Enoxaparin is a blood thinner that you inject under your skin or into a blood vessel to treat or prevent blood clots or problems after heart problems. Learn about its dosage forms, side effects, warnings, interactions, and how to store it. Enoxaparin sodium injection , USP is a sterile aqueous solution containing enoxaparin sodium USP, a low molecular weight heparin. The pH of the injection is 5.5 to 7.5. Enoxaparin is a low molecular weight heparin used to prevent or treat blood clots in various situations. Learn how to use it, what precautions to follow, and what side effects to watch out for. 3 DOSAGE FORMS AND STRENGTHS Enoxaparin Sodium Injection , USP is a clear, colorless to pale-yellow solution available as follows: 100 mg per mL Concentration - – Multi-Dose Vial300 mg per 3 mL 4 CONTRAINDICATIONS