There is also a not insignificant portion of "animal antibiotics" that people buy to use themselves because they can't afford the 6x markup on "human" antibioti

There is also a not insignificant portion of "animal antibiotics" that people buy to use themselves because they can't afford the 6x markup on "human" antibiotics plus the doctors fees only to get the same pill made in the same factory with a slightly different label slapped on it.