 Using antihemophilic factor, recombinant (Xyntha)
Dear Patient,
Your health care provider has prescribed an antihemophilic drug made from Chinese hamster cells that may not be associated with as many hypersensitivity reactions as human products. It replaces factor VIII, which is missing from your blood because you have hemophilia A. The brand name of this drug is Xyntha.
How to take antihemophilic factor
Infuse the prescribed dose of antihemophilic factor directly into your vein as prescribed.
What to do if you miss a dose
Consult with your health care provider if you miss a regular dose; don’t take double doses.
What to do about side effects
Notify your health care provider if you experiences side effects from this medication.
Common: headache (medications may be available to help), nausea, vomiting, diarrhea
Less common: hypersensitivity reactions.
What you must know about other medications
There are no known drug interactions with this drug, but you should tell any health care provider taking care of you that you’re taking this drug.
Special directions
- Store this medication in the refrigerator. If you store it at room temperature, mark the carton with the current date and throw away any drug left after 3 months.
- Remove the vial and prefilled diluent from the refrigerator and allow it to reach room temperature.
- Follow the manufacturer’s directions for reconstituting the powder using the provided syringe. Don’t use if the reconstituted solution isn’t clear and colorless.
- You and/or a significant other will need to learn the proper technique for IV injection. Always wash your hands before beginning the process. Maintain a clean area for working.
- You will need to arrange for appropriate dispose of the syringes and needles.
Keep in mind
- It’s unknown if this drug could injure a fetus. Use during pregnancy only if clearly needed and advised by your health care provider. If you should become pregnant on this drug, consult your health care provider immediately.
- It’s unknown how this drug could affect a nursing baby. Because of the potential for serious adverse effects on an infant, you should use another method of feeding the baby while you’re taking this drug.
- You will need periodic blood tests to monitor your clotting status and to determine the appropriate dosage of the drug.
- If you’re traveling, arrange to have enough medication with you for treatment while you’re away.
- Report wheezing, difficulty breathing, chest tightness, blue-tinged lips or gums, fast heart beat, swelling of the face, faintness, rash, hives, bleeding.
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