Zyflo CR (Ziluton)

Each Zyflo CR tablet contains the active ingredient, zileuton. Inactive ingredients include crospovidone, ferric oxide, glyceryl behenate, hydroxypropyl cellulose, hypromellose, magnesium stearate, mannitol, microcrystalline cellulose, povidone, pregelatinized starch, propylene glycol, sodium starch glycolate, and talc.

Before starting Zyflo CR, patients should discuss their allergies and health problems with their doctor. Patients should also inform their doctor of all the medications they take, including prescription, over-the-counter, vitamins, and herbal supplements. In addition, patients should inform their doctor if they are pregnant, plan to become pregnant, breastfeeding, or plan to breastfeed., Zyflo CR can cause elevations in liver function enzymes and bilirubin. Caution should be used in patients who drink alcohol and/or have or have had liver disease., Zyflo CR can cause problems with sleep and changes in behavior. Patients should monitor for these effects.

The most common side effects of Zyflo CR include sinusitis, nausea, and pharyngolaryngeal pain. However, these are not all the side effects that can be caused by taking Zyflo CR. Patients should immediately inform their doctor of any bothersome or persistent side effects that may occur.