Prasugrel

Prasugrel is a novel orally active thienopyridine with faster, higher and more reliable inhibition of platelet aggregation than clopidogrel reflecting its metabolism in vivo to an active metabolite with selective P2Y(12) antagonistic activity. ^[1]

Prasugrel shows platelet inhibition that was 8.2 times more potent than clopidogrel in WT mice. ^[1] Prasugrel (3 and 10 mg/kg) dose-relatedly and significantly reduces thrombus-mediated cerebral infarction 24 hours after the irradiation in rat models of cerebral and peripheral arterial occlusive diseases. Prasugrel (0.3-3 mg/kg) reduces incidence, total area, and total number of cerebral infarcts in a dose-related manner 24 hours after the vascular injury in an embolic infarction rats model. Prasugrel (0.03-3 mg/kg/day) administered from the day before the lauric acid injection for 11 successive days inhibits the progression of the disease in a dose-related manner in rats with lauric acid-induced peripheral arterial occlusive diseases. ^[2] Prasugrel administrated in dogs (0.03-0.3 mg/kg/day) and monkeys (0.1 and 0.3 mg/kg/day) once a day for 14 days results in potent, dose-related and cumulative inhibition of ADP-induced platelet aggregation. Prasugrel (0.1-1 mg/kg/day, p.o.) significantly prolongs the time to arterial occlusion and increases the duration of arterial patency in a rat model of electrically-induced arterial thrombosis. ^[3]