WASHINGTON (AP) — President Donald Trump isn’t a doctor. But he played one on TV Monday, offering copious amounts of unproven medical advice that he suggested — without providing evidence — might help reduce autism rates. Trump blasted Tylenol, promoting unproven links between the pain reliever and autism and pushing the well-established treatment into a national image crisis. “Don’t take Tylenol,” Trump instructed pregnant women around a dozen times during a White House news conference. He also urged mothers not to give infants the drug, known generically as acetaminophen. The latest blow could invite more litigation and prompt customers to switch to alternatives. But the maker of Tylenol, Kenvue Inc., is refuting Trump’s challenge, and analysts think loyalty to a product that has been on the market since the 1950’s may limit damage.