Tylenol, Autism, And The Glutathione Connection OC Integrative Medicine Acetaminophen Use During Pregnancy and Autism Risk Acetaminophen (Tylenol) use in Pregnancy The headline Tylenol causes autism has sparked concern. But the science tells a more nuanced story. Some observational studies have found that when pregnant women used more acetaminophen, their Mark Hyman, Acetaminophen's Role in Autism and ADHD: A Mitochondrial Perspective Evaluating the Role of Susceptibility Inducing Cofactors and of Acetaminophen in the Etiology of Autism Spectrum Disorder