Calgel Capsule is a combination of Calcitriol, Calcium carbonate and Zinc. Benefits of Key ingredients:Calcium plays a very important role in the body. It is necessary for normal functioning of nerves, cells, muscle, and bone. If there is not enough calcium in the blood, then the body will take calcium from bones, thereby weakening bones. Thus intake of Calcium is necessary to keep the bones strong. Calcitriol (Vitamin D) helps the body absorb calcium and phosphorus. Calcitriol is used to treat low level of calcium in the blood of patients whose kidney or parathyroid glands are not working properly.Zinc is an essential trace element required for bone formation. Calgel Capsule is beneficial in increasing muscle mass, preventing loss of bones & in prevention and treatment of decreased calcium deposits in body. Use under medical supervision.