No link between acetaminophen use during pregnancy and children's autism risk 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 There is no conclusive evidence that acetaminophen use during pregnancy causes autism in children. Read Acting NYC Health Commissioner Dr. Michelle Morse's statement Debate Flares Over an Unproven Link Between Tylenol and Autism The New York Times