What the evidence says about Tylenol, leucovorin, and autism

In dispensing advice on Tylenol and autism, Trump takes on a new role: doctor in chief

September 23, 2025 Check out STAT+

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Illustration by Brendan Smialowski/Getty Images What the evidence tells us about Tylenol, leucovorin, and autism Trump highlights old but unsettled claims: Tylenol-pregnancy autism risk, leucovorin's promise of improved autistic speech. Here's what the science says. By Matthew Herper Countering Trump, European health officials stress that acetaminophen is safe to use during pregnancy U.K. and E.U. regulators stress Tylenol is safe in pregnancy, countering Trump's claims that acetaminophen use could raise autism risk for children. By Andrew Joseph Trump, questioning vaccine safety, pushes major changes to how kids get shots At a White House event on autism, Trump baselessly linked vaccines to the disorder and urged major changes in how kids get their shots. By Daniel Payne, Anil Oza, and Chelsea Cirruzzo Mark Schiefelbein/AP In dispensing advice on Tylenol and autism, Trump takes on a new role: doctor in chief Trump's Tylenol warning, more forceful than his Covid health claims, show a pattern of presidential medical advice at odds with science By Jonathan Wosen and Angus Chen STAT+ | Apple Watch's hypertension alert misses half of cases. Experts still think it will boost treatment Experts say sensitivity rate may be low, just 41%, but that any feature that nudges people toward blood pressure care is a good thing. By Mario Aguilar Citing possible link to autism, Trump urges limiting use of Tylenol during pregnancy Researchers say the science is inconclusive on both the risks of Tylenol and the possible benefits of leucovorin By O. Rose Broderick Alex Hogan/STAT STAT+ | Scholar Rock SMA drug rejected due to problems at contract manufacturing site The longstanding problems at the Indiana facility, which is owned by Novo Nordisk, have tripped up other drug approvals as well. By Adam Feuerstein

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