Not only should you not use the same calcium tablets for a long period of time, but calcium tablets should not be used for a long period of time, and excessive calcium intake over a long period of time can lead to adverse reactions. Calcium tablets are used to treat osteoporosis or hypocalcemia and should be discontinued as soon as they are replenished to within the normal range. Long-term use of calcium tablets can lead to excessive levels of calcium ions in the blood, which can lead to a number of adverse effects, especially hypercalcemia. Hypercalcemia has adverse effects on many systems throughout the body, including the cardiovascular system and the urinary system, and can lead to many systemic lesions and can cause very obvious adverse symptoms. So not only should calcium tablets not be used for a long time with the same one, but they should not be used for a long time.