Though medical professionals broadly cite acetaminophen as among the safest painkillers to take during pregnancy, Trump insisted that 'taking Tylenol is not good' for a developing fetus. Following RFK Jr.'s talking points, he also claimed that there is 'no reason' to vaccinate newborns against Hepatitis B.

Washington Post says announcement imminent despite guidelines showing drug is safe for pregnant women to take

Federal health officials also are expected to highlight leucovorin as a potential autism treatment, according to The Washington Post.