This document summarizes information about thrombosis and interventions for its treatment such as anticoagulants, antithrombotics, and antiplatelets. It then discusses nattokinase, an enzyme produced from soybeans fermented with Bacillus subtilis that has fibrinolytic properties and can help dissolve blood clots without inhibiting normal blood clot formation. The document reviews nattokinase's mechanisms of action, benefits, and references studies that have examined its effects on coagulation, fibrinolysis, and blood viscosity.