FILE – In this May 18, 2020 file photo, President Donald Trump tells reporters that he is taking zinc and hydroxychloroquine during a meeting with restaurant industry executives about the coronavirus response, in the State Dining Room of the White House in Washington. Results published Wednesday, June 3, 2020, by the New England Journal of Medicine show that hydroxychloroquine was no better than placebo pills at preventing illness from the COVID-19 coronavirus. The drug did not seem to cause serious harm, though – about 40% on it had side effects, mostly mild stomach problems. (AP Photo/Evan Vucci)