Overview

• President Trump and HHS Secretary Robert F. Kennedy Jr. urged pregnant people to avoid acetaminophen, with Trump also telling parents not to give Tylenol to young children.
• Major medical groups and researchers cite stronger studies—most notably a 2024 Swedish JAMA sibling‑controlled analysis—that find no causal link between prenatal acetaminophen and autism or ADHD.
• The FDA is beginning a review to add warning language even as it says a causal relationship is not established, and the NIH announced a $50 million Autism Data Science Initiative.
• International regulators and health bodies, including the WHO, EMA, MHRA, Health Canada and NHS England, reaffirm guidance that paracetamol remains appropriate in pregnancy when used as directed.
• Clinicians and several Republican physician‑senators urge decisions be made with doctors, noting acetaminophen is often the safest fever and pain option in pregnancy and that untreated fever carries documented risks.