Overview

• President Trump said he will announce autism-related findings Monday and noted HHS Secretary Robert F. Kennedy Jr. and CMS Administrator Dr. Mehmet Oz will join him in the Oval Office.
• The Washington Post and earlier Wall Street Journal reporting say officials plan to link prenatal acetaminophen use to autism risk and to highlight leucovorin as a potential therapy.
• Reporting indicates federal health officials are expected to advise avoiding Tylenol early in pregnancy unless treating a fever, challenging prevailing clinical guidance.
• Tylenol maker Kenvue rejected any causal link and cited regulators and clinicians who consider acetaminophen safe in pregnancy as needed; experts warn untreated fever and pain carry risks.
• Research remains mixed, with a large 2024 JAMA sibling-controlled study finding no association, smaller studies and meta-analyses suggesting associations without proving causation, and early leucovorin trials described as preliminary.