Osteotriol is 1,25-dihydroxyvitamin D3, an active vitamin D3 that promotes the absorption of calcium and also promotes the conversion of calcium contained in the skin. It is mainly used in patients with calcium deficiency, or immunosuppressants, especially glucocorticoids, which tend to cause osteoporosis, or certain patients who cannot absorb calcium malabsorption and apply osteopontin, to promote calcium absorption in the intestinal tract straight. If you take too much osteopontin, or if you take it in the wrong way, or if you take it at the wrong time, it will easily cause the aggregation of calcium in the blood and cause hypercalcemia. The harm of hypercalcemia is mainly cardiovascular harm, if cardiovascular harm has been ruled out, then hypercalcemia needs to be discharged from the urine, and stones are easily formed in the kidneys, so there are good points and bad points of osteotriol, and it is necessary to balance these two aspects according to the actual situation.