Calcium carbonate tablets have the potential to cause stones. Calcium carbonate tablets contain 0.5 grams of calcium carbonate equivalent to 0.2 grams of calcium in the drug composition, and kidney stones are formed in the kidneys due to the formation of stones in the kidneys of some components in the urine of patients, and these components in the urine include calcium. Therefore, when patients take calcium carbonate tablets for a long time or have metabolic abnormalities, calcium carbonate tablets may cause patients to develop kidney stones. Meanwhile, it is also mentioned in the contraindicated groups of calcium carbonate tablets that it is forbidden for patients with hypercalcemia, hypercalciuria, calcium-containing kidney stones or a history of kidney stones. Thus, calcium carbonate tablets are likely to cause stones. If kidney stone patients have calcium supplement needs, it is recommended to take calcium supplements under the guidance of a doctor.