Heparin is a polysaccharide extracted from pig small intestine. It is used for the prevention and treatment of thromboembolic diseases, such as: myocardial infarction, pulmonary embolism, cerebrovascular embolism, peripheral venous thrombosis, etc. It can prevent the formation and expansion of thrombus. It can also be used in the early stage of DIC, and other anticoagulation inside and outside the body.

The highest price of heparin sodium had reached 40,000 yuan/kg in 2009. Its benefit is quite considerable