New research shows that supposed links between acetaminophen use in pregnancy and autism or ADHD are likely due to confounding factors like genetics and family environment. Credit: Shutterstock An extensive review of existing studies, published in The BMJ on November 10, finds no clear evidence that using acetaminophen (Tylenol) during pregnancy increases the risk of autism or ADHD in children. The new analysis was conducted in response to growing public debate about the safety of acetaminophen