Quote Originally Posted by the_knot View Post
I looked and could not find anything, other than do not use on horses intended for human consumption.
It's in one of the links posted above. I am copying and pasting a few for you:

Withdrawal Time Cattle excluding veal: 35 days before slaughter. Swine: 18 days before slaughter. Reindeer: 56 days before slaughter. Bison: 56 days before slaughter. Milk: no withdrawal has been established.