Tylenol (acetaminophen) does not cause autism. The FDA, in its statement that there may be an association, confirmed that "a causal relationship has not been established, and studies of millions of children Is Tylenol Safe During Pregnancy? Understanding Risk Factors Seeking Health Evidence that acetaminophen triggers autism in susceptible individuals has been ignored and mishandled for more than a decade. Tylenol and autism: What parents deserve to know They told us Tylenol is safe. Pediatricians recommend them daily. But what if we've been missing the full story? Research shows that frequent use of acetaminophen (Tylenol) in babies and children