Prudent use of medicines

Medicines and other substances used to treat animals must be used in such a way that the animal health and welfare are promoted. The medicine and other substance used must be administered to the animal so that minimal harm is caused  to the animal. In addition, the medicines and other substances used to treat food-producing animals must be administered in such a way that the safety or quality of the food from the animal is not unnecessarily reduced. Additionally, the administration of a medicine or other substance may not cause significant harm to humans or the environment.