Review evaluates cannabidiol's benefits for mucosal diseases and explores optimized delivery methods, suggesting future directions.
Cannabidiol (CBD), a major non-psychoactive phytocannabinoid, has attracted considerable attention owing to its broad therapeutic potential. Its anti-inflammatory, antimicrobial, and antitumor properties make it a promising candidate for the treatment of mucosa-associated diseases. However, the clinical translation of CBD is significantly hindered by its unfavorable physicochemical properties, particularly high lipophilicity and poor aqueous solubility, which result in low bioavailability. To overcome these limitations, the rational selection of administration routes in combination with advanced drug delivery systems tailored to disease pathophysiology is essential. Such strategies are critical for improving the stability of CBD, enhancing mucosal permeation, and enabling controlled and targeted release at diseased sites. Nevertheless, a systematic review focusing on these aspects is still lacking. This review first summarizes the relationship between CBD and the mucosal endocannabinoid system, together with its pharmacological effects. It then discusses the therapeutic potential of CBD in mucosal disorders of the digestive and respiratory systems. In addition, current administration routes and advanced delivery systems for CBD are reviewed to provide insights for future research and clinical translation. Finally, the remaining challenges associated with the clinical application of CBD and future development directions are discussed.
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Han et al. (2026) studied this question.
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