Whether or not calcium shots are good depends on whether or not the body is deficient in calcium, but also whether or not it suffers from arrhythmia, coronary heart disease and other heart diseases. Calcium injection can be used for the treatment of calcium deficiency, acute hypocalcemia, alkalosis and hypoparathyroidism caused by tetany, allergic diseases, magnesium poisoning, fluoride poisoning, cardiac resuscitation applications. Its main adverse reactions are cardiac arrhythmia, even cardiac arrest, vomiting and nausea, also known as hypercalcemia with constipation, lethargy, persistent headache, loss of appetite, metallic taste in the mouth, abnormal dry mouth, etc. If injected for a long period of time, the later stage manifests itself as confusion, hypertension, sensitivity of the eyes and skin to light, nausea and vomiting. It is forbidden for those who are allergic to any components in this product, during the application of cardiac glycosides, and patients with hypercalcemia. Before taking calcium supplement injections, you must know your own situation, perfect the examination in the hospital, and standardize the use under the guidance of the doctor.