How do I take ZYFLO CR®?


ZYFLO CR® should be taken as follows:
  • Two (2) 600-mg tablets twice a day
  • Within 1 hour after your morning and evening meals
  • Swallow ZYFLO CR® whole. Do not chew, cut, or crush ZYFLO CR® tablets. Tell your health care provider if you cannot swallow the tablets whole



How to take Zyflo CR
ZYFLO CR® on Facebook cornerstone
If a dose is missed, take the next dose at the scheduled time. Do not double the dose. If you take too much ZYFLO CR®, call your health care provider or a Poison Control Center right away.

Do not take ZYFLO CR® if you have active liver disease or repeated blood tests showing elevated liver enzymes (substances released by the liver), or if you have ever had an allergic reaction to ZYFLO CR® or any of the ingredients in ZYFLO CR®.

Stay with ZYFLO CR® for continued symptom relief


ZYFLO CR® works uniquely to provide continued relief from your asthma symptoms. ZYFLO CR® helps stop the production of leukotrienes. Leukotrienes are chemicals that may contribute to your asthma. After you begin taking ZYFLO CR®, it is important that you take it as directed every day to help keep your asthma symptoms under control.

Once your doctor decides you should remain on ZYFLO CR®, do not decrease the dose or stop taking ZYFLO CR®, unless directed by your doctor. Changing or stopping your medications without your doctor’s direction may result in your symptoms getting worse. Keep taking your other asthma medicines as directed while taking
ZYFLO CR®. It is a good idea to keep a list of your medicines and show it to your health care provider and pharmacist when you get a new medicine.

Taking ZYFLO CR® as directed every day is important to help control your asthma over time. ZYFLO CR® is not a rescue medicine and should not be used if you need relief right away for an asthma attack. However, you can continue taking your regularly scheduled dose of ZYFLO CR® during an asthma attack.

*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.