Taking acetaminophen, the active drug in Tylenol, during pregnancy does not increase the risk of autism, according to one of the largest studies ever conducted on the issue.
In an analysis of more than 1.5 million Danish children, researchers found that prenatal exposure to acetaminophen was associated with just a three percent higher risk of autism in the general population — a difference that was not statistically significant.
Further, a sibling analysis comparing
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