Prothrombin complex concentrates

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  • Type: Hemostatics, blood components
  • Dosage Forms:lypophilized concentrate for reconstitution 500u/vial and 1000u/vial
  • Common Trade Names: Kcentra

Adult Dosing

  • Based on pretreatment INR, units based on factor 9 content
    • INR 2-4: 25units/kg, not to exceed 2500 units
    • INR 4-6: 35units/kg, not to exceed 3500 units
    • INR >6: 50units/kg, not to exceed 5000 units
  • Consider rechecking INR after 15 minutes to determine need for redosing

Pediatric Dosing

  • Safety and efficacy not established

Special Populations

  • Pregnancy Rating: C
  • Lactation: Unknown, breast feeding not advised
  • Renal Dosing
    • Adult-N/A
    • Pediatric-N/A
  • Hepatic Dosing
    • Adult-N/A
    • Pediatric-N/A


  • Allergy to class/drug
  • DIC
  • known HIT (Heparin induced thrombocytopenia)


  • Patients receiving PCC for reversal of a vitamin K antagonist (Warfarin) due to life-threatening bleeding have a rate of thromboembolism which is similar to the rate in patients who receive Fresh frozen plasma (7.3% v 7.1%).[1]



  • Half-life: 4-60 hours, depending on clotting factor
  • Metabolism:
  • Excretion:
  • Mechanism of Action: 4 factor PCC contains factors II, VII, XI, X, protein C and S

See Also


  1. Milling, TJ Jr et al. Thromboembolic events after vitamin K antagonist reversal with 4-factor prothrombin complex concentrate: exploratory analyses of two randomized, plasma-controlled studies. Ann Emerg Med. 2016 Jan;67(1):96-105. PMID: 26094105