Prevention of atherothrombotic events in patients suffering from: Myocardial infarction (from a few days until <35 days), ischaemic stroke (from 7 days until <6 months) or established peripheral arterial disease; non-ST segment elevation acute coronary syndrome (unstable angina or non-Q-wave myocardial infarction), including patients undergoing a stent placement following percutaneous coronary intervention, in combination with ASA. ST segment elevation acute myocardial infarction, in combination with ASA in medically treated patients eligible for thrombolytic therapy.