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What happens if I miss a dose (Zyflo CR)?

Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at your next regularly scheduled time. Do not take extra medicine to make up the missed dose.

What happens if I overdose (Zyflo CR)?

Seek emergency medical attention if you think you have used too much of this medicine.

Symptoms of a zileuton overdose are not known.

What should I avoid while taking zileuton (Zyflo CR)?

Avoid situations or activities that may trigger an asthma attack.

Avoid drinking alcohol while taking zileuton. Alcohol may increase your risk of liver damage.

What other drugs will affect zileuton (Zyflo CR)?

Before taking zileuton, tell your doctor if you are taking any of the following drugs:

• a blood thinner such as warfarin (Coumadin);
• theophylline (Theo-Dur, Theolair, Elixophyllin, Slo-Phyllin, others); or
• propranolol (Inderal).

This list is not complete and there may be other drugs that can interact with zileuton. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.

Where can I get more information?

Your pharmacist can provide more information about zileuton.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

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