FILE - This Monday, April 6, 2020 file photo shows an arrangement of hydroxychloroquine tablets in Las Vegas. According to results released on Thursday, May 7, 2020, a new study finds no evidence of benefit from a malaria drug widely promoted as a treatment for coronavirus infection. Hydroxychloroquine did not lower the risk of dying or needing a breathing tube in a comparison that involved nearly 1,400 consecutive patients treated at Columbia University Irving Medical Center in New York. (AP Photo/John Locher)