Babies born prematurely are prone to immature liver and gallbladder development, calcium deficiency, anemia, and lagging behind in growth and development, so there are some medications to take home with you when you are discharged from the hospital. Different drugs, the use of time method is not the same. 1.Vitamin D preparation Vitamin AD mixed preparation, there are also simple vitamin D. Preterm babies are prone to lack of vitamin AD, vitamin A can enhance the baby’s immunity, vitamin D to promote the absorption of calcium in breast milk and make it deposited in the bones, promote bone growth, vitamin AD can be fed to the child together with milk. 2, the use of calcium and iron The child’s growth and development can not be separated from the iron and calcium, the birth weight of less than 1500g of the baby, more or less have anemia, and anemia will affect the child’s growth and intellectual development. It should be noted that calcium and iron can not be eaten with milk, must be fed to the child in the middle of the two milk, and calcium and iron can not be eaten together, so parents need to rationalize the time. 3, probiotics The main role of probiotics is to regulate the growth of normal intestinal flora, can regulate the intestinal function of preterm infants, improve constipation, excessive stool frequency and other symptoms, and can be fed to the child with milk. It should be noted that because probiotics are live bacteria, so they must be brewed with water below 40 degrees Celsius, and need to be placed in the refrigerator.