Health Guide
Drug Guide

Zileuton (By mouth)

Zileuton (zye-LOO-ton)

Helps prevent and control asthma attacks. Zileuton immediate-release tablets (Zyflo®) were withdrawn from the U. S. market on February 12, 2008. Zyflo CR® is still available.

Brand Name(s):

Zyflo, Zyflo CR

There may be other brand names for this medicine.

When This Medicine Should Not Be Used:

You should not use this medicine if you have had an allergic reaction to zileuton, or if you have liver disease.

How to Use This Medicine:

Long Acting Tablet, Tablet

If a dose is missed:

How to Store and Dispose of This Medicine:

Drugs and Foods to Avoid:

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

Warnings While Using This Medicine:

Possible Side Effects While Using This Medicine:

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

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

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

Last Updated: 12/12/2016

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