Acetaminophen (Tylenol) Use in Pregnancy: Autism Concerns The Evidence on Tylenol and Autism Johns Hopkins Bloomberg School of Public Health Evaluating the Role of Susceptibility Inducing Cofactors and of Acetaminophen in the Etiology of Autism Spectrum Disorder Tylenol can lower the body's key antioxidant, glutathione, though this isn't seen on routine labs. But mechanistic data clinical proof, so we still need good trials. The Tylenolautism link isn't clear. Read Our Blogs Philadelphia Integrative Psychiatry The Surprising Connection Between Glutathione and Autism Golden Care Therapy