Join the 160,000 patients treated with FASENRA*

FASENRA can help patients breathe better.

Not a rescue medicine. Individual results may vary.

*Based on US data from specialty pharmacies and distributors from December 2017 to April 2026 for new patients starting FASENRA.

FASENRA is a biologic treatment specifically designed to treat a different type of asthma called eosinophilic asthma. Approximately 4 out of 5 adults with severe asthma may have eosinophilic asthma. FASENRA is given by injection.

Proven FASENRA Results:

Lung Icon Representing FASENRA Has Proven to Reduce Occurrence of Asthma Attacks by Up To 51%

Reduce occurrence of asthma attacks by up to 51%§

Patients treated with FASENRA experienced 0.74 asthma attacks per year vs 1.52 for patients on placebo.§

Icon Representing FASENRA Has Proven to Improve Lung Function to Breathe Better

Improve lung function so you can breathe better

Icon Representing FASENRA Has Been Proven to Lower Use of Daily Oral Steroids By 75%

Lower use of daily oral steroids by 75%||

Versus 25% of patients in the control group||

Do not stop or change your corticosteroid medicines unless instructed by your healthcare provider.

A registry study considered ~84% of severe asthma patients most likely to have eosinophilic asthma based on several factors, including increased blood eosinophils levels (≥150 cells/μL).

Based on clinical study results

§In a 48-week clinical trial program of FASENRA vs placebo + existing medicines. In a 56-week clinical trial, FASENRA reduced the occurrence of severe asthma attacks by 28% compared with placebo + existing medicines (patients treated with FASENRA experienced 0.73 asthma attacks per year vs 1.01 for patients on placebo).

||Median reductions in a 28-week clinical trial of FASENRA vs placebo + steroid + existing medicines.

See how FASENRA helped real people living with eosinophilic asthma.

Meet Real FASENRA Patients

See how FASENRA works

The mechanism of action of FASENRA in asthma is not fully understood.

FASENRA offers an 8-week dosing schedule and convenient administration options

FASENRA is

ONE DOSE

EVERY 8 WEEKS*

*After 3 starter doses, given on day 1, week 4, and week 8.

Dosing Calendar Icon

Administration options include:

Doctor Icon

At Your Doctor’s Office

Your healthcare provider can administer FASENRA at their office.

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At Home

If your healthcare provider decides that you or a caregiver can administer FASENRA, training should be received on how to properly prepare and give the injection.

Ask your doctor if FASENRA might be right for you

Are you still experiencing asthma symptoms on your current medications? Do you find yourself reaching for your rescue inhaler more than twice a week? Are you taking oral steroids daily to help manage your asthma? If you are, it could be a sign that you have eosinophilic asthma, a severe type of asthma, FASENRA is specifically approved to treat.

If your asthma symptoms are getting in the way, you may want to speak with a specialist—such as an allergist or pulmonologist—about your symptoms.

It’s important to talk to your doctor about your asthma symptoms and how they may be impacting you. Be sure to ask if eosinophils could be a cause of your asthma.

Get some helpful questions to ask your doctor.

Ask Your Doctor About Asthma Guide

frequently asked questions

The FASENRA prefilled syringe is an injection administered under the skin (subcutaneously) by a healthcare provider. The FASENRA Pen is an injection administered under the skin (subcutaneously) by the patient or their caregiver.

Do not try to inject the FASENRA Pen until you have been trained by your healthcare provider.

FASENRA is a maintenance medicine and should be added to current treatments.

Many factors determine how much you will pay for FASENRA. You could pay as little as $0. The FASENRA Savings Program is for commercially insured patients to cover patient out-of-pocket costs for FASENRA and its administration, up to $13,000 per calendar year.

If you need help paying for FASENRA, AstraZeneca may be able to help. You can get more information on FASENRA affordability programs by calling 1-833-360-HELP (4357).

IMPORTANT SAFETY INFORMATION

Do not use FASENRA if you are allergic to benralizumab or any of the ingredients in FASENRA. Do not use to treat sudden breathing problems.

 

FASENRA may cause serious side effects, including:

  • allergic (hypersensitivity) reactions, including anaphylaxis. Serious allergic reactions can happen after you get your FASENRA injection. Allergic reactions can sometimes happen hours or days after you get your injection. Tell your healthcare provider or get emergency help right away if you have any of the following symptoms of an allergic reaction:
    • swelling of your face, mouth and tongue
    • breathing problems
    • fainting, dizziness, feeling lightheaded (low blood pressure)
    • rash
    • hives

Before using FASENRA, tell your healthcare provider about all of your medical conditions, including if you:

  • are taking oral or inhaled corticosteroid medicines. Do not stop taking your corticosteroid medicines unless instructed by your healthcare provider. This may cause other symptoms that were controlled by the corticosteroid medicine to come back
  • have a parasitic (helminth) infection
  • are pregnant or plan to become pregnant. It is not known if FASENRA will harm your unborn baby. Tell your healthcare provider if you become pregnant during your treatment with FASENRA
  • are breastfeeding or plan to breastfeed. It is not known if FASENRA passes into your breast milk. Talk to your healthcare provider about the best way to feed your baby if you use FASENRA
  • are taking prescription and over-the-counter medicines, vitamins, or herbal supplements.

Do not stop taking your other medicines unless instructed to do so by your healthcare provider. Tell your healthcare provider if your condition does not get better or if it gets worse after you start treatment with FASENRA.

The most common side effects of FASENRA:

  • adults and children 6 years and older with asthma include headache and sore throat
  • adults with EGPA include headache
  • adults and children 12 years and older with HES include headache, allergic reactions, and flu-like symptoms

These are not all the possible side effects of FASENRA.

APPROVED USE

FASENRA is a prescription medicine used:

  • with other asthma medicines for the maintenance treatment of asthma in adults and children 6 years and older whose asthma is not controlled with their current asthma medicines. FASENRA is not used to treat sudden breathing problems.
  • to treat adults with eosinophilic granulomatosis with polyangiitis (EGPA).
  • to treat adults and children 12 years and older with hypereosinophilic syndrome (HES).