HCQ used as a early treatment for Covid infection is a good use. However, there have been 3,888,357 deaths world wide from Covid. If every one of them received HCQ treatment, that would have been quite a demand for it. Right now, HCQ costs $66 for 60 tablets (200mg) at Costco. If there was a huge demand world wide for HCQ, that cost would go through the roof. How much would it cost if all 3,888,357 were treated with HCQ? How many of the 179,534,629 world wide cases, even if they didn't die, would have been treated early on with HCQ? I can imagine the demand for HCQ would have been like the toilet paper wiped off the shelves as fast as it was supplied.

Then, the use of HCQ used as a preventative instead of a vaccine is another matter to consider. How much would HCQ cost if every one in the world took one 200 mg tablet each day?

Here is the year supply for the world's population (7.7 billion) taking one tablet per day:

2,810,500,000,000 tablets or 46,841,666,666 60 tablet bottles.

How much would those 60 tablet bottles cost at Costco?

$3,091,549,999,956

Why would everyone in the world have to take one tablet a day for a year?

The fact that you can multiply some big numbers together to get an even bigger number is irrelevant.

Try your numbers again with ivermectin, which is darned near free and only needs a few doses.

A pittance.