Background:

Prasugrel hydrochloride (PCR 4099 hydrochloride) is a platelet inhibitor with IC50 value of 1.8 μM.

Prasugrel (PCR 4099) is a novel platelet inhibitor used for the reduction of thrombotic cardiovascular events (including stent thrombosis) in patients with acute coronary syndrome who are to be managed with PCI[2].Prasugrel (PCR 4099) reduces the aggregation ("clumping") of platelets by irreversibly binding to P2Y12 receptors. In rat platelets, prasugrel hydrochloride AM inhibited in vitro platelet aggregation induced by ADP (10 μm) with an IC50 value of 1.8 Μm[2]].

参考文献:
[1]. Sugidachi A, et al. The greater in vivo antiplatelet effects of prasugrel as compared to clopidogrel reflect more efficient generation of its active metabolite with similar antiplatelet activity to that of clopidogrel's active metabolite. J Thromb Haemost. 2007 Jul;5(7):1545-51. Epub 2007 Apr 19.
[2]. Baker WL, et al. Role of prasugrel, a novel P2Y(12) receptor antagonist, in the management of acute coronary syndromes. Am J Cardiovasc Drugs. 2009;9(4):213-29.