That's hydroxychloroquine right?

Same drug they use to treat lupus so it's well tested?

edit: oh wait, maybe not https://www.ncbi.nlm.nih.gov/pubmed/32150618

      Hydroxychloroquine was found to be more potent than chloroquine to inhibit SARS-CoV-2 in vitro.

If so, goodrx shows it's $20, hopefully it will spare some deaths.

https://www.goodrx.com/hydroxychloroquine