Acetaminophen Use During Pregnancy and Neurodevelopmental Risk: Biological Plausibility1 Journal of Obstetrics and Gynaecology Canada The role of oxidative stress, inflammation and acetaminophen exposure from birth to early childhood in the induction of autism William Parker, Chi Dang Hornik, Staci Bilbo, Zoie E. Holzknecht, Lauren Gentry, Researchers are studying a possible link between acetaminophen (Tylenol) use during pregnancy and higher autism or ADHD risk. It may lower glutathione, an important antioxidant for brain development. They told us Tylenol is safe. Pediatricians recommend them daily. But what if we've been missing the full story? Research shows that frequent use of acetaminophen (Tylenol) in babies and children Acetaminophen, Pregnancy and Autism: What Is the Real Connection? Acetaminophen causes neurodevelopmental injury in susceptible babies and children: no valid rationale for controversy