There was anecdotal evidence Ivermectin and Hydroxychloroquine had done some good in India. However if you look at the amount of different drugs they pumped into patients in the early stages it's very difficult to say which if any were doing anything, and how much was just early intervention in any case. Both were proven to have little effect, if any at all past mild onset relief. The kicker is that India completely about faced 2 months ago and removed both from the treatment list completely, and from the look of it, it hasn't made much difference since, so either they were doing nothing or doctors are continuing to use them against recommended procedure.
I think someone may have already posted that a key instigator of the use of Ivermectim in the USA died of covid not long ago. There's been a few of these key anti vaccine, covid is just a flu types get killed by covid recently in the US, a lot of folks there poking fun at them, so the FDA line is not out of line with that.