Children’s medication can not be halved according to the adult dosage, because children’s body metabolism and adult is a certain gap, in order to be safe and avoid the risk of medication, children’s medication need to follow the doctor’s instructions. Many drugs may be divided according to age, but also some are based on weight, so you can not take half of the adult dosage as a standard for children to take medication, otherwise not only can not achieve a better therapeutic effect, but also increase the risk of medication, endangering the health of children. In addition, many drugs are not suitable for children to use, such as codeine phosphate extended-release tablets and other drugs, so in the children’s sick need to follow the doctor’s advice, do not give children unauthorized use of drugs.