SC-54684A, an orally active antiplatelet drug now in clinical trial, is shown to be a potent, specific fibrinogen binding inhibitor that blocks platelet aggregation to a wide variety of known stimuli and has good bioavailability in animals.
SCa has dose-dependent antithrombotic efficacy and inhibits ex vivo platelet aggregation. ASA, heparin, or saline was ineffective in this model. SCa (0.5X) plus ASA and heparin maximized the antithrombotic effect of this lower dose of SCa.
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