Let's take a minute to talk about your medication. 

This is BeneFIX. This medicine contains a blood clotting factor called 'Factor IX'. People with hemophilia B do not have enough Factor IX, and they are at risk for bleeding. BeneFIX raises the levels of Factor IX in the blood, which can prevent and control bleeding in hemophilia B.

BeneFIX is given into a vein. This is known as an 'intravenous' or 'IV' infusion. You may receive your doses in a clinic, at your doctor's office, or at home. Before using this medicine at home, though, you must receive full training from your healthcare provider and read the "Instructions for Use". 

Common side effects include a headache, nausea, or feeling a little dizzy. Sometimes, the injection site will be tender. You should call your doctor if these effects or others do not go away, or if they get worse instead of better. As with any medicine, more serious side effects can occur. With BeneFIX, these can include blood clots, or an allergic reaction. You should stop the dose and get medical help right away if you have any unusual changes to your body, like a rash, hives, wheezing, problems breathing, or swelling of the face. Also, stop and get help right away if you feel faint, or have a fast heartbeat, tightness in the chest, or lips that start to turn blue.

It is important to know that your body may form inhibitors to Factor IX. Inhibitors can prevent BeneFIX from working. So, call your doctor right away if your bleeding is not controlled after using this medicine. 

For best results with BeneFIX, plan ahead for refills, talk to your healthcare team before you travel, and read the Patient Information leaflet.