Cacit D3 Effervescent Granules Used in situations such as poor dietary intake, when the body requires higher than normal levels or to correct deficiencies in the elderly. It is also used in managing certain conditions such as osteoporosis. Cacit D3 Effervescent Granules help correct calcium & vitamin D deficiencies & vitamin D also helps the intestine absorb both calcium & phosphorus which are needed for bone growth. Dissolve in water before taking. You should drink the prepared solution immediately after the granules have completely dissolved.