This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hematology, Subject name: Pharmacology
[{'content': 'All are antiplatelets drugs EXCEPT: \nSelect and explain. \nA. Aspirin, B. Clopidogrel, C. Dipyridamol, D. Warfarin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: (Warfarin): Ref: 571-72-KDT (609-602-KDT 6th)ANTIPLATELET-DRUGS (Antithrombotic drugs)* Aspirin* Clopidogrel* Dipyridamol* Abciximab* Ticlopidine (GPII b/IIIa antagonist)* Antifibrinolvtics - Epsilon amino-caproic acid (EACA) Transexaemic acid Aprotinin* Fibrinolytics (Thrombolytics) - Streptokinase, urokinase, Alteplase* Warfarin is oral anticoagulants', 'role': 'assistant'}]