Dr. Morepen Gemnova Cal consists of three medicines, namely: Calcium carbonate (mineral), Calcitriol (Vitamin D3), and Zinc (mineral). Calcium is a mineral that is used to prevent or treat a calcium deficiency. It provides essential nutrients to maintain bone formation and maintenance. Calcitriol is a synthetic version of Vitamin D3 and treats calcium deficiency with hypoparathyroidism (the parathyroid glands' decreased activity) and metabolic bone diseases in people with chronic kidney failure. It raises Vitamin D levels and thereby increases calcium levels in the blood. This helps in improving the absorption rate of calcium from the intestine. Zinc is a mineral that has an essential role in bone health. Zinc helps to stimulate osteoblastic bone formation and mineralization.Indications:OsteoporosisPostmenopausal osteoporosis OsteomalaciaRicketsCalcium deficiencyTetany Common side effects:HeadacheMusculoskeletal (bone, muscle, or joint) painBack painIndigestionHeartburnDiarrhea