Landmark FDA approval of antiviral drug as 1st COVID-19 treatment comes amid conflicting efficacy data October 22, 2020 Auto Bot BioPharma, biopharma nl, Community, Gilead Sciences, News 0 The Food and Drug Administration approved Gilead’s antiviral drug as the first treatment for Covid-19 but just last week a WHO report showed that the drug appeared to have little to no effect on hospitalized patients.