Zileuton CR for Asthma
Available by prescription only, zileuton CR (Zyflo CR™) is a drug used to prevent asthma attacks. It is approved for use in adults and children as young as 12 years old.
Zileuton CR is known as a "controller" medication. This means that although it can help prevent asthma attacks, zileuton CR should not be used to treat an attack after it starts. Everyone who takes this drug for asthma should also have a rescue medication (such as an albuterol inhaler) available for emergencies.
(Click What Is Zileuton CR Used For? for more details on this asthma medication. This article explains how it works and describes an "off-label" use of this product.)