Cholecalciferol is used to treat low blood calcium levels. It effectively treats various conditions in the body like Vitamin D deficiency, osteoporosis, hypoparathyroidism, latent tetany and rickets or osteomalacia. Cholecalciferol contains cholecalciferol (vitamin D3). Learn more about VITAMIN D uses, effectiveness, possible side effects, interactions, dosage, user ratings and products that contain VITAMIN D. Cholecalciferol is a dietary supplement indicated for patients with vitamin D insufficiency or deficiency, and it also demonstrates various off-label uses. Vitamin D analogs are used to prevent or treat rickets or osteomalacia and to manage hypocalcemia associated with hypoparathyroidism or pseudohypoparathyroidism. Since calcitriol is more expensive than ergocalciferol, use of the former drug is generally reserved for patients with inadequate metabolism of ergocalciferol. The initial treatment of severe hypocalcemia is immediate IV ...