BENEFIX® What are the possible side effects of BeneFIX?

(Coagulation Factor IX (Recombinant))

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:

 
wheezing
 
difficulty breathing
 
chest tightness
 
turning blue (look at lips and gums)
 
fast heartbeat
 
swelling of the face
 
faintness
 
rash
 
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.

Find BENEFIX® medical information:

Find BENEFIX® medical information:

Our scientific content is evidence-based, scientifically balanced and non-promotional. It undergoes rigorous internal medical review and is updated regularly to reflect new information.

BENEFIX® Quick Finder

Medication Guide

Health Professional Information

What are the possible side effects of BeneFIX?

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:

 
wheezing
 
difficulty breathing
 
chest tightness
 
turning blue (look at lips and gums)
 
fast heartbeat
 
swelling of the face
 
faintness
 
rash
 
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.

Prescribing Information
Download Prescribing Information

Health Professional Information

What are the possible side effects of BeneFIX?

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:

 
wheezing
 
difficulty breathing
 
chest tightness
 
turning blue (look at lips and gums)
 
fast heartbeat
 
swelling of the face
 
faintness
 
rash
 
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.

Resources

Didn’t find what you were looking for? Contact us.

MI Digital Assistant

Chat online with Pfizer Medical Information regarding your inquiry on a Pfizer medicine.

Call 800-438-1985*

*Contact Medical Information.9AM-5PM ET Monday to Friday; excluding holidays.

Report Adverse Event

Pfizer Safety

To report an adverse event related to the Pfizer-BioNTech COVID-19 Vaccine, and you are not part of a clinical trial* for this product, click the link below to submit your information:

Pfizer Safety Reporting Site

*If you are involved in a clinical trial for this product, adverse events should be reported to your coordinating study site.

If you cannot use the above website, or would like to report an adverse event related to a different Pfizer product, please call Pfizer Safety at (800) 438-1985.

FDA Medwatch

You may also contact the U.S. Food and Drug Administration (FDA) directly to report adverse events or product quality concerns either online at www.fda.gov/medwatch or call (800) 822-7967.