Leukotriene receptor antagonistGeneric available
Montelukast
Sold as Singulair
Montelukast prevents asthma attacks and treats allergic rhinitis. Carries an FDA boxed warning for serious neuropsychiatric events.
Compare prices →~$7.00 / mo (generic, NADAC)
What it treats
Asthma maintenance, exercise-induced bronchoconstriction, allergic rhinitis.
Typical dosing
Adults: 10 mg once daily in the evening.
Side effects
Headache, GI upset. Boxed warning: agitation, depression, suicidal thoughts — stop and call prescriber if these occur.
Interactions to know
Few significant interactions.
Pregnancy & breastfeeding
Risk-benefit discussion.
Clinical content reviewed by the BetterBuyRx clinical team.
Educational only. Not medical advice. Always confirm with your prescriber or pharmacist.