New Animal Drugs for Use in Animal Feeds; Melengestrol; Monensin; Tylosin

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The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect approval of a supplemental abbreviated new animal drug application (ANADA) filed by Ivy Laboratories, Division of Ivy Animal Health, Inc. The supplemental ANADA provides for use of increased dose levels of monensin in three-way, combination drug Type C medicated feeds for heifers fed in confinement for slaughter containing melengestrol acetate, monensin, and tylosin.