Also available in 1 mg, 2 mg, 5 mg, 25 mg, 50 mg, 100 mg, 200 mg and bulk. Please contact Fisher for quotes. Enoxaparin sodium is a low-molecular-weight heparin (LMWH) that has recently been approved by the US FDA for use in patients with medically managed ST-segment myocardial infarction (STEMI), or STEMI with subsequent percutaneous coronary intervention (PCI). It binds to and potentiates the action of antithrombin, and inhibits coagulation factors XIa, IXa, Xa and IIa (thrombin), thereby preventing formation of blood clots.