Not controlled quite the same way as when used for humans, though I'm not sure it is very dangerous.
Oh yeeeeeeeeeeeeeees! Ivermectin for horses is outrageous dangerous!!! In a German pharmacy I got the horse version (on prescript) with the comment:: It is 100% human compatible.
The only real danger for humanity are people like you THHuxleynew that enjoy watching people dying. Spreading lies non stop, with the intention to help buddies making huge profits. You are even worse than any fascist I know.