Tylenol, Autism, and Childhood Vaccines: What to Know from a Community Faculty Doc Elson S. Floyd College of Medicine News Washington State University Vaccinations Less Effective Following Tylenol Mommyhood101 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 There has been lots of misinformation recently about acetaminophen and Autism or ADHD. Here's what you need to know about using Tylenol ( acetaminophen) during pregnancy: Some studies have raised concerns about links