A method of treating or preventing a disease or condition in a subject that was previously treated with at least one thienopyridine is described. The method includes administering to the subject an effective amount of at least one reversible, short-acting P2Yi2 inhibitor. The described method can be used for subjects diagnosed with symptoms such as stable or unstable angina, vascular ischemic events, atherosclerosis, acute coronary syndrome, as well as STEMi or N-STEMI. The described method can also be used for patients having previously received a stent, such as a bare metal stent or a drug-eluting stent, and the treatment or prevention of stent thrombosis. The method can be used prior to, during, or after an invasive procedure such as coronary artery bypass grafting, percutaneous coronary intervention, or other general surgical procedure.