Guhan Pharmaceutical Group Co., Ltd. manufactures and sells traditional Chinese medicines, chemical drugs, and health food under the Guhan brand in China. It operates through Pharmaceutical and Health Product Manufacturing and Sales, Active Pharmaceutical Ingredient (API) Manufacturing and Sales, and Other segments. The company offers prescription and over-the-counter drugs, including tonics, cardiovascular drugs, children's nutritional supplements, cold and flu remedies, and heat-clearing and detoxifying drugs. It also engages in nutrition and health consulting, Chinese herbal medicine cultivation, medical research and experimental development, medical consultation, internet sales, technology promotion and consulting, outpatient services, and pharmaceutical wholesale and retail. Formerly known as Tus-Pharmaceutical Group Co., Ltd., it changed its name to Guhan Pharmaceutical Group Co., Ltd. in November 2025. Founded in 1956, it is headquartered in Hengyang, China.