Information about Zafirlukast

Zafirlukast Uses

Zafirlukast is used to prevent asthma.

How Zafirlukast works

Zafirlukast works by blocking the action of leukotriene. It lowers inflammation in the airways and nose to prevent asthma.

Common side effects of Zafirlukast

Headache, Infection, Nausea, Diarrhea, Generalized pain
Written By
PhD (Pharmacology), PGDPRA
Reviewed By
MD (Pharmacology), MBBS
Last updated
02 Jan 2023 | 12:58 PM (UTC)

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Available Medicine for Zafirlukast

ZuvairDr Reddy's Laboratories Ltd
40 to ₹602 variant(s)

Expert advice for Zafirlukast

  • You have been prescribed Zafirlukast for asthma prevention and for the treatment of allergy symptoms such as sneezing and runny nose.
  • Take it on an empty stomach at least 1 hour before or 2 hours after meals.
  • It is a relatively safe medicine with very few side effects.
  • Take Zafirlukast 2 hours before exercising if you have exercise-induced asthma.
  • It does not work right away and should not be used to relieve sudden breathing problems. Use your rescue inhaler to control sudden difficulty in breathing.
  • Do not discontinue use without consulting your doctor, even if you feel better.

Frequently asked questions for Zafirlukast


Q. Is zafirlukast an antihistamine or a steroid or a blood thinner?

Zafirlukast is leukotriene receptor antagonist used to relieve difficulty in breathing during asthma

Q. Does Singulair contain Zafirlukast?

No. Singulair is proprietary (brand) name for montelukast drug, a leukotriene receptor blocker similar to Zafirlukast

Q. Is Zafirlukast gluten free?

Yes. Zafirlukast is gluten free. However, please refer to package insert of the prescribed brand before use

Q. Does Zafirlukast cause weight gain?

Zafirlukast has not been reported to cause weight gain.


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