Topical Azole Formulation Development Trends and Therapeutic Uses: Emerging Strategies in Antifungal Drug Delivery Systems

Abstract

Superficial fungal infections represent one of the most common dermatological conditions worldwide and significantly affect patient quality of life. Topical antifungal therapy is considered the first-line treatment for localized fungal infections due to its targeted action and reduced systemic toxicity. Among available antifungal classes, azole derivatives remain the most widely prescribed because of their broad-spectrum antifungal activity and favorable safety profile. However, conventional topical formulations such as creams, lotions, and ointments are associated with limitations including poor skin penetration, inadequate retention at the infection site, low bioavailability, instability, and poor patient compliance.
Recent advancements in pharmaceutical sciences and nanotechnology have transformed topical antifungal therapy through the development of advanced drug delivery systems such as liposomes, niosomes, nanoemulsions, solid lipid nanoparticles, nanostructured lipid carriers, nanogels, microsponges, transferosomes, ethosomes, and microneedle-assisted systems. These novel carriers improve drug solubility, skin permeation, controlled release, and therapeutic efficacy while reducing adverse effects and dosing frequency.
This review comprehensively discusses azole antifungal drugs, their mechanism of action, formulation development trends, therapeutic applications, advantages of novel delivery systems, challenges associated with topical therapy, and future perspectives in antifungal formulation research.