What are the possible side effects of BeneFIX?
Allergic reactions may occur with BeneFIX. Call your doctor or get emergency treatment right away if you have any of the following symptoms:
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- wheezing
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- difficulty breathing
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- chest tightness
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- turning blue (look at lips and gums)
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- fast heartbeat
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- swelling of the face
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- faintness
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- rash
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- hives
Your body can also make antibodies, called "inhibitors," against BeneFIX, which may stop BeneFIX from working properly.
Some common side effects of BeneFIX are fever, cough, nausea, injection site reaction, injection site pain, headache, dizziness and rash.
BeneFIX may increase the risk of thromboembolism (abnormal blood clots) in your body if you have risk factors for developing blood clots, including an indwelling venous catheter through which BeneFIX is given by continuous infusion. There have been reports of severe blood clotting events, including life-threatening blood clots in critically ill neonates, while receiving continuous-infusion BeneFIX through a central venous catheter. The safety and efficacy of BeneFIX administration by continuous infusion have not been established.
These are not all the possible side effects of BeneFIX.
Tell your doctor about any side effect that bothers you or that does not go away.