Fact Check: Can Tylenol Cause Autism? 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 What the research says about autism and acetaminophen use during pregnancy Yale School of Public Health 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 The impact of glutathione metabolism in autism spectrum disorder ScienceDirect An Update on the Connection Between Acetaminophen and Autism: Expanding Evidence and Misinterpreted Sibling Control Studies[v6] Preprints.org