Special Report: Doctors embrace drug touted by Trump for COVID-19, without hard evidence it works

Laura Ng, who has lupus and had to recently call at least five pharmacies before she could find a place to fill her hydroxychloroquine prescription, is photographed in Seattle, Washington, U.S. March 31, 2020. Ng said she is worried about the supply due to interest in the drug as a treatment for coronavirus disease (COVID-19). REUTERS/Lindsey Wasson - RC2HVF9C7S82

NEW YORK/LOS ANGELES (Reuters) - The decades-old drug that President Donald Trump has persistently promoted as a potential weapon against COVID-19 has within a matter of weeks become a standard of care in areas of the United States hit hard by the pandemic — though doctors prescribing it have no idea whether it works.

Doctors and pharmacists from more than half a dozen large healthcare systems in New York, Louisiana, Massachusetts, Ohio, Washington and California told Reuters they are routinely using hydroxychloroquine on patients hospitalized with COVID-19. At the same time, several said they have seen no evidence that the drug, used for years to treat malaria and autoimmune disorders, has any effect on the virus.