On Wednesday 12/21 the FDA approved tocilizumab (Actemra; 8 mg/kg, 60-min IV infusion ) for hospitalized COVID-19 on steroids, supplemental O2 & req ventilation, or ECMO; 1st MAb approved for COVID-19; Prev EUA issued in June 2021 https://t.co/BswLu4ZY5O https://t.co/7gpPkeoPZ4