Here are some key things you’ll want to know about e-asthma—eosinophilic asthma

Nearly 7 out of 10 adults with asthma could have e-asthma*

*2005-2006 CDC survey of 310 adults who said they had asthma and had eosinophil counts of 150 cells/μL or more.

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A simple blood test can help determine if you have e-asthma

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Talk to your doctor about how to manage e-asthma

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Are a normal part of the body's immune system; eosinophils are a type of white blood cell. In people with asthma, they can contribute to inflammation in the lungs. Your e-number is the number of eosinophils in your blood. A high e-number can be associated with poor asthma control and more asthma attacks.

Artboard 1 copymore harm to the lungssevere asthma attacksinflamed airways

Take a look. This is how your lungs can react with e-asthma

This informational video can tell you how too many eosinophils can affect your asthma.

Airway inflammation


Up to 50% of people with severe asthma have high eosinophils Up to 50% of people with severe asthma have high eosinophils

Nearly 7      out of 10          adults with asthma may have an elevated eosinophil number*

It may be e-asthma if you:

  • Often use your rescue inhaler to control asthma symptoms
  • Wake up at night due to asthma symptoms
  • Take oral steroids like prednisone for your asthma
  • Have had asthma attacks that required emergency care

*2005-2006 CDC survey of 310 adults who said they had asthma and had eosinophil counts of 150 cells/μL or more.

*2005-2006 CDC survey of 310 adults who said they had asthma and had eosinophil counts of 150 cells/μL or more.

Finding out if your asthma is e-asthma may be easier than you think.

A simple blood test could help determine if you have eosinophilic asthma. Get your free test and talk to your doctor.

check your e-number check your e-number

These asthma specialists can be of assistance

Allergists and pulmonologists specialize in respiratory conditions. They can help you better understand e-asthma and how to manage it.

Find a specialist near you!

Always talk to your doctor if you need medical advice. This information is not a substitute for information you can get from your plan about preferred doctors.

To find a doctor, enter your ZIP code. The list of doctors is selected from a nationwide, public database of doctors who have indicated their specialties. This list may not show all the asthma specialists in your area, and it may not have the latest provider information, even though every attempt is made to update the database regularly.

Inclusion in this list does not imply a referral, endorsement, or recommendation by AstraZeneca, nor does it imply a doctor’s endorsement of AstraZeneca or any of its products. When choosing a doctor, verify their acceptance of your health insurance—participation in health networks varies by physician.

Any information you provide is used only to help you find a physician, and will never be shared with third parties. You are responsible for any communications with doctors obtained through this website, and information you share with your doctor is not covered by our Legal Notice or Privacy Notice. You are also bound by laws in your state and federal laws that regulate physician referrals, including, but not limited to, anti-kickback laws, the Stark Law, or state professional practice restrictions.

Additional Resources

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Create a Lungprint to help understand your asthma

Answer a few questions that can help you and your doctor understand your individual asthma experience

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Get a helpful discussion guide here

Information about a possible source of your asthma is just a download away. Download your discussion guide.

There are different ways to help treat e-asthma

Medication options include:

Targeted medications

  • Injections or infusions designed to help manage specific types of asthma
  • Target a source of airway inflammation

Controller or maintenance medications

  • Include inhaled and oral options taken daily to control asthma, even when there are no symptoms
  • Help reduce inflammation in the walls of the airways and may also work to relax the muscles in the airway wall, helping keep them open

Rescue or quick-relief medications

  • Inhaled medicine taken as needed for short-term relief of symptoms
  • Used to prevent or treat asthma attacks
  • Open the lungs by relaxing the muscles of the airway wall
  • Can begin working within minutes and can be effective for 4 to 6 hours

Oral steroids

  • Prednisone is one example, and can be used to prevent asthma symptoms or treat severe asthma flare-ups

Find out if you may have e-asthma.
Start with a free blood test today.


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