“Don’t take Tylenol,” Trump said to expectant mothers. Trump administration officials said the announcements this week were the first of many on autism in the coming years. The claims at the press conference alarmed many autism advocates and experts in the field. “No new data or scientific studies were presented or shared. “Rather, the most recent, rigorous study that controlled for unmeasured familiar risks found that acetaminophen did not cause autism,” the group said.