Doses for children is half of those for adults. For the prevention of osteoporosis, 1-3 Calcium Carbonate 500 tablet is recommended generally as a dietary supplement. Dihydrotachysterol also increases renal phosphate excretion.Īdult: One Calcium Carbonate 500 tablet or as directed by the physician. Dihydrotachysterol is effective in the elevation of serum calcium by stimulating intestinal calcium absorption and mobilizing bone calcium in the absence of parathyroid hormone and of functioning renal tissue. It does not undergo further hydroxylation by the kidney and therefore is the analogue of 1, 25-dihydroxyvitamin D. The acid-neutralizing capacity of calcium carbonate is 58 mEq/15 ml.When used as a nutritional supplement, calcium carbonate acts by directly increasing calcium stores within the body.Ī vitamin D that can be regarded as a reduction product of vitamin D2.ĭihydrotachysterol is hydroxylated in the liver to 25-hydroxydihydrotachysterol, which is the major circulating active form of the drug. Antacids work by restoring acid-base balance, attenuating the pepsin activity and increasing bicarbonate and prostaglandin secretion. Gastric-peptic disease occurs as a result of an imbalance between protective factors, such as mucus, bicarbonate, and prostaglandin secretion, and aggressive factors, such as hydrochloric acid, pepsin, and Helicobacter pylori (H. during pregnancy and lactation, and in children and adolescents at time of rapid growth, inadequate intake of calcium in the diet due to malnutrition, prevention and treatment of osteoporosis, disorders of osteogenesis and tooth formation, latent tetany. Indicated in raised calcium requirement e.g.
For calcium carbonate the postulated chemical reaction is:
Calcium carbonate reacts with gastric acid to produce a salt and water.
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