Patients with ischaemic cardiomyopathy are advised to take long-term antithrombotic drugs in small doses to prevent myocardial infarction. Long-term use of beta-blockers can reduce myocardial infarction and slow down heart rate and reduce myocardial oxygen consumption. Long-term use of statins in patients with atherosclerosis can significantly reduce cardiovascular events and cardiovascular deaths, therefore, if there are no obvious contraindications, the drugs should be taken consistently over a long period of time.