Kun Xian capsule is a kind of Chinese patent medicine, the efficacy of Kun Xian capsule is to tonify the kidneys and promote the circulation, dispel wind and remove dampness, mainly for the treatment of rheumatoid arthritis caused by joint swelling and pain, flexion and extension, morning stiffness, joint warmth and cold, lumbar and knee soreness and so on. Kunxian capsule is more clinically used. Clinically, it is shown that in terms of cytokine antagonism, Kunxian capsule has a significant inhibitory effect on tumor necrosis factor and interleukin in mice, indicating that Kunxian capsule can inhibit inflammatory cytokines and has anti-inflammatory and analgesic effects. At the same time, Kunxian capsule also shows hormone-like effects, but without the side effects of hormone-like drugs. In addition to treating rheumatoid arthritis, Kun Xian capsule also has therapeutic effects on systemic lupus erythematosus, chronic nephritis and ankylosing spondylitis at the same time.