Monoclonals are but one medicine that is helpful. NAC is incredibly helpful and readily available in hospitals, yet, it's also never used, due to the dang CDC. Information on NAC is here:
NAC to Combat COVID-19: an evidence review
https://www.dovepress.com/getfile.php?fileID=63267
It is hard for me to believe hospitals and the CDC are really doing a dang functional thing to help patients without the patient having to teach his or her doctor about proper treatment for COVID-19 IN THE HOSPITAL. If you can't read between my lines on that, let me spell it out for you: Hospitals and the CDC are purposely killing people with COVID, when therapies exist with proven benefit, when properly and timely applied at the appropriate stage.
Other studies of all sorts of useful therapies are available here:
Problem is that the elite ruling class can’t make money off of recoveries.