The oral medication of sick animals is very common and a very preserve therapy. This method of therapy demands a high level of know-how for the veterinarians and also for meet-producers relating to food safety and bacterial resistance. In the new ordinance on veterinary medicine in 2004 many aspects of production and application of medicated feed are regulated in the legislation. This ordinance pretends to control all technical equipments used for production, transport and application of medicated feed by a qualified person (QP) on farms. Important criteria are defined in the ordinance on veterinary medicines.