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Arzerra Side Effects

Generic name: ofatumumab

Medically reviewed by Drugs.com. Last updated on Jun 4, 2024.

Note: This document provides detailed information about Arzerra Side Effects associated with ofatumumab. Some dosage forms listed on this page may not apply specifically to the brand name Arzerra.

Applies to ofatumumab: solution.

Important warnings This medicine can cause some serious health issues

Intravenous route (solution)

Hepatitis B Virus (HBV) reactivation can occur in patients receiving CD20-directed cytolytic antibodies, including ofatumumab, in some cases resulting in fulminant hepatitis, hepatic failure, and death.

Progressive Multifocal Leukoencephalopathy (PML) resulting in death can occur in patients receiving CD20-directed cytolytic antibodies, including ofatumumab.

Precautions

It is very important that your doctor check your progress at regular visits to make sure this medicine is working properly and to check for unwanted effects. Blood and urine tests may be needed to check for unwanted effects.

Using this medicine while you are pregnant can harm your unborn baby. Use an effective form of birth control to keep from getting pregnant during treatment and for at least 6 months after the last dose of this medicine. If you think you have become pregnant while using the medicine, tell your doctor right away.

This medicine may cause chest pain, fever, chills, itching, hives, flushing of the face, rash, dizziness, fainting, or lightheadedness, trouble breathing, or swelling of the face, tongue, and throat within a few hours after you receive it. Check with your doctor or nurse right away if you have any of these symptoms.

This medicine may cause a serious type of reaction called tumor lysis syndrome. Your doctor may give you a medicine to help prevent this. Call your doctor right away if you have a decrease or change in urine amount, joint pain, stiffness, or swelling, lower back, side, or stomach pain, a rapid weight gain, swelling of the feet or lower legs, or unusual tiredness or weakness.

Ofatumumab can temporarily lower the number of white blood cells in your blood, increasing the chance of getting an infection. It can also lower the number of platelets, which are necessary for proper blood clotting. If this occurs, there are certain precautions you can take, especially when your blood count is low, to reduce the risk of infection or bleeding:

This medicine may increase your risk of developing a serious and rare brain infection called progressive multifocal leukoencephalopathy (PML). Check with your doctor right away if you have vision changes, loss of coordination, clumsiness, memory loss, difficulty speaking or understanding what others say, and weakness in the legs.

This medicine may cause hepatitis B virus reactivation. Check with your doctor right away if you have any symptoms of liver problems, including yellow skin or eyes, dark brown-colored urine, right-sided stomach pain, fever, or severe tiredness.

Do not have any live vaccines (immunizations) while you are being treated with ofatumumab (the active ingredient contained in Arzerra) injection. You should have completed any needed immunizations at least 4 weeks for live or live-attenuated vaccines and at least 2 weeks for non-live (inactivated) vaccines before starting treatment with this medicine. Check with your doctor before having any vaccines.

Do not take other medicines unless thy have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.

Serious side effects of Arzerra

Along with its needed effects, ofatumumab may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor or nurse immediately if any of the following side effects occur while taking ofatumumab:

More common side effects

  • black, tarry stools
  • bloating or swelling of the face, arms, hands, lower legs, or feet
  • blurred vision
  • body aches or pain
  • chest pain or tightness
  • chills
  • confusion
  • cough producing mucus
  • difficult or labored breathing
  • dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  • ear congestion
  • facial swelling
  • fainting
  • fast heartbeat
  • feeling of warmth
  • headache
  • hives or welts, itching, or skin rash
  • increased sweating
  • lightheadedness
  • loss of voice
  • lower back or side pain
  • nausea or vomiting
  • painful blisters on the trunk of the body
  • painful or difficult urination
  • pale skin
  • rapid, shallow breathing
  • redness of the face, neck, arms, and occasionally, upper chest
  • runny or stuffy nose
  • sneezing
  • sore throat
  • tingling of the hands or feet
  • trouble breathing
  • ulcers, sores, or white spots in the mouth
  • unusual bleeding or bruising
  • unusual tiredness or weakness
  • unusual weight gain or loss
  • bladder pain
  • bloody or cloudy urine
  • body aches or pain
  • chills
  • cough
  • difficult, burning, or painful urination
  • dryness or soreness of throat
  • ear congestion
  • fever
  • flushing, redness of skin
  • frequent urge to urinate
  • hoarseness
  • joint pain
  • loss of voice
  • lower back or side pain
  • muscle aches
  • pain or tenderness around eyes and cheekbones
  • pain, itching, swelling of the skin
  • runny nose
  • sneezing
  • sore throat
  • stuffy or runny nose
  • sweating
  • swollen joints
  • tender, swollen glands in the neck
  • trouble in swallowing
  • unusually warm skin
  • voice changes
  • vomiting

Less common side effects

  • fast, pounding, or irregular heartbeat or pulse
  • nervousness
  • pounding in the ears
  • slow heartbeat

Incidence not known

  • blistering, peeling, or loosening of the skin
  • dark urine
  • diarrhea
  • fluid-filled skin blisters
  • joint or muscle pain
  • light-colored stools
  • no blood pressure or pulse
  • red skin lesions, often with a purple center
  • red, irritated eyes
  • sensitivity to the sun
  • skin thinness
  • stopping of heart
  • unconsciousness
  • yellow eyes or skin

Check with your doctor immediately if any of the following side effects occur while taking ofatumumab:

Other side effects of Arzerra

Some side effects of ofatumumab may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common side effects

  • back pain
  • muscle aches
  • redness of the skin
  • trouble sleeping

Less common side effects

  • bleeding, blistering, burning, coldness, discoloration of the skin, feeling of pressure, hives, infection, inflammation, itching, lumps, numbness, pain, rash, redness, scarring, soreness, stinging, swelling, tenderness, tingling, ulceration, or warmth at the injection site
  • muscle spasms
  • pain or tenderness around the eyes and cheekbones

For healthcare professionals

Applies to ofatumumab: intravenous solution, subcutaneous solution.

Hematologic adverse events

Respiratory

Gastrointestinal

Dermatologic

Musculoskeletal

Psychiatric

Nervous system

Cardiovascular

Genitourinary

Hepatic

Hypersensitivity

Immunologic

Metabolic

Very common (10% or more):

Other

See also:

References

1. Cerner Multum, Inc. "UK Summary of Product Characteristics."

2. Pharmaceutical Society of Australia (2006) APPGuide online. Australian prescription products guide online. http://www.appco.com.au/appguide/default.asp

3. (2009) "Product Information. Arzerra (ofatumumab)." GlaxoSmithKline

Frequently asked questions

Further information

Arzerra side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.