Chewable Calcium Hydrogen Phosphate Tablets contain calcium, which is used for the treatment and prevention of diseases caused by calcium deficiency, such as osteoporosis, rickets, osteogenesis imperfecta, hand and foot convulsions, etc.; it can also be used to supplement calcium for special groups, such as children, the elderly, menopausal, gestational and breastfeeding patients. This product is a chewable tablet and should be chewed in the mouth and then swallowed. This product can lead to the occurrence of constipation, and blood calcium concentration should be tested during the use of the drug. This product should be contraindicated if the patient has high levels of calcium in the blood or urine, has kidney stone disease or has a previous history of this disease. Patients with cardiac and renal insufficiency should use it with caution. In daily life, attention should be paid to reduce the intake of alcohol, coffee and other beverages, otherwise it will inhibit the absorption of calcium. Patients should use the drug under the guidance of a professional physician and strictly follow the doctor’s instructions.