When to Escalate
How Enoxaparin Creates Safety Problems
Enoxaparin is a low molecular weight heparin used to prevent or treat thrombosis.
Enoxaparin is a low-molecular-weight heparin used to prevent or treat thrombosis. Its anticoagulant effect reduces clot formation, but the same effect can turn a small occult bleed into significant blood loss. Safe administration therefore starts before the syringe reaches the patient. Bleeding risk is not determined by the prescribed dose alone. Renal clearance, recent procedures, concurrent drugs, platelet trends, and the indication for anticoagulation all change the balance between preventing thrombosis and causing harm. An intramuscular injection is contraindicated. Muscle tissue is vascular, confined by fascia, and easily traumatized by a needle; anticoagulation can convert that trauma into a deep hematoma. Enoxaparin is given subcutaneously, not IM.