The ingredients of bear gall are very complex, and doctors of Chinese medicine believe that no one of its components can bring the intended effects. Furthermore, traditional Chinese medicine stresses natural, gradual solutions, and prescriptions are always combinations of ingredients. A single medicine like Urso cannot take the place of bear gall.
自然物的熊膽，成分複雜，發揮功能的也不只是單一成分，而且中醫治療觀念強調自然、緩和，開的藥劑都為復方，這種單一使用的合成藥，並未能取代中藥熊膽。