Taking acetaminophen during pregnancy is not clearly linked to autism or attention-deficit/hyperactivity disorder (ADHD) in children, a new review finds. The topic has been in the headlines since September when President Donald Trump warned that acetaminophen use in pregnancy was "associated with a very increased risk of autism" and the president advised pregnant women, "Don't take Tylenol." At the time, federal officials cited an August 2025 meta-analysis from researchers at Mt. Sinai, Harvard T.H. Chan School of Public Heath, UCLA Fielding School of Public Health and UMass Lowell that found prenatal exposure to acetaminophen may be associated with an increase in rates of neurodevelopmental disorders, including autism and ADHD, in children. However, the new analysis published Sunday in BM

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