Calcium is a registered trademark brand of Hangzhou Sanofi Minsheng Health Pharmaceutical Co., Ltd. Its products cover calcium carbonate D3 tablets, calcium magnesium zinc copper vitamin D tablets, calcium plus calcium tablets and so on. To meet the nutritional and health needs of consumers at different stages. Calcium is a common calcium agent. Normal use will not cause hypercalcemia, and the human body has a normal regulation mechanism. If calcium is used preventively, it can be used every other day.