- Receiving daily treatment with aspirin (> 325 mg/day) or non-steroidal anti-inflammatory agents (NSAIDs) known to inhibit platelet function for chronic conditions; patients must not be receiving treatment with dipyridamole (Persantine), ticlopidine (Ticlid), clopidogrel (Plavix), and/or cilostazol (Pletal); if patient was receiving any of the following: aspirin (> 325 mg/day), NSAID, and/or anti-platelet drugs, patient must have discontinued its use ≥ 1 week prior to randomization