Acetaminophen Toxicity: How Genetic Susceptibility Combines with Environmental Factors 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. Is Tylenol Safe During Pregnancy? Understanding Risk Factors Seeking Health What Is Acetaminophen? Definition, Uses, Side Effects, and Risks Olympic Behavioral Health sagesteele @P_McCulloughMD While I dont know whether there is a connection between Tylenol and autism, I do believe that there is reason to STOP giving it to babies children. Glutathione is impacted by Tylenol, Autism, And The Glutathione Connection OC Integrative Medicine