Heparin sodium is an anticoagulant, is a kind of mucosaccharide, is extracted from the intestinal mucosa of pigs, cattle, sheep sodium salt glucosamine sulfate, in the human body is secreted by mast cells and naturally exists in the blood. Heparin sodium Chemicalbook can prevent platelet aggregation and destruction, inhibit the transformation of fibrinogen into fibrin monomer, inhibit the formation of thrombin and counter the already formed thrombin, prevent the transformation of prothrombin into thrombin and antithrombin.