Calcium tablets are used as calcium supplements for pregnant and lactating women, menopausal women, the elderly, children, etc. For middle-aged and elderly people, it has the function of calcium supplementation and muscle bone density increase. Calcium tablets can prevent and treat diseases caused by calcium deficiency, such as bone fracture, osteoporosis, calcium deficiency in pregnant and lactating women, etc.; Calcium Erci is composed of calcium carbonate and vitamin D, which can be used for children, menopausal women and middle-aged and old people. If the human body is deficient in calcium, it will lead to lumbago and leg pain, bone and joint pain, growth retardation in children, cramps in hands and feet, etc. Moderate supplementation of calcium will significantly improve these symptoms; Calcium Elite Calcium Tablets are also helpful for osteoporosis in the elderly. Adverse reactions such as belching (hiccups), constipation, bloating, abdominal pain, diarrhea, flatulence, nausea and vomiting may occur when taking the drug, and hypercalcemia may occur with overdose. The drug is recommended to be taken under the medical advice of a doctor, not blindly self-medication, overdose will affect the patient’s health, there will be adverse reactions.