(NewsNation) — President Donald Trump is set to make an announcement about autism on Monday that is expected to include a recommendation that pregnant women refrain from using Tylenol unless they have a high fever, a source tells NewsNation.

Tylenol, whose active ingredient is acetaminophen, is a common pain reliever that doctors have long considered safe to use during pregnancy.

The Trump administration is expected to say that using Tylenol during pregnancy could contribute to autism risk, the White House source said. However, leading maternal and prenatal care organizations have pushed back against the anticipated claim, which was first reported earlier this month.

Watch the press conference in the player above at 4 p.m. Eastern time.

"Acetaminophen remains a safe, trusted option for

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