Also I'm not buying into this theory that we shouldn't allow an effective treatment, just because someone is supposedly overdosing the veterinary version of the drug. It might be partially true for addicting drugs I suppose, but even in this case, that's why we have doctors and prescriptions.
In the talk above, the Ivermectin safety profile is specifically discussed here: [1]
"Ivermectin was generally well tolerated, with no indication of associated CNS toxicity for doses up to 10 times the highest FDA-approved dose of 0.2mg/kg." [2]
The only way you can overdose is if you use horse paste, and get the dose wrong by more than an order of magnitude. Even then, it's unlikely to result in hospitalization or death. The only reason people have to use horse paste is because they are unable to safely obtain Ivermectin by other means.
1. https://player.vimeo.com/video/554350476?autoplay=1#t=6300
The majority of available Ivermectin also contained inactive ingredients that had no been safety tested on humans, again because of its primary veterinary uses.
WHO looked at these facts and data from 16 trials that yielded “very low certainty" of efficacy before recommending against its use, but leaving the door open for further research suggesting additional trials were needed.