Comparative Pharmacology
Head-to-head clinical analysis: FRAGMIN versus SODIUM HEPARIN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: FRAGMIN versus SODIUM HEPARIN.
FRAGMIN vs SODIUM HEPARIN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Fragmin (dalteparin) is a low molecular weight heparin that binds to antithrombin III, potentiating its inhibition of factor Xa and, to a lesser extent, thrombin, thereby preventing thrombus formation.
Binds to antithrombin III, accelerating its inhibition of factor Xa and thrombin (factor IIa), thereby preventing fibrin formation and extension of thrombi.
Deep vein thrombosis prophylaxis: 2500 IU subcutaneously once daily, starting 1-2 hours before surgery and continuing postoperatively for 5-10 days or until ambulatory. Treatment of acute DVT: 200 IU/kg subcutaneously once daily, or 100 IU/kg twice daily. Unstable angina/NSTEMI: 120 IU/kg subcutaneously every 12 hours (max 10,000 IU per dose) with aspirin.
Initial IV bolus 80 units/kg followed by continuous IV infusion at 18 units/kg/hour; adjusted based on aPTT. Alternatively, subcutaneous: 333 units/kg loading dose then 250 units/kg every 12 hours.
None Documented
None Documented
2-4 hours (anti-Xa activity) after subcutaneous administration; prolonged in renal impairment (creatinine clearance <30 mL/min: up to 6-12 hours)
Terminal elimination half-life is dose-dependent: 0.5-1.5 hours at low doses, 1.5-2.5 hours at high doses. Clinically, anticoagulant effect half-life is approximately 1-5 hours, with shorter half-life at lower doses.
Primarily renal excretion (up to 70% as unchanged drug via glomerular filtration); minor biliary/fecal elimination (<15%)
Renal: negligible; primarily cleared by hepatic and reticuloendothelial system (desulfation and depolymerization). Unchanged drug not excreted in urine.
Category C
Category A/B
Anticoagulant
Anticoagulant