This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
All are Gp lIbilIla inhibitors except: 
Select and explain. 
A. Prasugrel, B. Abciximab, C. Tirofiban, D. Eptifibatide
A: Prasugrel
Answer: A: Prasugrel 
Explanation: Ans: A. Prasugrel(Ref Goodman Gilman 13/e p595, 12/e p870; Katzung 13/e p595, 12Ie p612; KDT 7/e p631)Prasugrel reduce platelet aggregation by inhibiting the ADP pathway of platelets. It irreversibly blocks the ADP receptor on platelets.Targets for platelet inhibitory drugs:Inhibition of prostaglandin synthesis (aspirin).Inhibition of ADP- induced platelet aggregation (clopidogrel, prasugrel, ticlopidine).Blockade of glycoprotein Ilb/IIIa receptors on platelets (abciximab, tirofiban, and eptifibatide). Dipyridamole & cilostazol - Additional antiplatelet drugs.