IMPORTANT: HOW TO USE THIS INFORMATION: This is a summary and does NOT have all possible information about this product. This information does not assure that this product is safe, effective, or appropriate for you. This information is not individual medical advice and does not substitute for the advice of your health care professional. Always ask your health care professional for complete information about this product and your specific health needs.

OFATUMUMAB - INJECTION

(oh-fuh-TOO-muh-mab)

COMMON BRAND NAME(S): Arzerra

USES: Ofatumumab is used to treat a certain type of leukemia (CLL - chronic lymphocytic leukemia) in patients who have not responded to other cancer chemotherapy drugs (such as fludarabine, alemtuzumab). Ofatumumab belongs to a class of drugs known as monoclonal antibodies. This medication works by stopping the growth of cancer cells.

HOW TO USE: This medication is given by injection into a vein by a health care professional. It is usually given once a week for the first 8 doses, then once every 4 weeks for the last 4 doses or as directed by your doctor.

The dosage is based on your medical condition and response to treatment. To prevent side effects, your doctor may prescribe other medications before each treatment, including acetaminophen, an antihistamine (such as diphenhydramine), and a corticosteroid (such as methylprednisolone).

This medication may cause very serious (rarely fatal) infusion-related reactions during or up to 24 hours after treatment. These reactions occur more often during the first and second treatments. Your doctor will monitor you closely and increase your dose slowly to reduce the chances of these serious side effects. If you have a reaction, your treatment will be temporarily stopped. Tell your doctor or nurse immediately if any of these effects occur: chest pain, flushing, wheezing, trouble breathing, dizziness, fainting, pounding/irregular heartbeat, fever, chills, back/stomach pain, or rash/itching.