Calcium Carbonate D3 Granules, for children, are usually taken 0.5-1 sachet at a time, 1-2 times a day. However, the instructions do not clearly show how to take it for infants. Infants should follow the doctor’s instructions if they need to use the medicine. Calcium Carbonate D3 Granules is a commonly used calcium supplement. Infants generally do not need to preventive application of calcium supplements, but if infants have symptoms of calcium deficiency or detected calcium deficiency, it is necessary to supplement calcium. The dosage and administration for infants are not described in detail in the instruction manual, so consult a healthcare professional for details and take it according to the doctor’s prescription. Note that hypercalcemia, hyperuricemia, calcium-containing kidney stones or a history of kidney stones are contraindicated. Adverse reactions such as belching and constipation may occur when taking the drug. Infants and young children are special populations should be cautious of the use of drugs, it is recommended that if there is a need for the use of drugs, please under the guidance of a doctor to regulate the use of drugs, to avoid causing adverse reactions.