About Weisen-U
Our History

Weisen-U, developed by Kin Fun Weisen-U Co. Ltd. in collaboration of Shigaken Pharmaceutical Industrial Co. Ltd., (“Shigaken”) has helped countless patients with gastrointestinal problems since its launch in 1960s.  According to a report published by a professor of Stanford University School of Medicine in 1955, Methylmethionine Sulfonium Chloride, the core ingredient of Weisen-U, can effectively suppress hyperacidity, maintain a healthy mucosa layer along the digestive tract, and protect the stomach wall against the gastric acid, relieving pain and curing the upset stomach. Its remarkable efficacy has been clinically proven by leading medical schools and institutions, including the Department of Medicine of Keio University School of Medicine, Department of Medicine of Kanazawa University School of Medicine, Atami Stomach and Duodenal Hospital, Department of Surgery of the University of Tokyo Hospital and the Third Department of Medicine of Kyoto Prefectural University of Medicine.


Acclaimed for its exceptional efficacy, stability and safety, Weisen-U has since been the trusted over-the-counter drug in Asia. As Weisen-U gained popularity in Hong Kong, Macau and Southeast Asia in the 1960s, it was brought to Europe and the Americas in the 1970s.  As one of the first imported gastrointestinal drugs in China, Weisen-U explored the Mainland market in the early 1980s. It became popular among the Chinese communities in Australia, Canada, U.S. and Europe due to high tide of immigration since 1990s. Over the decades, Weisen-U has become a household name and leading gastrointestinal drug in Hong Kong and overseas market.


As a gastrointestinal warrior for Hong Kong people in the past decades, Weisen-U gained massive popularity in Hong Kong, Macau and Southeast Asia. Trusted by the customers, Weisen-U is the No. 1 selling gastrointestinal drug* in Hong Kong and has received numerous awards in Hong Kong and Mainland China in recognition of its unrivalled quality. Kin Fung Weisen-U endeavours to deliver premium quality products produced under strict supervision and meets the highest quality control standards (PIC/S GMP).  In order to enhance the high quality standards and long-term stable supply of our product and cope with its long-term sustainable development, we decided to collaborate with a Hong Kong pharmaceutical manufacturer with PIC/S GMP production facility and utilizes the latest manufacturing technology which complies with the highest international standards of the pharmaceutical production starting from 2019.


Weisen-U, with its root in Hong Kong for years, is committed to deliver premium products of high efficacy and safe ingredients to our customers over the decades. The quality, composition, efficacy, production method, usage/dosage and packaging design of Weisen-U remain the same upon changing the manufacturer. We strive to safeguard the health of the public by the best gastrointestinal remedy.