Oh wow how long this thread became!
As I mentioned earlier, even Dr. Zelenko does not make any claims aside from his anecdotal observations, he also agrees that this is not the standard of how medicine is practiced, but it is his opinion that the deviation is appropriate due to this being a pandemic.
But it is important to that Dr. Zelenko is dealing with a different group of people than that of the hospitals (who some of them did run studies on Hydroxy for Covid19 patients).
Dr. Zelenko is dealing with stable patients that do not (yet) require hospitalization, they are not suffering from respiratory failure, extreme hypoxia, hypercoagulation, sepsis and organ failure, or cytokine storm.
In fact, he claims that his treatment regiment is prevented his patients from becoming so sick so they have all these other complications that come along with the advanced stages of the disease.
The hospitals are dealing with patients that are already more advanced with the disease to the point that they require hospitalization.
This is why it makes it difficult to compare the success rate as there are different objectives for each group.
Also, not only is Dr. Zelenko still working on figuring this out and gathering anecdotal data, I am sure he understands that taking these medications have side effects, some benign that only cause people to be uncomfortable and others that are more severe such as changes in the electrical conduction of the heart that makes the patient vulnerable to deadly dysrhythmias.
Like everything in life, especially with medicine Risk vs Benefit has to be taken into consideration.
My point is, while this might or might not be as effective as the claims are, it for sure is not a simple straightforward treatment regiment for any group of patients.