animalanon here.
The only difference between animal and human meds is the packaging and dosing.
Same drug, same factory, just packaged, labeled and priced differently.
Ask your vet next time you see them.
We have been taking "animal" meds forever.
Why?
Because it's easily available and it is CHEAPER
Same exact stuff.
I, personally, have been in the field close to 30 years and have only gone to see the doctor for surgery.
That's how vets roll. Yes, most of them. Smart ones.