Children with high blood pressure need to take antihypertensive drugs in strict accordance with the doctor’s instructions to take, the dose of different drugs will have some differences. The antihypertensive drugs for children with high blood pressure are divided into angiotensin-converting enzyme inhibitors, angiotensin II receptor antagonists, calcium channel blockers, and diuretics, etc. The method of using each kind of drug varies, and the most common ones are according to body weight, according to the surface area, and from the adult dosage conversion and so on. The above drugs should not be taken by oneself, because too large a dose of antihypertensive drugs may cause hypotension and affect the normal blood supply to the organs, so when taking the drugs, you need to strictly follow the instructions of the doctor, and should not arbitrarily adjust the dosage of the drugs.