This collection of review articles highlights the latest development of antithrombotics and provides proven experimental methods for the further development of new and improved anticoagulants. Among the cutting-edge developments reviewed are the novel usage of low molecular weight heparins, such antithrombin agents as the hirudin, and such antiplatelet drugs as the GPIIb/IIIa inhibitors and ADP receptor antagonists. Additional innovations discussed include aspirin and clopidogrel, the expanded use of polytherapeutic approaches, antiproteases (factors IIa, Xa, and VIIa), tissue factor targeting, platelet receptor targeting, and antithrombin III modulation.