Overview

• President Trump told pregnant women to avoid Tylenol and said the FDA would notify physicians, framing prenatal acetaminophen as raising autism risk.
• The WHO said no link between paracetamol use in pregnancy and autism has been demonstrated, and the EMA likewise found no evidence warranting a causal claim.
• The American College of Obstetricians and Gynecologists and the Society for Maternal-Fetal Medicine maintain acetaminophen remains an option in pregnancy when used at the lowest effective dose and duration.
• Research remains mixed: recent observational reviews note associations, but a large Swedish sibling-controlled study of about 2.5 million births found no causal link.
• Trump also questioned newborn Hepatitis B vaccination, drawing criticism from medical experts, while Tylenol maker Kenvue rejected the claim and its shares fell after the remarks.