US ends emergency authorization of hydroxychloroquine for COVID-19

This scanning electron microscope image shows SARS-CoV-2 (yellow)—also known as 2019-nCoV, the virus that causes COVID-19—isolated from a patient, emerging from the surface of cells (blue/pink) cultured in the lab. Credit: NIAID-RML

The United States on Monday withdrew emergency use authorizations for two coronavirus treatments favored by President Donald Trump, citing their lack of efficacy and safety concerns.

“It is no longer reasonable to believe that oral formulations of HCQ (hydroxychloroquine) and CQ (chloroquine) may be effective in treating COVID-19,” Denise Hinton, chief scientist of the Food and Drug Administration (FDA) wrote in a letter.

She added: “Nor is it reasonable to believe that the known and potential benefits of these products outweigh their known and potential risk.

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