Zafirlukast

Asthma, Chronic Urticaria

Treatment

2 FDA approvals

20 Active Studies for Zafirlukast

What is Zafirlukast

Zafirlukast

The Generic name of this drug

Treatment Summary

Zafirlukast is a medication used to treat asthma. It comes in the form of tablets and should be taken twice daily. Zafirlukast works by blocking the action of cysteinyl leukotrienes, which can cause airway constriction, mucus buildup and inflammation in the lungs. This drug is often used in combination with an inhaled steroid and/or a long-acting bronchodilator. Montelukast (Singulair) is another type of leukotriene receptor antagonist that must only be taken once a day.

Accolate

is the brand name

image of different drug pills on a surface

Zafirlukast Overview & Background

Brand Name

Generic Name

First FDA Approval

How many FDA approvals?

Accolate

Zafirlukast

1996

32

Approved as Treatment by the FDA

Zafirlukast, commonly known as Accolate, is approved by the FDA for 2 uses like Asthma and Asthma .

Asthma

Helps manage Asthma

Asthma

Helps manage Asthma

Effectiveness

How Zafirlukast Affects Patients

Zafirlukast is a drug used to prevent and treat asthma. It works by blocking the actions of leukotrienes, which are compounds that can cause airway constriction in people with asthma. This drug has been shown to inhibit the contractile activity of three different leukotrienes in laboratory animals and humans, as well as reduce the swelling and influx of eosinophils caused by leukotrienes in animal lungs.

How Zafirlukast works in the body

Zafirlukast blocks the body's response to two types of leukotriene, which are involved in the process of asthma. Leukotrienes increase airway swelling, muscle tightening, and inflammation, which all contribute to the symptoms of asthma. By blocking these leukotrienes, Zafirlukast helps reduce the severity of asthma symptoms.

When to interrupt dosage

The measure of Zafirlukast is determined by the diagnosed state. The amount of dosage fluctuates in accordance with the technique of delivery (e.g. Tablet, film coated or Tablet) featured in the table beneath.

Condition

Dosage

Administration

Asthma

, 10.0 mg, 20.0 mg

Tablet, film coated, Tablet, film coated - Oral, , Oral, Tablet, coated - Oral, Tablet, coated, Tablet - Oral, Tablet

Chronic Urticaria

, 10.0 mg, 20.0 mg

Tablet, film coated, Tablet, film coated - Oral, , Oral, Tablet, coated - Oral, Tablet, coated, Tablet - Oral, Tablet

Warnings

Zafirlukast Contraindications

Condition

Risk Level

Notes

Cirrhosis

Do Not Combine

Liver Disease

Do Not Combine

There are 20 known major drug interactions with Zafirlukast.

Common Zafirlukast Drug Interactions

Drug Name

Risk Level

Description

Abemaciclib

Major

The metabolism of Abemaciclib can be decreased when combined with Zafirlukast.

Acalabrutinib

Major

The metabolism of Acalabrutinib can be decreased when combined with Zafirlukast.

Albendazole

Major

The metabolism of Albendazole can be decreased when combined with Zafirlukast.

Alectinib

Major

The metabolism of Alectinib can be decreased when combined with Zafirlukast.

Amiodarone

Major

The metabolism of Amiodarone can be decreased when combined with Zafirlukast.

Zafirlukast Toxicity & Overdose Risk

Possible side effects of this drug include rash and stomach discomfort.

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Zafirlukast Novel Uses: Which Conditions Have a Clinical Trial Featuring Zafirlukast?

160 active studies are assessing the potential of Zafirlukast to ameliorate Chronic Urticaria.

Condition

Clinical Trials

Trial Phases

Chronic Urticaria

0 Actively Recruiting

Asthma

87 Actively Recruiting

Phase 1, Phase 4, Early Phase 1, Not Applicable, Phase 2, Phase 3

Zafirlukast Reviews: What are patients saying about Zafirlukast?

5

Patient Review

4/3/2013

Zafirlukast for Chronic Obstructive Asthma

This drug is essential for my well-being. I have been taking it regularly for at least fifteen years, and if I forget to take it even for a day, I struggle to breathe.

5

Patient Review

3/7/2013

Zafirlukast for Asthma Prevention

I made the switch to this medication from Singulair, and I'm really happy that I did. Not only has it been effective, but it's also much cheaper.

5

Patient Review

5/31/2018

Zafirlukast for Asthma

Before I started this treatment, I was constantly wheezing and coughing. It didn't matter if I was sitting, standing, or lying down; I couldn't get a break. And forget about trying to sleep through the night! But since starting this medication, it's like those problems never existed.

5

Patient Review

7/21/2018

Zafirlukast for Asthma

Accolate has been much more effective for me than Singulair, especially in terms of my asthma and sinus polyps. I have AERD, so this is a big deal for me.

4.7

Patient Review

7/1/2013

Zafirlukast for Asthma

I completely agree that this treatment has been a miracle for me. I did have some short-term side effects, but they were nothing compared to how much it's helped me overall. I've been taking it since 2009 and it's allowed me to lead a normal life again. I hardly even notice my breathing now, so when there are problems I can identify them quickly and take care of them. Sleeping better at night has also helped reduce my fatigue during the day.

2.7

Patient Review

3/29/2018

Zafirlukast for Chronic Obstructive Asthma

One of the unfortunate side-effects I experienced was hair loss.

1

Patient Review

2/29/2012

Zafirlukast for Chronic Obstructive Asthma

Unfortunately, this medication caused my tongue to swell and I developed a rash. Since I have severe allergies, I can't take this medication anymore.

1

Patient Review

5/24/2012

Zafirlukast for Asthma

I started taking this medication and immediately began to experience moderate itching. I don't think I'll continue using it.
image of drug pills surrounding a glass of water symbolizing drug consumption

Patient Q&A Section about zafirlukast

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

What are side effects of zafirlukast?

"One may experience nausea, diarrhea, or stomach pain as a result of taking ibuprofen. A headache may also develop. Some people may experience cold symptoms such as a stuffy nose, sneezing, or a sore throat."

Answered by AI

What is the drug zafirlukast used for?

"Zafirlukast prevents asthma attacks from occurring. It cannot be used to relieve an attack that has already started. If you have an asthma attack that has already started, you should use an inhaled medicine that works quickly for relief."

Answered by AI

Why was zafirlukast discontinued?

"Zafirlukast, a leukotriene receptor antagonist, is being discontinued for commercial reasons. The closest available alternative is montelukast. Clinicians should be aware of this product being discontinued."

Answered by AI

Clinical Trials for Zafirlukast

Have you considered Zafirlukast clinical trials?

We made a collection of clinical trials featuring Zafirlukast, we think they might fit your search criteria.
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Image of Allergy Immunology Associates in Mayfield Heights, United States.

Osteopathic Manipulative Treatment for Asthma

18 - 60
All Sexes
Mayfield Heights, OH

Asthma is a common respiratory condition that can be difficult to control despite the use of medications such as inhalers, oral steroids or even injectable medications. Osteopathic Manipulative Treatment (OMT) is a hands-on technique used to improve the chest structure and function and may help in improving breathing. Previous research showed that OMT in asthma patients, can improve the movement of the ribs and improve the "peak flow" which is the maximum rate at which a person can exhale air after taking a deep breath. However, no studies have evaluated the impact of OMT on lung inflammation. This single-site research study at University Hospitals aims to evaluate whether Osteopathic Manipulative Treatment (OMT) can reduce lung inflammation and improve breathing and lung function in adult patients with asthma. The lung function will be evaluated by Spirometry which is a test that measures how much air you can breathe in and out of your lungs, as well as how quickly and easily you can exhale air. The lung inflammation will be measured using a device that can detect how much you are breathing out Nitric Oxide which is a gas produced by inflamed cells in the lungs, this test is called: Fractional exhaled Nitric Oxide or FeNO. Approximately 100 participants will be enrolled.

Waitlist Available
Has No Placebo

Allergy Immunology Associates

Nancy Wasserbauer-Kingston, DO

Image of DARTNet Institute in Aurora, United States.

Inhaled Corticosteroids + Azithromycin for Asthma

13 - 75
All Sexes
Aurora, CO

While asthma therapy is becoming more individualized based on asthma phenotypes, more research is needed to tailor newer therapies to individuals. Inhaled corticosteroid (ICS) medications are the foundation of care for all individuals with persistent asthma. But ICS use is not without possible long term side effects. This study will compare two currently available approaches to reduce AEX in primary care patients: (1) use of inhaled corticosteroids (ICS) as part of rescue therapy, also known as MART (Maintenance And Reliever Therapy) or PARTICS (Patient Activated Reliever Trigger Inhaled Corticosteriods) therapy - either of these therapies will be called Rescue-Inhaled Corticosteroids or R-ICS pronounced "Ricks," and (2) use of azithromycin (AZ) as a preventive therapy. These treatments will be studied both individually and in combination.

Phase 4
Recruiting

DARTNet Institute (+12 Sites)

Wilson D Pace, MD, FAAFP

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Salbutamol for Athletic Performance

18 - 55
All Sexes
Vancouver, Canada

β2-Agonists, commonly used to treat asthma, have also been used by athletes to enhance performance, leading to their ban by the International Olympic Committee in 1972. Research has shown non-asthmatics receive no benefit from these drugs at therapeutic dosages; however, many elite athletes still use them, and asthmatic athletes often win more Olympic medals. In some non-asthmatics, β2-agonists may improve breathing limitations during high intensity exercise, which may improve performance. Therefore, we aim to examine if there is a select group of non-asthmatic individuals who experience breathing limitations that may receive benefit from β2-agonists.

Waitlist Available
Paid Trial

St. Paul's Hospital

Jordan A Guenette, PhD

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PF-07275315 for Asthma

18 - 70
All Sexes
Mobile, AL

The purpose of this clinical trial is to learn about the safety and effects of the study medicine (called PF-07275315) for the potential treatment of moderate-to-severe asthma. Asthma is a condition that makes it challenging to breathe, which negatively impacts the quality of life and functioning of people who are affected. This study is seeking participants who: * Are 18 to 70 years old * Have had moderate-to-severe asthma for at least 12 months that is not well controlled * Have been taking their regular maintenance treatment(s) for asthma over the last 12 months All participants will receive PF-07275315 or a placebo. A placebo does not have any medicine in it but looks just like the medicine being studied. PF-07275315 or placebo will be given as multiple shots in the clinic over the course of 12 weeks. We will compare the experiences of people receiving PF-07275315 to those of the people who do not. This will help us determine if PF-07275315 is safe and effective. Participants will be involved in this study for about 9.5 months. During this time, they will have 10 visits at the study clinic.

Phase 2
Recruiting

Velocity Clinical Research, Mobile (+10 Sites)

Pfizer CT.gov Call Center

Pfizer

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Corticosteroids for Asthma

18+
All Sexes
Hamilton, Canada

Most individuals with asthma can effectively manage their symptoms and maintain normal lung function using inhaled medications, unfortunately, there is a subset of asthma sufferers whose symptoms, lung function, and risk of asthma attacks remain unimproved despite conventional inhaled medications. There could be several reasons for this. One possibility is that inhaled medications fail to reach the intended areas within the lungs, due to structural abnormalities within the airways themselves. Much like road conditions or closures can impede the speed and efficiency of vehicle travel, factors such as airway narrowing or mucus blockages, which are common in asthma, can obstruct the passage of inhaled medications through the airways. Our team has now optimized advanced medical imaging techniques, including magnetic resonance imaging (MRI) and computed tomography (CT), required to investigate this. This study will use these imaging methods to visually assess and measure individual patients' airways and determine whether abnormal airway structures impact how well they respond to inhaled and orally delivered medications. We anticipate finding that abnormal airway structures make inhaled medications less effective, but that they do not affect the response to oral medications.

Phase 4
Recruiting

St. Joseph's Healthcare Hamilton (+1 Sites)

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