That's kind of funny since this article argues that that's the wrong use of HCQ. It's an early stage treatment.
I have read a few studies that indicate that if the HCQ cocktail protocol is begun within the first 24 hours of admission to a hospital, there is a better than 50% chance the patient recovers and leaves the hospital alive and well. I dont remember which exact studies they were, because I was delving into quite a few at the time.