PDF] Evidence that Increased Acetaminophen use in Genetically Vulnerable Children Appears to be a Major Cause of the Epidemics of Autism, Attention Deficit with Hyperactivity, and Asthma Semantic Scholar Tylenol and Autism: New Info for Pregnancy Acetaminophen Use During Pregnancy and Neurodevelopmental Risk: Biological Plausibility1 Journal of Obstetrics and Gynaecology Canada Evaluating the Role of Susceptibility Inducing Cofactors and of Acetaminophen in the Etiology of Autism Spectrum Disorder Vaccines do not cause autism. Neither does acetaminophen (Tylenol) use in pregnancy. Decades of rigorous research and systematic reviews have shown no credible link. Continuing to promote these myths is not only Acetaminophen causes neurodevelopmental injury in susceptible babies and children: no valid rationale for controversy