Antihypertensive drugs that protect renal function include vasoconverting enzyme inhibitors, vasoconverting enzyme receptor antagonists, Ca+2 antagonists, and β-blockers. Vasoconverting enzyme inhibitors, such as enalapril, fosinopril, captopril, and benazepril, and vasoconverting enzyme receptor antagonists, such as irbesartan, valsartan, coxsartan, and candesartan, have blood pressure-lowering effects and also reduce urinary protein. Calcium channel blockers, such as nifedipine, amlodipine, and felodipine, are well known to maintain renal perfusion and have a protective effect on the kidney. For patients with high angiotensin activity, beta-blockers, such as metoprolol and bisoprolol, are recommended to reduce the angiotensin activity. Patients with poor renal function are recommended to lower their blood pressure to below 130/80 mmHg. If single drugs are not ideal for lowering blood pressure, they can be combined.