Sept. 22 (UPI) -- President Donald Trump likely will announce Monday that use of Tylenol in pregnancy causes autism, according to media reports.

Trump told reporters Sunday night that he believed Tylenol was "a very big factor" in autism risk, despite a recent study finding that taking acetaminophen, the active ingredient in Tylenol, during pregnancy was not tied to autism spectrum disorder.

When asked to confirm reports that he planned to tie Tylenol to increased risk of autism, Trump said, "We're going to see tomorrow. We're going to do it tomorrow, but I think it's a very big factor."

An announcement is scheduled for 4 p.m. EDT with Health and Human Services Secretary Robert F. Kennedy Jr. and Dr. Mehmet Oz, administrator of the Centers for Medicare and Medicaid Services.

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