DaZhu Rhodiola Rosea Capsule for Coronary Artery Disease With Angina Pectoris

Inclusion Criteria: * Age 18 to 75 years old * Coronary heart disease with grade Ⅱ or Ⅲ stable or unstable angina (≥ 2 times per week), or residual angina-like symptoms 1 month to 1 year post percutaneous coronary intervention (PCI) or 3 months to 1 year post coronary artery bypass surgery (CABG) * Written informed consent Exclusion Criteria: * Acute myocardial infarction within 1 month before admission * Patients who plan to undergo revascularization in the next 3 months * Congestive heart failure, acute myocarditis or pericarditis, thrombophlebitis, pulmonary embolism, or severe neurosis within 3 months prior to admission * Patients with uncontrolled high blood pressure (systolic blood pressure greater than 160 mmHg or diastolic blood pressure greater than 100 mmHg), severe cardiopulmonary insufficiency (cardiac function grade Ⅲ, Ⅳ or left ventricular ejection fraction (LVEF) \< 40%), severe arrhythmia (rapid atrial fibrillation and flutter, paroxysmal ventricular tachycardia, degree Ⅱ type Ⅱ and degree Ⅲ atrioventricular block, etc.) * Severe liver, kidney and hematopoietic system dysfunction or psychosis (serum alanine aminotransferase (ALT) or aspartate aminotransferase (AST) \> 2 times the normal upper limit, or serum creatinine \> 1.5 times the normal upper limit) * History of bleeding or treatment with warfarin * Implanted pacemakers * Pregnant or lactating women * Allergic to study drugs * Legal disability (blindness, deafness, dumbness, intellectual disability, mental disability, physical disability) * Patients who participated in other clinical trials within 3 months