Indications Calcium and Vitamin-D is used for the treatment of osteoporosis, osteomalacia, rickets, tetany, and parathyroid disease. Also used in raised calcium requirement for children and adolescents at times of rapid growth, inadequate intake of calcium in the diet due to malnutrition, prevention and treatment of osteoporosis, disorders of osteogenesis and tooth formation (in addition to specific treatment), latent tetany and during pregnancy and lactation. It is also used as routine supplement and phosphate binder in chronic renal failure.