Another big study involving women came down today, this one followed more than 60,000 women who took Tylenol while they were pregnant.
Researchers in Denmark and at UCLA found a link between taking acetaminophen while pregnant, and children who develop attention deficit hyperactivity disorder later.
More than 1/2 the mothers said they'd taken Tylenol during pregnancy, which is considered safe. But, the study found kids had a higher risk of ADHD behavior by age 7, if their mother had taken the pain killer during pregnancy.
This is published in the 'Jama Pediatarics', and calls for further study.