"Weixianyou" (formerly known as "Weixian -U") multivitamin U tablets originated in the 1960s. 1950, Hong Kong Jianfeng Weixian -U Co., Ltd. and Japan Shiga Pharmaceutical Co., Ltd. jointly developed and produced a new generation of stomach medicine "Weixian -U". Since its establishment, it has won the favor of patients with gastric diseases in Asia and around the world and treated countless patients with gastric diseases. At present, it has won the first place in the sales of stomach medicine in Hong Kong market for many years.

Since 2000, Weixianyou has changed its name to Weixianyou in Chinese mainland, and the Hong Kong name is still Weixianyou. Except for the different packaging names, Weixianyou and Weixianyou are identical in composition, efficacy and production technology. In 2020, Jianfeng Weixian -U Co., Ltd. moved the production bases of Weixian Oil and Weixian -U to Hongkong Mei Zheng Pharmaceutical Co., Ltd., and the curative effect and quality remained unchanged.