Typical dosage for Idelvion
Idelvion (factor IX recombinant) is given as an injection into the veins (intravenous or IV). Your provider will determine the dose based on your body weight.
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Routine prevention of bleeds:
- Adults and children ages 12 years and older: The typical dose is 25-40 international units (IU)/kg IV once per week. If your bleeding is well-controlled with the weekly dosing, your provider might switch you to 50-75 IU/kg once every 2 weeks.
- Children ages less than 12 years: The typical dose is 40-55 IU/kg IV once per week.
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On-demand treatment of bleeding, including during surgery: Your provider will calculate your dose based on things like body weight, how serious your bleed is, where the bleed is, and the desired level of factor IX in your body.
- Minor bleed or surgery with minor bleed risk: The dose is given every 2-3 days, but usually one dose is enough to control bleeding.
- Major bleed or surgery with major bleed risk: The dose is given every 2-3 days for 1 to 2 weeks, or until bleeding stops.
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