Tylenol & Autism: The Truth Behind Common Misconceptions Updates on Tylenol Autism Lawsuit Frontiers Improving Antioxidant Capacity in Children With Autism: A Randomized, Double Blind Controlled Study With Cysteine Rich Whey Protein 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. The role of oxidative stress, inflammation and acetaminophen exposure from birth to early childhood in the induction of autism What the research says about autism and acetaminophen use during pregnancy Yale School of Public Health