May 24, 2017
Recommended Topic Related To:


"Potential drug treatments are tested on paper, in laboratories and eventually in thousands of people. But every drug that goes through this cycle “ every drug that FDA approves “ carries some risk. One of the first lines of defense against "...



BeneFIX Patient Information Including Side Effects

Brand Names: Alphanine SD, Benefix, Mononine

Generic Name: coagulation factor IX (Pronunciation: koh AG yoo LAY shun FAK tor)

What is coagulation factor IX (BeneFIX)?

Coagulation factor IX is a man-made protein that is similar to a natural protein in the body that helps the blood to clot.

Coagulation factor IX is used to treat or prevent bleeding in people with hemophilia B. This medication is not for treating people with hemophilia A factor VII deficiency.

Coagulation factor IX may also be used for purposes other than those listed here.

What are the possible side effects of coagulation factor IX (BeneFIX)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have any of these serious side effects:

  • fever or chills;
  • continued bleeding after treatment;
  • feeling like you might pass out;
  • sudden numbness or weakness, especially on one side of the body;
  • sudden headache, confusion, problems with vision, speech, or balance; or
  • swelling in your feet or ankles, weight gain, loss of appetite.

Less serious side effects may be more likely to occur, such as:

  • headache;
  • warmth, redness, or tingly feeling under your skin;
  • nausea, vomiting;
  • dizziness; or
  • pain, redness, or swelling where the medicine was injected.

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.

Read the BeneFIX (coagulation factor ix recombinant for injection) Side Effects Center for a complete guide to possible side effects

What is the most important information I should know about coagulation factor IX (BeneFIX)?

Do not use this medication if you have ever had an allergic reaction to a clotting factor medication, or if you are allergic to hamster proteins.

Before using this medication, tell your doctor if you are allergic to latex rubber, or if you have liver disease, coronary artery disease (hardening of the arteries), or a history of stroke or heart attack.

To be sure this medication is helping your condition, your blood will need to be tested on a regular basis. Do not miss any scheduled appointments.

Carry an ID card or wear a medical alert bracelet stating that you have a bleeding disorder in case of emergency. Any doctor, dentist, or emergency medical care provider who treats you should know about your condition.

Side Effects Centers

Benefix - User Reviews

Benefix User Reviews

Now you can gain knowledge and insight about a drug treatment with Patient Discussions.

Here is a collection of user reviews for the medication Benefix sorted by most helpful. Patient Discussions FAQs

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Women's Health

Find out what women really need.