Perhaps the dozens of Countries around the world and the myriad of drug trials showing the safety and effectiveness of Ivermectin changed their minds. See article. I recommend for your reading pleasure, 'The Real Dr. Fauci' by Robert F. Kennedy. It is eye opening and he is no right wing conspiracy theorist.
Link: https://www.thegatewaypundit.com/2022/11/outrageous-fda-backtracks-trial-now-claims-not-taking-ivermectin-covid-19-merely-recommendation/