zafirlukast (Zafirlukast) (Tablet) 20 mg/1

Zafirlukast 20 mg tablets are a leukotriene receptor antagonist used to manage asthma symptoms. This oral medication helps reduce inflammation in the airways for better breathing. A non-prescription option for long-term asthma control. Suitable for adults and children over 12.

Strength

20 mg/1

Manufacturer / TM Owner

Major Pharmaceuticals

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Pack/s

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Indications & Clinical Uses

Zafirlukast 20 mg tablets are commonly used to prevent and control asthma symptoms such as wheezing and shortness of breath. It works by blocking leukotrienes, substances in the body that cause swelling and tightening of the airways. This medication is often prescribed for long-term asthma management rather than quick relief during an attack. It may also be used to prevent exercise-induced bronchoconstriction.

Side Effects

Zafirlukast 20 mg tablets may help reduce the frequency and severity of asthma symptoms over time. Users often report improved breathing and fewer nighttime awakenings due to asthma. Some individuals notice a gradual reduction in the need for rescue inhalers. Effects can vary, and consistent daily use is typically required for best results.

Precautions & Warnings

Zafirlukast 20 mg tablets should be taken exactly as directed, usually twice daily on an empty stomach. Store tablets in a cool, dry place away from moisture and heat. Keep out of reach of children and pets. Avoid crushing or splitting tablets unless directed by a healthcare provider. Report any unusual changes in mood or behavior to a medical professional.

Avoid Interactions

Zafirlukast may interact with certain medications, including blood thinners like warfarin and some antifungal drugs. Avoid alcohol while taking this medication, as it may increase the risk of side effects. Inform your healthcare provider about all prescription, over-the-counter, and herbal products you are using. CYP inhibitors may affect how zafirlukast is processed in the body.

Frequently Asked Questions

Zafirlukast 20 mg is used to prevent and control asthma symptoms by reducing inflammation in the airways.

Take zafirlukast 20 mg tablets exactly as prescribed, usually twice daily on an empty stomach.

Common side effects may include headache, nausea, or dizziness. Consult a healthcare provider if symptoms persist.

Zafirlukast 20 mg is approved for adults and children over 12 years of age. Dosage for younger children may differ.

Yes, zafirlukast may interact with blood thinners, antifungals, and other drugs. Always inform your doctor about all medications you take.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated: 29 Jul 2026

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