AD drops should be clinically known as vitamin AD drops, usually do not need to interval or pause the medication, can continue to take until the age of 2 to 3 years, children can eat a variety of foods until. AD drops of its main ingredients for vitamin D, vitamin A, the baby’s growth and development has an important role. They are commonly used in the prevention and treatment of rickets and night blindness caused by vitamin A and vitamin D deficiency. AD drops can be discontinued when children are 2 to 3 years old. Vitamin AD supplementation is needed due to rapid development and unbalanced nutritional intake in children before the age of 2 to 3. After the age of 2 to 3, many different foods can be eaten and nutritional intake will become more balanced, and it can be stopped at this time. When parents give AD drops to their babies, they should avoid overdosing resulting in chronic toxicity. Its early symptoms are bone and joint pain, swelling, itchy skin, nausea and constipation. Contraindications are chronic renal failure, hypercalcemia, hyperphosphatemia with renal rickets. Vitamin AD drops should be used under medical supervision.