"Don't take Tylenol if you're pregnant, and don't give Tylenol to your child," Trump said in a White House briefing, emphatically repeating this warning more than a dozen times. What have research studies actually found? One reason such research is difficult is that parents may not remember, or may misreport, how much of the drug they actually took during pregnancy. And if I hadn't had Tylenol to take, I can't imagine the suffering I would have had for two months." Worried parents might wonder how they're supposed to make decisions when the research community might debate autism and acetaminophen for years to come.