In the WSJ yesterday it was explained how HC became used as a treatment, first in Wuhan (of course). Basically in Wuhan the Drs noticed that none of the patients in their hospitals who has lupus and were being treated for it with HC (or C I can't remember) came down with Covid. Realizing they were all being treated for their lupus with HC or C they started using that to treat Covid patients.
Indeed, that's interesting, and perhaps it was a good wartime decision then to start using it! But while talking about this, let's keep in mind that this is like the complete opposite of a clinical trial...
What is "HC" and "C"?
HC = hydroxychloroquine
C = chloroquine