Lancet meta-analysis finds no autism risk from acetaminophen in pregnancy
A Lancet Obstetrics, Gynaecology & Women’s Health meta-analysis of 43 studies (over 300,000 pregnancies) found no evidence that prenatal acetaminophen exposure increases autism, ADHD, or intellectual disability, reinforcing current guidance to use Tylenol at the lowest effective dose for the shortest duration and to discuss use with a clinician; the findings provide reassurance amid earlier Trump-era warnings about Tylenol and pregnancy, while noting that fever management remains important.