This is mirroring federal law for veterinary drugs.
But it can be a little bit PITA. I have a full bottle of banamine at home; sold to me by my vet pharmacy, who is required to list the horse, date, and veterinarian (as required above). But does that mean I ONLY use it on that horse? Of course not. I have 20 horses here; one gets colicky, it gets banamine. Another one has an eye ulcer, it gets banamine. A colt gets castrated, it gets banamine. That bottle is used (per veterinarian direction) on whatever horse needs it. Same with a bottle of ace and other sedatives, that I give according to vet directions as needed (clipping, shoeing, rehab turnout, etc).
When I travel out of state to shows, I take a 10cc dose of banamine with me. Because what if my horse gets a minor eye injury in the trailer, or starts acting a little colicky? I also keep some sedatives in the truck for an emergency as well (hauling, loading). Iâm not bringing the whole medicine cabinet with me, but chances are good I have a small amount of prescription medication with me to be prepared, and that medication wonât be pre-labeled for the horse itâs used on.