Department of Health and Human Services Links Prenatal Tylenol Use to Autism: Expanding Litigation Risks for Manufacturers, Retailers, Distributors, and Clinicians

On September 22, 2025, the Department of Health and Human Services (HHS) released a report highlighting alleged consistent associations between in utero acetaminophen (Tylenol) exposure and later diagnoses of autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD). On the same day, President Trump and HHS Secretary Robert F. Kennedy, Jr. announced a series of federal actions in response to these findings, including a directive for the Food and Drug Administration (FDA)…
By: Mayer Brown