Health Secretary and anti-vaccine activist Robert F. Kennedy Jr. on Monday evening announced that the use of Tylenol (aka acetaminophen, paracetamol) during pregnancy is linked to autism—an unproven assertion that had previously sent Kennedy's anti-vaccine allies into a rage.
In a press event alongside Trump, Kennedy said that the Food and Drug Administration will work to update the drug's safety label and notify physicians of the concerns. At the same time, the administration also touted leucovorin (folinic acid) as a potential treatment for autism, though there is scant evidence behind its use for autism.
Before the announcement, news reports revealing Kennedy's plan angered his anti-vaccine followers.