Irbesartan belongs to the ARB class of drugs, that is, the angiotensin II receptor antagonist class of antihypertensive drugs, the ARB class of antihypertensive drugs can reduce both high blood pressure, that is, systolic blood pressure, as well as low blood pressure, that is, diastolic blood pressure. ARB antihypertensive drugs belong to a kind of angiotensin II receptor antagonist, the common ones are chlorosartan potassium, irbesartan and valsartan. Currently, they are commonly used in young people with hypertension and hypertensive patients with diabetes mellitus or proteinuria. Numerous studies have shown that ARB antihypertensive drugs have significant renoprotective effects. For the phenomenon of proteinuria caused by kidney damage, it can reduce proteinuria and improve kidney function. Irbesartan common adverse reactions are cough, palpitations, dizziness and other symptoms, and this drug is prohibited for those who are allergic. ARB antihypertensive drugs are widely used in the treatment of clinical hypertension, the need for oral antihypertensive drugs, should be used under the guidance of a doctor.