Lawsuits Seek to Link Tylenol Ingredient to Autism, ADHD WSJ 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. 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, Pediatric doctor discusses 20 year awareness of Tylenol's role in autism risk factors Autism Update October 2025 Optimal Health Spectrums Acetaminophen Toxicity: How Genetic Susceptibility Combines with Environmental Factors