IVM is available non-prescription and over-the-counter at various farm supply stores (may vary by state).
Just remember the FDA says, stop it, you’re not a horse.
But apparently the NIH recently admitted IVM works for COVID, so your mileage may vary.
Does anybody know where I can find some fresh hay in northeast Ohio? I'm feeling a bit hungry.
Hel-l-l-l-o, Wilbur-r-r!