Calcimax can be used as a dietary supplement that provides extra calcium to the body. It may also be used by certain patients to make sure they are getting enough calcium. Calcium plays an essential role in the body. It is necessary for the normal functioning of nerves, cells, muscles, and bones. If there is not enough calcium in the blood, then the body will take calcium from bones, thereby weakening the bones. Calcimax is used to treat low calcium levels and high phosphate levels. It helps the body to absorb more calcium from food and other dietary supplements.