Overview

• The FDA said on Sept. 23 it will require labels noting a "possible association" between prenatal acetaminophen use and autism.
• President Trump told the public "Don't take Tylenol," a declaration that exceeds the agency's cautious framing.
• A Swedish analysis of nearly 2.5 million births reported autism diagnoses of 1.42% with prenatal exposure versus 1.33% without, indicating no meaningful difference.
• A separate Japanese cohort study involving more than 200,000 children reached similar conclusions, offering no evidence of a causal link.
• Clinicians and commentators warn that alarmist rhetoric could deter recommended treatment for fever or pain in pregnancy and risk stigma while diverting attention from core autism research needs.