The full name of ARB is angiotensin II receptor antagonist, which is a common therapeutic drug for cardiovascular system with blood pressure-lowering effect, and commonly used to treat hypertension, coronary heart disease, heart failure and so on. This class of drugs is also more suitable for patients with diabetic nephropathy, is the first choice of treatment drugs for patients with diabetic nephropathy. ARB is mainly metabolized by the liver, so generally speaking, patients with severe hepatic insufficiency can not be used, low blood pressure, bilateral renal artery stenosis and pregnancy patients and so on can not use this type of drug treatment. If the patient has cardiovascular disease, it is recommended that the patient go to the hospital in time, do not self-medication to avoid adverse consequences.