To evaluate the duration of oxygen therapy for both groups; measured in number of days of need of supplemental oxygen by catheter or masks.;To evaluate the hospitalization time for both groups; measured in number of days from the admission to the discharge.;To evaluate the percentage of individuals who will require admission to the Intensive Care Unit; due to clinical deterioration. In this situation; due to institutional restriction; the study drugs will be discontinued.;To evaluate the percentage of death.

To evaluate the duration of oxygen therapy for both groups; measured in number of days of need of supplemental oxygen by catheter or masks.;To evaluate the hospitalization time for both groups; measured in number of days from the admission to the discharge.;To evaluate the percentage of individuals who will require admission to the Intensive Care Unit; due to clinical deterioration. In this situation; due to institutional restriction; the study drugs will be discontinued.;To evaluate the percentage of death.