New Animal Drugs for Use in Animal Feeds; Salinomycin and Roxarsone

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The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect approval of a new animal drug application (NADA) filed by Alpharma, Inc. The NADA provides for using approved, single-ingredient salinomycin and roxarsone Type A medicated articles to make two-way combination Type C medicated feeds used for prevention of coccidiosis, increased rate of weight gain, improved feed efficiency, and improved pigmentation in roaster and replacement breeder and layer) chickens.