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Click here for IMPORTANT CORRECTION OF DRUG INFORMATION REGARDING ZYFLO CR.

Recently, the Food and Drug Administration’s Division of Drug Marketing, Advertising, and Communications (DDMAC) issued a Warning Letter to Cornerstone Therapeutics Inc. objecting to a product-specific website that promoted Zyflo CR® (zileuton) extended-release tablets. FDA stated that the www.zyflocr.com website was misleading because it omitted all risk information for
Zyflo CR and included a link to outdated prescribing information.

More than half of asthma patients are still burdened with asthma symptoms



Welcome to zyflocr.com, your resource for asthma control with ZYFLO CR®
       
Learn how to get answers to the question: Are asthma symptoms still burdening your everyday life?
   

ZYFLO CR® helps control asthma symptoms


Here’s what you should know about ZYFLO CR®:

*On co-pays up to $70. See savings card for details and instructions. Subject to availability. Restrictions apply.




Important Patient Safety Information


ZYFLO CR® is a medicine used to prevent asthma attacks and for long-term management of asthma in adults and children 12 years of age and older. ZYFLO CR® is not a rescue medicine and should not be used for immediate relief during an asthma attack.

You should not take ZYFLO CR® if you have active liver disease or repeated blood tests showing elevated liver enzymes. Your doctor may do blood tests to check your liver before you take ZYFLO CR® and while you are taking it. You should not take ZYFLO CR® if you have ever had an allergic reaction to ZYFLO CR® or any of its ingredients.

Tell your doctor about all the medicines you take, including prescription and non-prescription medicines. ZYFLO CR® and certain other medicines may affect each other causing side effects. Tell your doctor if you drink alcohol (how much and how often) and if you have ever had liver problems including hepatitis, jaundice (yellow eyes or skin), or dark urine.

In addition, report any changes in your behavior or sleeping habits while taking
ZYFLO CR®.

Some of the most common side effects are nose and throat irritation, sinusitis, upper respiratory infection, throat pain, headache, muscle aches, nausea, and diarrhea.

For additional safety information, please see Patient Product Information.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch, or call 1-800-FDA-1088.