13-year-old medication needs to be taken according to the instructions of the drug, and can not be divided by the boundaries of adults or children. Although 13-year-old children are in puberty, but does not mean that the medication needs to be taken according to the dosage of adults, and can not simply take the age of the child as the standard medication, otherwise it may lead to the failure of the effectiveness of the drug, you need to take the medication according to the instructions of the medication, the dosage calculation of the use of different drugs are also different, common body weight division, surface area division, age group division, and so on. Any drug itself has certain side effects, so it is recommended that the medication be taken under the guidance of a doctor and not used on its own.