title
Effect of Penetration Enhancers on Toenail Delivery of Efinaconazole from Hydroalcoholic Preparations.
- Authors
Park, Jun Soo; Kim, Jeong Soo; Ho, Myoung Jin; Park, Dong Woo; Kim, Eun A.; Choi, Yong Seok; Jang, Sun Woo; Kang, Myung Joo; Agrofoglio, Luigi A.
- 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, 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.
- Subjects
TOENAILS; PROPYLENE glycols; TRIAZOLE derivatives; ONYCHOMYCOSIS; HOOFS; TREATMENT effectiveness
- Publication
Molecules, 2021, Vol 26, Issue 6, p1650
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules26061650