Health Canada says there is “no conclusive evidence” that using Tylenol as directed during pregnancy can cause autism or other neurodevelopmental disorders in newborns.

The advisory issued Wednesday is the latest pushback on claims raised by U.S. President Donald Trump and his top political health appointees this week, which were not backed by any new evidence or research.

“Acetaminophen is a recommended treatment of pain or fever in pregnancy when used as directed,” the Canadian advisory says, using the generic name of the drug commonly marketed as Tylenol. “It should be used at the lowest effective dose for the shortest duration needed.

“Untreated fever and pain in pregnant women can pose risks to the unborn child,” it adds.

The advisory notes that acetaminophen has been used s

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