Wei Cizang, Wei Shanjun, Wei Gudao and others in the Tang Dynasty were honored as drug kings, respected by Taoism and spread among the people. Wei Cizang was a famous doctor in Tang Dynasty. The old Tang book was called Jingzhao (now Xi 'an, Shaanxi), and later called Wei Zhenren. "Month is generalized? According to the May Order, May 15 is the birthday of the drug king Wei Zhenren. Wei Shanjun was a member of Wu Zetian in Tang Dynasty. The fifth volume of "Fairy Biography" is thirteen years old and served in Changzhai. Later, a local teacher told him the secret. Always carrying a black dog, called Oolong. One day, the black dog became an oolong and Wei Shanjun took him away. Wei Gudao, also known as Teacher Wei, is a Tianzhu person in the Western Regions. Kaiyuan (7 13-743) entered Beijing with dozens of gourds tied around his waist. When bait is widely used, miraculous effects can be seen in the treatment of diseases. Emperor Xuanzong of the Tang Dynasty was called into the palace and given the title of King of Medicine, which was called the King of Medicine Bodhisattva by the ruling and opposition parties.