About human plasma coagulation factor ix
Coagulation factor IX replacement
Used for
- Prevention and treatment of bleeding in haemophilia B (factor IX deficiency).
- Bleeding control around surgery in people with haemophilia B.
Usual adult dose
Intravenous dosing is individualized by body weight, factor IX level, bleeding severity, and product instructions. Typical starting dose: units = body weight (kg) × desired factor IX rise (%) × 1.0; adjust to measured levels and clinical response.
Usual dose in children
Same calculation as adults, using body weight; dosing and monitoring are individualized by a haemophilia specialist.
Common side effects
- Headache, dizziness, or altered taste
- Injection-site reactions, fever, or chills
- Allergic reactions, including rarely severe hypersensitivity
- Blood clots, especially in people with risk factors
Important warnings
- May cause inhibitors (antibodies) that reduce treatment effectiveness.
- Severe allergic reactions can occur; stop infusion and seek urgent care if they develop.
- Monitor factor IX levels and watch for clotting complications.
- Use only by intravenous infusion, following the product instructions.
Pregnancy
Pregnancy experience is limited. Use when clearly needed, with specialist assessment of bleeding and clotting risks.
Breastfeeding
Information is limited; discuss use with a clinician. The medicine is a protein and is unlikely to pass into breast milk intact.
Interactions
- No specific medicine interactions are well established; tell clinicians about all medicines and supplements.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.