Factor IX is a protein naturally produced in the body that helps your blood to clot.
A lack of factor IX can cause uncontrolled bleeding, as the blood is unable to clot properly. Factor IX complex is used to help prevent or control bleeding problems in those who have a condition called haemophilia B (an inherited bleeding disorder caused by low levels of factor IX).
This medicine may be used to treat other conditions as decided by your doctor.
Factor IX complex injection is to be given intravenously (into the vein). It is delivered directly into the bloodstream via the blood vessel.
Your doctor or nurse will administer the injection for you.
The dose of Factor IX complex will be decided by your doctor. Your doctor will advise you on the course of treatment depending on the severity of your condition and your response to the medication.
Ensure that you keep all appointments with your doctor so that you do not miss any doses. Your doctor also needs to regularly monitor your response to Factor IX complex.
If you miss an appointment or miss an injection, alert your doctor or nurse. A replacement appointment or injection should be given as soon as possible.
Inform your doctor if you have the following conditions:
- history of coronary artery disease (narrowing of the blood vessels of the heart)
- bleeding problems
- liver disease
Let your doctor know if you are pregnant.
Why is it important to keep my appointments with the doctor?
Keep your appointments with your doctor. Your doctor needs to monitor your condition and check your response to the medication regularly.
- Routine tests (e.g. factor IX levels) may be done while you are being treated with this medicine. Your doctor will advise you about how often you need to have these tests.
- Regular monitoring of signs of allergies and infusion site reactions may also be needed.
Factor IX complex may cause any of the following side effects: headache, nausea, vomiting, and flushing.
Some side effects may need immediate medical help. Alert your doctor quickly if you experience any of the following:
- signs and symptoms of an allergic reaction e.g. rashes, breathlessness, swelling of the face, eyes or mouth
- pain, swelling and tenderness in your leg accompanied by redness and warmth
- signs and symptoms of blood clots in a lung artery e.g. shortness of breath, chest pain, cough which may contain blood
Inform your doctor if any of these side effects do not go away or are severe, or if you experience other side effects.
Always notify your doctor and pharmacist if you are taking or using any other medicines, including herbal tonics such as traditional Chinese medicines, supplements, and medicines that you buy without a prescription.
Avoid alcohol.
Store in a cool, dry place away from the reach of children.
Medicines must not be used past the expiry date.
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