Aminosugar is mainly used for the treatment of osteoarthritis of knee joint in clinic, which can repair the regeneration of articular cartilage and promote the production of synovial fluid, which can gradually reduce the hard abrasion of articular surfaces, and thus reduce the symptoms of pain, swelling as well as bone friction sound, and it can restore the joint space to near normal by repairing the articular cartilage, so as to satisfactorily restore the function of joints. In addition, it also has a good inhibitory effect on the abnormal osteophytes of the knee joint, which can make the content of ammonia sugar in the joint return to a balanced state, stimulate the cartilage cells to synthesize proteoglycans and collagen fibers, and generate cartilage matrix, so as to improve the self-repairing ability of the articular cartilage. Therefore, by repairing articular cartilage and generating synovial fluid, ammonia can play an important therapeutic role in osteogenic arthritis. Aminosugar can also treat meniscus injury, chondromalacia patella and many types of cervical spondylosis, neck, shoulder and lumbar pain and other diseases with different effects.