Montelukast

Leukotriene Receptor Antagonist
Drug Class
Leukotriene Receptor Antagonist
Mechanism of Action (MOA)
Blocks the CysLT1 leukotriene receptor → ↓ bronchoconstriction and inflammation.
Black Box Warning
Serious neuropsychiatric events (agitation, depression, suicidal thinking and behavior).
Clinical Notes
Add-on for asthma and exercise-induced bronchospasm; in allergic rhinitis, second-line only. Oral, once daily.
Source
FDA label

Sources

Reviewed September 2026
  1. FDA label — FDA / DailyMed

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Used for

Same family

Asthma & COPD drugs · 5 drugs

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