Your Side Effects May IncludeSingulair side effects
montelukast
This side effect is printed on the FDA label for Singulair. It was a question in our daily quiz, where you pick the real side effect from four choices.
Stuttering
An allergy pill with a boxed warning about mood and behavior. Stuttering made the list too.
“disturbance in attention, dream abnormalities, dysphemia (stuttering), hallucinations, insomnia, irritability, memory impairment”
Watch for changes in mood, sleep or behavior, in children too, and call the doctor if you see them.
214 reports to the FDA's adverse event system mention stuttering. A report is not proof the drug caused it. See the query
From quiz No. 2 · September 26, 2026 · Play that quiz →
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Not medical advice. Don't stop or start a medication because of a quiz. Talk to your doctor or pharmacist. Label text and report counts from openFDA. Not affiliated with any drug maker.