Econor blev enten anvendt til behandling af dyr, der allerede havde fået sygdommen, eller til at forebygge udbrud af sygdommen hos svin, der var i kontakt med syge dyr, eller på landbrug, hvor sygdommen tidligere havde optrådt gentagne gange.
Econor was used either to treat animals that were already affected by a disease or to prevent the outbreak of the disease in pigs in contact with diseased animals as well as on farms with a history of repeatedly re-occurring disease.