Pharmacological treatment of coronary artery disease is particularly important and commonly analyzed as follows: 1, anti-platelet drugs, which can prevent thrombosis; 2, statin lipid-lowering drugs, which can lower lipids and intervene on plaque and improve the prognosis of patients with coronary artery disease; 3, β-blockers, such as metoprolol and bisoprolol, which are the first-line drugs for patients with stable angina when there is no obvious contraindication, and for patients with unstable angina, which can reduce the acute The incidence of myocardial infarction can be reduced in patients with unstable angina, which is the drug of choice for non-antiplatelet therapy. 4, angiotensinase inhibitors (ACEI): such as captopril, fosinopril, belapril, etc.