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Benralizumab Side Effects

Medically reviewed by Philip Thornton, DipPharm. Last updated on Jun 18, 2023.

Applies to benralizumab: subcutaneous solution.

Precautions

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

This medicine may cause serious allergic reactions, including anaphylaxis and angioedema. These can be life-threatening and require immediate medical attention. Tell your doctor right away if you have a rash, itching, hoarseness, trouble breathing, trouble swallowing, or any swelling of your hands, face, or mouth after using this medicine.

This medicine will not stop an asthma attack that has already started. Your doctor may prescribe another medicine for you to use in case of an asthma attack.

If you use a corticosteroid medicine (inhaled or taken by mouth) to control your asthma, keep using it unless your doctor tells you otherwise.

Common side effects of benralizumab

Some side effects of benralizumab 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

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
  • body aches or pain
  • congestion
  • dryness or soreness of the throat
  • runny nose
  • tender, swollen glands in the neck
  • voice changes

Serious side effects of benralizumab

Along with its needed effects, benralizumab 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 immediately if any of the following side effects occur while taking benralizumab:

Less common side effects

  • fast heartbeat
  • fever
  • hives, itching, or skin rash
  • hoarseness
  • irritation
  • joint pain, stiffness, or swelling
  • redness of the skin
  • swelling of the eyelids, face, lips, hands, or feet
  • tightness in the chest
  • troubled breathing or swallowing

Incidence not known

  • cough
  • dizziness
  • puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  • unusual tiredness or weakness

For healthcare professionals

Applies to benralizumab: subcutaneous solution.

Hypersensitivity adverse events

Immunologic

Local

Respiratory

Other

Nervous system

Dermatologic

See also:

References

1. (2017) "Product Information. Fasenra (benralizumab)." Astra-Zeneca Pharmaceuticals

Frequently asked questions

Further information

Benralizumab 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.