(CNN) — President Donald Trump announced Monday that the US Food and Drug Administration will notify doctors that the use of Tylenol during pregnancy can be associated with a “very increased risk of autism,” despite decades of evidence that it is safe.

“They are strongly recommending that women limit Tylenol use during pregnancy unless medically necessary,” such as to treat fever, “if you can’t tough it out,” Trump said.

Experts say there are multiple causes of autism, and the science showing a connection between autism and Tylenol is not settled.

Without treatment, a fever can be dangerous for both the fetus and the pregnant person, experts say. Risks include miscarriage, birth defects and high blood pressure.

At some point during pregnancy, most people use acetaminophen, sold under

See Full Page