Lundy Calcium Carbonate D₃ Tablets for children can be taken orally need to be combined with the child has a calcium deficiency, such as calcium deficiency can be appropriate oral, to help calcium supplementation, such as calcium deficiency, it is not recommended to take oral. If there is no calcium deficiency, oral intake is not recommended. Calcium is the most abundant mineral element in the human body, calcium is required to maintain the normal function of children’s nervous, muscular and skeletal systems, etc. Vitamin D helps the metabolism of calcium and phosphorus, promotes its absorption and plays an important role in bone formation. Whether a child is deficient in calcium can be clarified through a number of tests such as blood calcium, urinary calcium, ionized calcium, bone mineral of bone density. 1. Calcium deficiency: If children are clearly deficient in calcium, calcium carbonate D₃ tablets can be taken orally as prescribed by the doctor, and those who have difficulty in swallowing can chew and swallow. Adverse reactions mainly include belching, constipation, etc. Overdose can cause hypercalcemia. It is forbidden for those who have hypercalcemia, hyperuricemia and calcium-containing kidney stones. 2. No calcium deficiency: children without calcium deficiency do not need to take this product orally, such as self-administration may interfere with zinc and iron absorption, affecting children’s growth and development. Children who need to take this product orally are advised to consult a doctor in time and not to take the drug on their own.