Heparin sodium is an anticoagulant drug in vivo and in vitro, as well as a drug that can treat bleeding and coagulation diseases. Therefore, heparin sodium can participate in and interfere with multiple links in the coagulation process and play an anticoagulant role in vivo and in vitro.

　　Clinically, heparin sodium is most commonly used for anticoagulation and hemodialysis during intravenous infusion, and can also be used to prevent embolic diseases, such as pulmonary embolism, myocardial infarction, deep vein thrombosis and postoperative thrombosis. It can also treat multiple causes of diffuse intravascular coagulation, such as placental abruption and sepsis.

　　Using heparin requires careful dosing and duration of use, and the most common adverse reaction is bleeding, anywhere in the body. Try not to use it for a long time to avoid osteoporosis, and it is forbidden for patients allergic to heparin sodium.

　　Contraindications: 1. Allergic symptoms to heparin sodium. 2. Subacute bacterial infective endocarditis. 3. Severe and abnormal coagulation. 4. Platelet inattention symptoms and platelet aggregation test positive outside the body. 5. Symptoms of allergy to heparin or meat products. 6. Patients with active gastric and duodenal ulcers and cranial injury accidents (except those with systemic venous thrombosis). 7. Within 3 months before pregnancy.