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What is Factor IX complex?

Factor IX complex replenishes clotting factors to manage bleeding disorders. It is supplied as a powder to be mixed with sterile water and given by IV.

Possible side effects

  • Allergic reactions (itching, hives, swelling, tightness in throat, trouble breathing)
  • Chest pain, trouble breathing, coughing blood
  • Fever or chills
  • Nausea or mild stomach pain
  • Lightheadedness
  • Yellowing skin or eyes
  • Joint pain
  • Severe headache, vision or speech problems, difficulty walking
  • Pain, itching, swelling, burning, or a lump at injection site
  • Lower leg pain
  • Numbness or weakness in limbs or one side of the body
  • Symptoms of allergic reaction also include rash, hives, itching, chills, fever, headache, muscle ache, shortness of breath, coughing, tightness in throat, swelling of face or neck
  • Not all patients will experience these side effects. Report any symptoms to the care team.

Tips for patients and families

  • Discuss all questions with your doctor or pharmacist.
  • Store in the refrigerator without freezing; do not use past expiration.
  • You may be taught home infusion; ensure you understand instructions before injecting.
  • Have another trained person available to help; contact your doctor for missed dose guidance.
  • Warm powder and diluent to room temperature before mixing; use within 3 hours of reconstitution.
  • Use new needles/syringes for each dose and dispose of sharps safely.
  • Ask the care team about proper disposal of leftover medicine and supplies.