Only by those too dumb to know any better.

Interesting that you would post that about a Nobel Prize winning drug taken by millions that appears to have some use other than just as a tremendous anti-parasitic.
Really, there's no big money in using an off-patent drug for other things. Generics don't make Pharma rich. Not like putting patients in hospital and damaging their kidneys with Remdesivir (happened to someone I know, who spent
three months fighting COVID in hospital until his wife smuggled in Ivermectin and Zinc. He recovered with about 10% of his kidney function intact.), and using respirators to push bacterial infections into their lungs.
I'm not even going to talk about the tens of billions of dollars made with a 'safe and effective
TM' untried set of injections that were supposed to
stop you from getting infected stop you from spreading the virus keep you from getting a severe infection etc., all done without any libility at all under an emergency use authorization that could only be kept if the full court press to discredit any effective treatment worked.
Just two weeks to flatten the curve. No, not that one, the economy.
So many lies, so many believers. Unlike the patent medicines Collier's panned back in the day, these regimens did not contain alcohol, opiates, or radium, just independently approved and long used drugs and supplements the FDA had approved of: Hydroxychloroquine and Azithromycin, or Ivermectin and Doxycycline, and Zinc supplements.
Believe what you will, I have posted links on other threads to peer reviewed medical journal articles to back my stance. Besides, I know what worked for me.