Quick-acting heart pills are taken or sublingually during the onset of coronary heart disease, myocardial ischemia and angina pectoris. They have a fast onset of action and few side effects, and have the effect of activating blood circulation, removing blood stasis and relieving pain. Through the effect of increasing coronary blood flow, it can improve myocardial ischemia. Patients with intractable angina can combine sublingual nitroglycerin to increase the dilatation of coronary arteries and correct myocardial ischemia, which can effectively relieve angina. At the same time, oral aspirin or clopidogrel hydrogen sulfate tablets can inhibit platelet aggregation and reduce the incidence of thrombosis, and statins can also be taken to regulate esters and stabilize plaque. If necessary, patients are advised to have further examinations, such as coronary CTA or coronary angiography, to clarify the degree of coronary stenosis and the extent of stenosis and to guide clinical treatment.