Your Side Effects May IncludeXalatan side effects
latanoprost
This side effect is printed on the FDA label for Xalatan. It was a question in our daily quiz, where you pick the real side effect from four choices.
Longer, thicker, more numerous eyelashes
Its cousin drug is sold to grow lashes on purpose. Here the label calls it a side effect.
“Gradual change to eyelashes including increased length, thickness and number of lashes.”
Ask about eye color changes, which may be permanent. Remove contact lenses before using the drops.
121 reports to the FDA's adverse event system mention eyelash growth. A report is not proof the drug caused it. See the query
From quiz No. 15 · October 9, 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.