Western drugs that dilate blood vessels mainly include nitrates, ACEIARB, calcium channel blockers, a receptor blockers and so on. 1. Nitrates: common drugs mainly include isosorbide dinitrate, nitroglycerin, isosorbide mononitrate and so on. Generally administered orally, they can dilate blood vessels, as well as reduce myocardial oxygen demand and improve myocardial perfusion, thus reducing the onset of angina pectoris. 2. ACEIARB: Common drugs include enalapril, captopril, valsartan, and chlorosartan potassium. Usually after the administration of drugs can dilate blood vessels, as well as inhibit the release of aldosterone, mainly used in the treatment of hypertension and other diseases. 3. Calcium channel blockers: common drugs include nifedipine, amlodipine, lacidipine, levitra amlodipine and so on. Usually the drugs can dilate blood vessels and reduce the resistance of blood vessels, mainly used in the treatment of hypertension and other diseases. 4. a receptor blocker: common drugs include uradil and so on. It can dilate blood vessels and reduce peripheral vascular resistance after use, and is mainly used in the treatment of acute heart failure and other diseases.