On Monday, FDA Commissioner Dr. Marty Makary said the agency would speed a label change for leucovorin to help kids with folate deficiency in their brains — something he said could cause developmental...

But despite Trump’s claim, there is no strong scientific evidence to back it up.

During this week’s White House press conference in which President Trump named the over-the-counter drug Tylenol as a possible cause of rising autism rates, he did not mince words, urging pregnant wom...