A Systematic Review on Pharmacological Evaluation of Costus Igneus

Costus igneus, commonly known as the insulin plant, is a medicinal and ornamental plant belonging to the family Costaceae. It is widely cultivated in India for its attractive spiral arrangement of leaves and has gained considerable attention in traditional medicine due to its potential antidiabetic properties. Traditionally, the leaves of this plant have been used as a complementary herbal remedy to support blood glucose management. The growing interest in plant-based medicines has encouraged scientific investigations into its phytochemical composition, pharmacological activities, and possible therapeutic applications. Phytochemical studies suggest that Costus igneus contains various bioactive constituents, including flavonoids, phenolic compounds, alkaloids, terpenoids, and other phytochemicals that may contribute to its biological activities. Experimental studies have explored its potential antioxidant, antidiabetic, and other pharmacological effects, particularly its possible influence on glucose metabolism and oxidative stress. However, the available evidence varies in quality, and findings from laboratory and animal studies cannot be directly interpreted as proof of clinical effectiveness in humans. This review aims to provide an overview of the botanical characteristics, geographical distribution, traditional uses, phytochemical constituents, and reported pharmacological activities of Costus igneus, with particular emphasis on its potential role in diabetes management. It also highlights the importance of evaluating its safety, effective dosage, possible interactions with conventional antidiabetic medicines, and long-term effects through well-designed scientific studies. A critical assessment of the existing literature may help identify research gaps and guide future investigations into the therapeutic potential of this plant. Overall, Costus igneus represents a promising subject for further pharmacological and clinical research, although its use should not replace prescribed diabetes treatment without appropriate medical guidance.