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. 2007 May;12(5):381–383. doi: 10.1093/pch/12.5.381

TABLE 2.

Dosing suggestions of factor VIII (FVIII) and factor IX (FIX) for different clinical conditions

Initial dose of FVIII (U/kg of body weight)* Initial dose of FIX (U/kg of body weight)*
Minor bleeding 10–15 25–35
 Early joint or muscle bleeding
 Severe nose bleed
 Persistent blood in urine
 Mouth bleed that does not respond to antifibrinolytics
Major bleeding 20–30 45–70
 Advanced joint or muscle bleed
 Bleed into neck, tongue or throat
 Prophylaxis following severe trauma without bleeding
Life-threatening bleeding 40–50 95–120
 Severe head injury
 Surgery (except dental)
 Bleeding after major trauma
 Bleeding into the abdomen
Dental extraction 10–15 25–35

*Vial sizes are typically 250 U, 500 U and 1000 U. Check with blood bank regarding availability of vial sizes