Most of the causes of cardiovascular blockage are due to atherosclerosis, and clinical treatment is mainly to reduce atherosclerosis. At present, there are two major classes of drugs. The first is statins, which are cholesterol-lowering drugs. The second anti-platelet drugs, the most commonly used is aspirin. The third other drugs to improve symptoms include nitroglycerin. The third other drugs to improve symptoms include nitroglycerin, Vanzantine, Betaloc, etc. If combined with other diseases, such as diabetes, hypertension, renal insufficiency, etc. need to be treated at the same time, can minimize the progress of atherosclerosis.