The role of oxidative stress, inflammation and acetaminophen exposure from birth to early childhood in the induction of autism Tylenol, Autism, And The Glutathione Connection OC Integrative Medicine Is Tylenol Safe During Pregnancy? Understanding Risk Factors Seeking Health 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.