Trump administration officials plan to link the active ingredient in Tylenol to autism Monday, The Washington Post reported, citing unnamed people familiar with the matter. An earlier report that that the administration was investigating potential links between acetaminophen and autism sent shares of Tylenol-maker Kenvue sinking. On Saturday, President Donald Trump said an announcement on autism was coming on Monday without providing specifics. The Washington Post also said the administration will promote another drug, leucovorin, as a potential autism treatment. In late 2023, a judge rejected the scientific evidence behind the lawsuits alleging prenatal exposure to over-the-counter Tylenol caused autism.