Tylenol Autism Lawsuit [2026 Update] Tylenol Linked To ASD The recent discussion about acetaminophen (Tylenol) and autism has raised understandable concerns, but decades of high quality research is clear acetaminophen use during pregnancy does not cause autism. While the causes of 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 Tylenol (acetaminophen) does not cause autism. The FDA, in its statement that there may be an association, confirmed that "a causal relationship has not been established, and studies of millions of children