Calcium citrate is not suitable for patients with kidney stones, which may lead to further enlargement of kidney stones and is not conducive to recovery. Calcium citrate is mainly used for the prevention and treatment of calcium deficiency in clinical practice, such as osteogenesis imperfecta, tetany, rickets, osteoporosis, and calcium supplementation for children, pregnant women, lactating women, menopausal women, and the elderly. The adverse reactions of calcium citrate are mainly constipation; contraindications include hypercalciuria, hypercalcemia, calcium-containing kidney stones or people with a history of kidney stones are prohibited; it can be seen that patients with kidney stones should not apply this drug. Precautions for Calcium Citrate include contraindication for those who are allergic to this product, caution for those with allergies; caution for patients with cardiac and renal insufficiency; children applying this drug must be under adult supervision. Patients with kidney stones should seek medical attention in time, and during the treatment period, no matter which type of drugs are applied, they should follow the doctor’s instructions, and should not be applied arbitrarily.