Acetaminophen (Tylenol) Use in Pregnancy: Autism Concerns 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, Tylenol Autism Lawsuit [2026 Update] Tylenol Linked To ASD Evidence That Acetaminophen Triggers Autism in Susceptible Individuals Has Been Ignored and Mishandled for More than a Decade[v1] Preprints.org Nini Munoz , PhD. Since the administration claimed Tylenol as a cause of autism, we've seen a number of alternative and 'integrative' practitioners talking Instagram 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