Ofatumumab (Injection)

Introduction

Ofatumumab (oh-FAT-oo-moo-mab)

Treats chronic lymphocytic leukemia (CLL).

Brand Name(s)

Arzerra

There may be other brand names for this medicine.

How to Use This Medicine

Injectable

  • Medicines used to treat cancer are very strong and can have many side effects. Before receiving this medicine, make sure you understand all the risks and benefits. It is important for you to work closely with your doctor during your treatment.
  • Your doctor will prescribe your dose and schedule. This medicine is given through a needle placed in a vein.This medicine needs to be given slowly, so the needle will remain in place for at least an hour. You may also receive medicines to help prevent allergic reactions.
  • You will receive this medicine while you are in a hospital or cancer treatment center. A nurse or other trained health professional will give you this medicine.
  • Missed dose:This medicine needs to be given on a fixed schedule. If you miss a dose, call your doctor, home health caregiver, or treatment clinic for instructions.

Drugs and Foods to Avoid

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

  • This medicine may interfere with vaccines. Ask your doctor before you get a flu shot or any other vaccines.

Warnings While Using This Medicine

  • Tell your doctor if you are pregnant or breastfeeding, or if you have liver disease, infection, or a history of hepatitis B.
  • This medicine may cause the following problems:
    • Infusion reactions
    • Tumor lysis syndrome
    • Hepatitis B infection
    • Progressive multifocal leukoencephalopathy (PML)
    • Bowel blockage
  • This medicine may make you bleed, bruise, or get infections more easily. Take precautions to prevent illness and injury. Avoid people who are ill, and wash your hands often. Brush and floss your teeth gently, do not play rough sports, and be careful with sharp objects.
  • Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.

Possible Side Effects While Using This Medicine

Call your doctor right away if you notice any of these side effects:

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
  • Chest pain or trouble breathing
  • Confusion, dizziness, loss of balance, trouble speaking or understanding, vision problems
  • Dark urine or pale stools, nausea, vomiting, loss of appetite, stomach pain, yellow skin or eyes
  • Fever, chills, cough, sore throat, and body aches
  • Ongoing vomiting, severe stomach pain
  • Unusual bleeding, bruising, or weakness
  • Warmth or redness in your face, neck, arms, or upper chest, back pain, dizziness, fainting

If you notice these less serious side effects, talk with your doctor:

  • Pain, itching, burning, swelling, bleeding, or a lump under your skin where the needle is placed

If you notice other side effects that you think are caused by this medicine, tell your doctor

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088

When This Medicine Should Not Be Used

This medicine is not right for everyone. You should not receive this medicine if you had an allergic reaction to ofatumumab.
Review Date: March 4, 2014
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites.
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