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Allergies Health Center

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Singulair

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Montelukast (Singulair) is a drug that relieves allergy symptoms and is also used to prevent asthma attacks. It reduces congestion in your nose and also cuts down on sneezing, itching, and eye allergies. For people with allergies and asthma, it helps reduce inflamation in your airways.

It works by stopping the action of a chemical called leukotriene, which causes your nasal passages to swell and make a lot of mucus. The same chemical is also responsible for tightening airways when you have asthma, making it harder to breathe.

Recommended Related to Allergies

Spotting Hidden Allergy Triggers

If you've been living with allergies, you probably know the obvious stuff by now -- don't take in stray cats, don't hang around in dusty attics, don't inhale deeply in smoking lounges. But that might not be enough. There could be hidden allergy triggers and irritants all around you that you don't know about. "Hidden allergens and irritants are a huge problem for people with allergies," says Hugh H. Windom, MD, an associate clinical professor of immunology at the University of South Florida. "The...

Read the Spotting Hidden Allergy Triggers article > >

Singulair is a prescription medication. You take it once a day. It’s the only drug of this type that’s approved for allergies.

Side effects include headache, earache, sore throat, nervousness, nausea, and nasal congestion. Neuropsychiatric events have been reported in adult, adolescent, and pediatric patients taking Singulair.

Ask your doctor before taking Singulair if you’re pregnant or before giving it to a child.

WebMD Medical Reference

Reviewed by Stanley M. Fineman, MD, MBA on October 23, 2014
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