Also, some breeds, like Collies and breeds that were developed using the Collie could suffer fatal side effects
from it. It's just not worth chancing it. Animals are like people in
that none of them should be given medication that was not prescribed for them, and in animals it's even more important since they can't tell us if they are feeling bad from taking it, we can only guess from what we can see, and sometimes by the time we notice a problem it's too late to help them.