Your Side Effects May IncludeTamiflu side effects
oseltamivir
This side effect is printed on the FDA label for Tamiflu. It was a question in our daily quiz, where you pick the real side effect from four choices.
Strange behavior and confusion, especially in children
The flu itself can cause this too, so it's hard to know which is to blame. Some cases led to injury.
“People, especially children, who have the flu, can develop nervous system problems and abnormal behavior that can lead to death.”
Watch children closely for unusual behavior and call the doctor right away if you see it.
964 reports to the FDA's adverse event system mention abnormal behavior. A report is not proof the drug caused it. See the query
From quiz No. 16 · October 10, 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.