I can’t speak to animal food, but I know plenty of folks that are too poor for insurance so when they get an infection they take fish amoxicillin. It’s dirt cheap and you don’t need a prescription.
I don’t recommend it because it contributes to the issue with antibiotic resistant bacteria and I believe most people won’t take it right, but I’ve been that poor with an abscessed tooth. So I took it for a week to kill the infection and saved up to have that tooth yanked. Sometimes you’ve gotta do what you’ve gotta do to survive.
There are some pretty awesome things as well, but none of them are related to healthcare or my abscessed tooth.
Very few, if any, of those “awesome” things are in any way unique to the US though.
I think that’s the thing that Americans need to realize.
The antibiotic resistance thing isn’t the only issue. We have FDA regulations for a reason. You will probably be OK, but those drugs are not meant for human consumption for a reason. I wouldn’t take them unless you literally have no other choice.
This country is so dystopic.