1. Prevent thrombosis and embolism, such as deep venous thrombosis, myocardial infarction, pulmonary embolism, thrombophlebitis and postoperative thrombosis.

　　2. Treatment of disseminated intravascular coagulation (DIC) caused by various causes, such as bacterial sepsis, early placental dissection, and DIC caused by malignant tumor cell lysis, except for DIC caused by snake bite. Early use prevents the depletion of fibrinogen and other clotting factors.

　　3. Other internal and external anticoagulant blood, such as cardiac catheterization, cardiac surgery, cardiopulmonary bypass, hemodialysis, etc.