Zyflo (Zileutin) Drug Information: Description, User Reviews, Drug Side Effects, Interactions

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May 21, 2012

Zyflo

Asthma »

Myths, facts, and statistics about asthma

Before we present the typical symptoms of asthma, we should dispel some common myths about this condition. This is best achieved by conducting a short true or false quiz.

T or F - Asthma is "all in the mind."
T or F - You will "grow out of it."
T or F - Asthma can be cured, so it is not serious and nobody dies from it.
T or F - You are likely to develop asthma if someone in your family has it.
T or F - You can "catch" asthma from someone else who has it.
T or F - Moving to a different location, such as the desert, can cure asthma.
T or F - People with asthma should not exercise.
T or F - Asthma is best controlled when one has an asthma management plan designed by your doctor. This should include the medications used for quick relief as well as maintenance therapy.
T or F - Medications used to treat asthma are habit...

Read the Asthma article »

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ZYFLO
(zileuton) Tablet

DRUG DESCRIPTION

Zileuton is an orally active inhibitor of 5-lipoxygenase, the enzyme that catalyzes the formation of leukotrienes from arachidonic acid. Zileuton has the chemical name (±)-1-(1-Benzo[b]thien-2-ylethyl)-1-hydroxyurea and the following chemical structure:

Zileuton

Zileuton has the molecular formula C₁₁H₁₂N₂O₂S and a molecular weight of 236.29. It is a racemic mixture (50:50) of R(+) and S(-) enantiomers. Zileuton is a practically odorless, white, crystalline powder that is soluble in methanol and ethanol, slightly soluble in acetonitrile, and practically insoluble in water and hexane. The melting point ranges from 144.2#C to 145.2#C. ZYFLO (zileutin) tablets for oral administration are supplied in one dosage strength containing 600 mg of zileuton.

Inactive Ingredients: crospovidone, hydroxypropyl cellulose, hypromellose, magnesium stearate, microcrystalline cellulose, pregelatinized starch, propylene glycol, sodium starch glycolate, talc, and titanium dioxide.

What are the precautions when taking zileutin (Zyflo)?

Before taking zileuton, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: active liver disease.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver disease, alcohol use.

This drug may make you dizzy or drowsy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages because alcohol may...

Read All Potential Precautions of Zyflo »

Last reviewed on RxList: 9/10/2009
This monograph has been modified to include the generic and brand name in many instances.