Key Points The Food and Drug Administration said it is ending its emergency use authorization of chloroquine and hydroxychloroquine, the anti-malaria drugs backed by President Donald Trump to combat Covid-19. The agency determined the drugs were “unlikely to be effective in treating COVID-19 for the authorized uses in the EUA.” Trump disclosed last month he was taking hydroxychloroquine daily to prevent infection from the coronavirus. ========================================================================== The Food and Drug Administration said Monday it is ending its emergency use authorization of chloroquine and hydroxychloroquine, the anti-malaria drugs backed by President Donald Trump to combat Covid-19. The agency determined the drugs...