Adult & elderly 75 mg as single daily dose.
Non-ST segment elevation acute coronary syndrome (unstable angina or non-Q-wave MI) Initially 300 or 600 mg as single loading dose, followed by 75 mg once daily (w/ ASA 75-325 mg daily).
Elderly <75 yr Consider a 600 mg loading dose when PCI is intended.
ST segment elevation acute MI 75 mg as single daily dose, initiated w/ 300 mg loading dose in combination w/ ASA & w/ or w/o thrombolytics.
Elderly >75 yr Initiate therapy w/o loading dose.
Adult Moderate to high-risk TIA or minor IS 300 mg as loading dose followed by 75 mg once daily (w/ ASA 75-100 mg once daily). Start w/in 24 hr of the event & continued for 21 days followed by single antiplatelet therapy.
Patient w/ atrial fibrillation 75 mg as single daily dose (w/ ASA 75-100 mg daily).