- prior diagnosis of covid-19 infection (> 10 days from screening) - current or recent (within 10 days of screening) hospitalization - known allergy/sensitivity or any hypersensitivity to components of the study drug or placebo - known contraindication(s) to study drug including prohibited concomitant medications

- prior diagnosis of covid-19 infection (> 10 days from screening) - current or recent (within 10 days of screening) hospitalization - known allergy/sensitivity or any hypersensitivity to components of the study drug or placebo - known contraindication(s) to study drug including prohibited concomitant medications