Heparin sodium is an anticoagulant, can play an anticoagulant role in vivo and in vitro, can prolong the coagulation time, prothrombin time and thrombin time; Heparin sodium also has an anti-platelet aggregation effect, which can promote their metabolism.

　　Heparin sodium can be used as anticoagulant for blood transfusion, extracorporeal circulation, hemodialysis, peritoneal dialysis and in vitro experiments of blood samples.

　　Heparin sodium is used to treat the formation and spread of thrombosis, such as large deep vein thrombosis or pulmonary embolism.

　　Heparin sodium is the drug of choice for the treatment of disseminated intravascular coagulation, especially in the hypercoagulable stage, to reduce the depletion of coagulation factors.

　　It is effective for disseminated intravascular coagulation (DIC) in the following diseases, including amniotic fluid embolism, stillbirth syndrome, heterotransfusion reaction, fulminant purpura, sepsis, heat stroke, and metastatic cancer, but not for DIC caused by snake bite.

　　It is used as adjunctive therapy in acute myocardial infarction to reduce the complications of thromboembolism. It is used to prevent catheterized thromboembolism during arterial surgery and coronary angiography. Prevention and treatment of pulmonary embolism.

　　It can reduce the risk of cerebral thrombosis and reduce the mortality of hyperviscous blood. It can also treat recent deep vein thrombosis.

　　External soft: for the treatment of early chilblains, chapped ulcer, eczema and superficial phlebitis and soft tissue injury.