Overview of Phaeanthus vietnamensis Ban: An Endemic Medicinal Plant Requiring Research, Conservation, and Development

Abstract

Objective: This narrative review summarizes and discusses scientific data on Phaeanthus vietnamensis Ban, encompassing its botanical characteristics, traditional medicine knowledge, phytochemistry, pharmacological activities, pharmaceutical formulation, and conservation strategies. Methods: Data were gathered, synthesized and analyzed from scientific publications, dissertations, and research reports published between 1991 and 2025 concerning this endangered endemic medicinal plant. Results: Phaeanthus vietnamensis is an endemic Vietnamese species with a relatively restricted natural distribution and conservation concern. Phytochemical investigations have identified several classes of constituents, particularly bisbenzylisoquinoline alkaloids, sesquiterpenes, and lignans, and a number of compounds have been newly reported from the species. Preliminary pharmacological studies have demonstrated antibacterial activity, inhibition of nitric oxide production, analgesic effects, attenuation of airway inflammation in experimental animals, gastroprotective effects, and cytotoxicity against selected cancer cell lines. Pilot-scale extraction, capsule formulation, and experimental cultivation have also been investigated, providing a basis for further studies on raw-material standardization and product development. Conclusion: Phaeanthus vietnamensis represents a high-value endemic medicinal resource, providing a solid scientific foundation for its future entry into the Vietnamese Pharmacopoeia and commercial development.