Tylenol is suddenly at the center of a heated conversation after former U.S. President Donald Trump claimed in a press conference that the drug could be linked to an increased risk of autism if taken during pregnancy. Its active ingredient is acetaminophen (also known as paracetamol outside the U.S.), a drug that reduces pain and lowers fever. Tylenol uses and risks Photo : iStockWhat Did Donald Trump Say About Tylenol? At his press conference, Trump said, “Taking Tylenol is not good. At the same time, Trump talked about ongoing pharmaceutical developments, including the approval of Leucovorin, a drug used in autism treatment.