Low molecular weight heparin sodium is a low molecular weight amino glucan sulfate, is a new anticoagulant, is composed of a variety of depolymeric groups of short chain heparin preparation. It has anticoagulation, antithrombotic, anti-inflammatory, antitumor and inhibition of mesangial cell and matrix proliferation.

　　There are many types of low molecular weight heparin sodium, common is heparin sodium, enoxparin sodium, chondroitin sulfate sodium, etc., they are anticoagulant and antithrombotic drugs, colorless or light yellow transparent liquid. Low molecular weight heparin sodium has fibrinolytic activity and can dissolve formed fresh thrombecs. These drugs have less inhibitory effect on platelet aggregation and have antithrombotic effect on the human body.

　　Clinical application :① Prevention of deep vein thrombosis and pulmonary embolism. ② Treatment of acute deep vein thrombosis. ③ Hemodialysis or hemofiltration can prevent thrombus formation or clotting in the extracorporeal circulation system. ④ Low molecular weight heparin sodium is suitable for the prevention and treatment of postoperative thrombosis.