I would be astounded if there are many billionaires in the USA who are not this moment already taking chloroquine/hydroxychloroquine in the recommended prophylaxis doses, even outside of those deemed mission-critical by the most powerful organization on the continent.
There's a phase 3 trial for treating pneumonia associated with coronavirus. This is based on prior work showing anti-inflammatory response in rheumatoid arthritis (https://www.ncbi.nlm.nih.gov/pubmed/8278823).
Note that the trial is happening in China (https://clinicaltrials.gov/ct2/show/NCT04261517), where the barriers of entry and approval are quite low.
Huh. I'm on 200mg/day for rheumatoid arthritis.
I wonder if I ought to double dose for a while.
There are a fair amount of studies who took the initial in vitro results (i.e. cell culture) suggesting non-specific antiviral activity (at that level coca-cola is also an antiviral, antimicrobial, and antitumoral, by the way), into animal or human, and they just did not pan out, because it isn't an antiviral.