Calcium D3 tablets are taken orally, 1 tablet at a time, 1~2 times a day. The best time to take Calcium D3 tablets is at night because there is less food in the stomach at night when you sleep, so calcium can be absorbed quickly when you take it before you go to bed.

Taking need to pay attention to: 1. should not be combined with digitalis drugs. 2. and thiazide diuretics, due to increase the renal tubular reabsorption of calcium and easy to occur hypercalcemia. 3. large amounts of food rich in fiber to inhibit the absorption of calcium, due to the combination of calcium and cellulose and not easily absorbed compounds. 4. and phenytoin sodium and tetracycline, the two are absorbed to reduce the absorption of the. 5. vitamin D, contraceptives, estrogen, and so on. 6. D, birth control pills, estrogen can increase calcium absorption.