Published on: 2014-07220. Final rule. 2014-07220. New Animal Drugs; Amprolium; Bambermycins; Ceftiofur; Deslorelin; Florfenicol; Florfenicol and Flunixin; Paclitaxel; Phenylbutazone; Pimobendan; Salinomycin; Tilmicosin; Tiludronate; Change of Sponsor