It's unacceptable to use human-labeled drugs for common diseases in food animals because veterinary-labeled drugs are

Aoften a totally different substance.

Bmore effective.

Cusually cheaper.

Deasily available. user: although not strictly enforced in small-animal medicine, the law states that drugs used to treat animals

Acan be used in humans.

Bare illegal.

Cmust have an animal label.

Dmust be dispensed by a veterinarian