The saying “three medicines for coronary heart disease” is not correct, patients can choose nitrate drugs, beta-blockers, antithrombotic drugs and statins. 1. Nitrate drugs: common nitrate drugs include nitroglycerin and isosorbide nitrate, which should be taken regularly according to the doctor’s instructions, and may cause side effects such as headache and low blood pressure, and are prohibited for those who are allergic to the ingredients of these drugs. 2. β-blockers: patients with coronary heart disease can also choose to take β-blockers, such as bisoprolol and metoprolol and other drugs, but it should be noted that this drug has a slow heart rate and other side effects, severe bradycardia patients, patients with bronchial asthma and sinus node dysfunction patients are prohibited from taking this drug. 3. Antithrombotic drugs: There are also antithrombotic drugs that can be taken, the most commonly used drugs are clopidogrel and aspirin, etc. Because of the adverse effects of this drug such as nausea and vomiting and abdominal pain, patients with stomach disorders and those who are allergic to this drug are prohibited from taking the above drugs. 4. Statin drugs: statin drugs have the effect of lowering blood fat, so if the patient is accompanied by high blood fat and other conditions, you can choose statin drugs, such as simvastatin, pravastatin and atorvastatin, etc., this drug has side effects such as skin flushing and headache, allergy patients are prohibited from taking this drug. Coronary heart disease patients need to be based on their own situation under the guidance of a professional doctor to choose drugs to take, not blindly take drugs without authorization.