Calcium D3: Generically known as Calcium Carbonate D3 Tablets, its main effect is suitable for pregnant women, lactating women, menopausal women and the elderly and other people who need to take calcium supplements, which can prevent and control osteoporosis to a certain extent. Glucosamine is a chondroprotective agent, which has the effect of repairing cartilage and reducing joint pain. It is a natural amino monosaccharide, which can promote the synthesis of proteoglycans and hyaluronic acid, improve the metabolism of articular cartilage, enhance the repair ability of articular cartilage damage, and protect the damaged articular cartilage. It is mainly used for the prevention and treatment of osteoarthritis in all parts of the body, including: knee, hip, spine, shoulder, wrist and ankle joints.