<unk>  <unk>  is a class of anticoagulant medications. They are used in the prevention of blood clots and treatment of venous thromboembolism (deep vein thrombosis and pulmonary embolism) and in the treatment of myocardial infarction. Heparin is a naturally occurring polysaccharide that inhibits coagulation, the process that leads to thrombosis. Natural heparin consists of<unk>  chains of varying lengths, or<unk><unk> s. Chains of varying<unk><unk> s, from 5000 to over 40,000 Daltons, make up polydisperse pharmaceutical-grade heparin.<unk> s, in contrast, consist of only short chains of polysaccharide.<unk> s are defined as heparin salts having an average<unk><unk>  of less than 8000 Da and for which at least 60% of all chains have a<unk><unk>  less than 8000 Da. These are obtained by various methods of fractionation or depolymerisation of polymeric heparin. Heparin derived from natural sources, mainly porcine intestine or bovine lung, can be administered therapeutically to prevent thrombosis. However, the effects of natural, or unfractionated heparin are more unpredictable than<unk> .
Low-molecular-weight heparin
Fibrinolysis
Enoxaparin sodium
Thrombectomy
Palladin
Heparin
Tissue plasminogen activator
Tinzaparin sodium