Recently, the randomized RECOVERY study, conducted by the University of Oxford, declared dexamethasone as the world’s first treatment proven effective in reducing the risk of death among severely ill COVID-19 patients. The trial accompanied a total of 2104 patients treated with dexamethasone and 4321 who received conventional care. The dexamethasone group showed reduced 28-day mortality in COVID-19 patients receiving invasive mechanical ventilation or oxygen therapy without invasive mechanical ventilation, but not in patients who were not receiving any respiratory support (404).