Overview

• At a White House event, President Trump urged pregnant patients to limit acetaminophen use unless medically necessary and said the FDA will alert clinicians and begin a safety label-change process.
• Health Secretary Robert F. Kennedy Jr. joined Trump in promoting leucovorin as a potential way to reduce autism symptoms.
• Researchers and major obstetric groups say evidence remains inconclusive and largely observational, citing a 2024 Swedish sibling study that found no causal link.
• Tylenol maker Kenvue rejected any connection and its shares fell about 5% to 6% after reports of the planned announcement.
• Federal agencies pointed to expanded autism work, with NIH planning $50 million in grants and other studies on causes and treatments.