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Zileuton

Generic name: zileuton

Brand names: Zyflo, Zyflo CR

Used for Asthma
Last updated November 5, 2026 0 views
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What is zileuton?

Zileuton is used to stop asthma assaults and for long-term monitoring of asthma in grownups and kids a minimum of 12 years old.

Zileuton might likewise be made use of for purposes not detailed in this medicine guide.

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How should I take zileuton?

Adhere to all directions on your prescription label and review all medication overviews or instruction sheets. Make use of the medication exactly as directed.

Zileuton tablet computers are generally taken 4 times a day at the same times each day, with or without food. If you can not ingest a tablet whole, divided it in half and take one half at a time.

Zileuton extended-release tablets are generally taken two times daily, within 1 hour after your morning and night meals.

Ingest the extended-release tablet whole and do not squash, chew, or break it.

Your symptoms might not improve for a number of days or a couple of weeks. Keep making use of zileuton even after you have no signs (a sign that the medicine is working).

Zileuton is not a fast-acting rescue medicine for asthma attacks. Look for clinical focus if your breathing troubles worsen promptly, or if you believe your medicines are not functioning.

Do not change your dose or quit making use of asthma medication without your doctor's guidance.

You will need frequent blood tests to examine your liver feature.

Store at space temperature away from moisture, heat, and light.

This section was rewritten for readability and reviewed for meaning.

Warnings

Zileuton is not a fast-acting rescue medicine for asthma attacks. Seek medical interest if your breathing issues worsen rapidly, or if you think your drugs are not functioning.

Call your physician today if you have any kind of changes in actions or sleep problems.

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Before taking this medicine

You need to not utilize zileuton if you are allergic to it, or if you have:

  • liver disease; or
  • extremely high liver enzymes on a blood examination.

Inform your doctor if you have ever had:

  • liver issues, dark pee, or jaundice (yellow eyes or skin); or
  • if you drink large quantities of alcohol.

Tell your doctor if you are pregnant or breastfeeding.

If you are expecting, your name might be provided on a pregnancy computer registry to track the impacts of zileuton on the baby.

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Zileuton side effects

Obtain emergency situation clinical assistance if you have signs of an allergy: hives; challenging breathing; swelling of your face, lips, tongue, or throat.

Zileuton might cause severe negative effects. Call your medical professional simultaneously if you have:

  • intensifying asthma signs and symptoms;
  • sleep problems;
  • adjustments in behavior or rest problems; or
  • liver troubles-- nausea or vomiting, belly pain (upper best side), tiredness, itching, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes).

Common adverse effects of zileuton may consist of:

  • indigestion, looseness of the bowels, queasiness, or belly pain;
  • muscular tissue pains;
  • frustration; or
  • dripping or stuffy nose, sinus pain, sneezing, sore throat.

This is not a complete list of adverse effects and others may happen. Call your medical professional for clinical recommendations about negative effects. You may report side effects to FDA at 1-800-FDA-1088.

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Zileuton dosing information

Usual Adult Dose for Asthma -- Maintenance:

Immediate Release:-600 mg orally four times a day-Maximum daily dose: 2400 mgExtended Release:-1200 mg orally twice a day, within one hour after morning and evening meals-Maximum daily dose: 2400 mgComments:-Immediate release tablets may be taken with meals and at bedtime.-Assess hepatic function enzymes prior to initiating this drug and periodically during treatment.Use: Prophylaxis and chronic treatment of asthma

Usual Pediatric Dose for Asthma -- Maintenance:

Less than 12 years: Not recommended.12 years or older:-Immediate Release: 600 mg orally four times a day-Extended Release: 1200 mg orally twice a day, within one hour after morning and evening meals-Maximum daily dose: 2400 mgComments:-Immediate release tablets may be taken with meals and at bedtime.-Assess hepatic function enzymes prior to initiating this drug and periodically during treatment.Use: Prophylaxis and chronic treatment of asthma

What happens if I miss a dose?

Skip the missed dose and take your next dose at the routine time. Do not take 2 doses at once.

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What happens if I overdose?

Look for emergency situation medical focus or call the Poisonous substance Help line at 1-800-222-1222.

Avoid drinking alcohol. It might enhance your risk of liver damages.

This section was rewritten for readability and reviewed for meaning.

What other drugs will affect zileuton?

When you begin or stop taking zileuton, your doctor might need to adjust the dosages of other medicines you utilize on a regular basis, particularly:

  • propranolol;
  • theophylline; or
  • warfarin, Coumadin, Jantoven.

This checklist is not total. Other medications might impact zileuton, including prescription and over the counter medications, vitamins, and natural items. Not all feasible drug interactions are detailed below.

This section was rewritten for readability and reviewed for meaning.

Related medicines

Before you take this medicine: the information on this page is general and may not cover your personal circumstances. Read the label supplied with your medicine and ask a pharmacist or doctor if you are unsure, especially if you are pregnant, breastfeeding, taking other medicines or managing a long-term condition.
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Content is provided for education and is not medical advice. See our medical disclaimer.