A White House briefing has been linked to changes in the use of paracetamol, also known as acetaminophen or Tylenol, and leucovorin. Reports indicate that use of paracetamol, particularly among pregnant women, has decreased following the briefing, while prescriptions for leucovorin have increased. The nature of the briefing's claims and their impact on prescribing patterns is not entirely clear, but it appears to have led to a shift in how these medications are being used.