Ivermectin tablets are approved for use in humans for the treatment of some parasitic worms (intestinal strongyloidiasis and onchocerciasis) and ivermectin topical formulations are approved for human use by prescription only for the treatment of external parasites such as headlice and for skin conditions such as rosacea.
Otherwise Ivermectin is approved only for animal usage.
Here is an article:
https://www.fda.gov/animal-vet...
This is linked in that article:
https://www.sciencedirect.com/...
2 more links:
The Battle against COVID 19 Pandemic: What we Need to Know Before we "Test Fire" Ivermectin
https://pubmed.ncbi.nlm.nih.go...
Ivermectin in COVID-19: What do we know?
https://www.ncbi.nlm.nih.gov/p...