Dosage of iron dextrose tablets for children: in general, weight less than 5 kg: 1 tablet/day; weight 5-9 kg: 2 tablets/day; weight more than 9 kg: according to the adult dosage, 2-4 tablets at a time, 1-3 times a day. As children are in the stage of growth and development, the development and maturity of organ functions are different in each age group, and the sensitivity to drugs is different, it is necessary to use drugs cautiously and strictly control the intake dose according to the age of children and so on. During the growth and development of children, there are differences in body weight, and the use of medicines for children is generally based on body weight to calculate the dosage, the weight of different medicines will be different, when taking medicines should also take into account the factors of children’s body weight. Parents are advised to take their children to professional medical institutions for consultation. Doctors will determine the dosage of medicines according to the child’s physical condition, age, weight, severity of the disease and other factors.