Patients with acute myocardial infarction should be given the following (unless contraindicated): Antiplatelet drugs: Aspirin, clopidogrel, or both (prasugrel or ticagrelor are alternatives to clopidogrel) Anticoagulants: A heparin (unfractionated or low molecular weight heparin) or bivalirudin Glycoprotein IIb / IIIa inhibitor when PCI is done Antianginal therapy usually nitroglycerin Beta-blocker ACE inhibitor Statin All patients are given aspirin 160 to 325 mg (not enteric-coated), if not contraindicated, at presentation and 81 mg once a day indefinitely thereafter.