The probability of a child developing ADHD symptoms severe enough to require medication increased by 63 percent when the mother took acetaminophen during the last two trimesters of pregnancy. 

The findings are based on more than 64-thousand Danish mothers and their children.

An editorial published alongside this study praised acetaminophen's "notable methodological strengths," but cautioned that both physicians and pregnant women would be wrong to change their practices based on it's findings.


photo credit: Eric C Bryan via photopin cc