Patient's question:
NoDoctor's answer:
Icarin is composed of vitamin A and vitamin D. Vitamins A and D are essential substances for human growth and development, particularly playing a significant role in the development of fetuses and infants, the integrity of epithelial tissues, vision, reproductive organs, the maintenance of blood calcium and phosphorus levels, and the growth and development of bones and teeth. It is used to prevent and treat deficiencies of vitamins A and D, such as rickets, night blindness, and tetany in children.