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

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Food and Drug Administration, HHS.


Final rule.


The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect approval of an abbreviated new animal drug application (ANADA) filed by Pennfield Oil Co. The ANADA provides for the use of single-ingredient Type A medicated articles containing salinomycin and chlortetracycline to make two-way combination drug Type C medicated feeds for broiler chickens.


This rule is effective September 19, 2003.

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Lonnie W. Luther, Center for Veterinary Medicine (HFV-104), Food and Drug Administration, 7519 Standish Pl., Rockville, MD 20855, 301-827-8549, e-mail:

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Pennfield Oil Co., 14040 Industrial Rd., Omaha, NE 68144, filed ANADA 200-357 for use of PENNCHLOR (chlortetracycline) and salinomycin Type A medicated articles to make two-way combination drug Type C medicated feeds for broiler chickens. Pennfield Oil Co.'s ANADA 200 357 is approved as a generic copy of Alpharma, Inc.'s NADA 140-859. The ANADA is approved as of August 19, 2003, and the regulations are amended in 21 CFR 558.550 to reflect the approval. The basis of approval is discussed in the freedom of information summary.

In accordance with the freedom of information provisions of 21 CFR part 20 and 21 CFR 514.11(e)(2)(ii), a summary of safety and effectiveness data and information submitted to support approval of this application may be seen in the Division of Dockets Management (HFA-305), Food and Drug Administration, 5630 Fishers Lane, rm. 1061, Rockville, MD 20852, between 9 a.m. and 4 p.m., Monday through Friday.

The agency has determined under 21 CFR 25.33(a)(2) that this action is of a type that does not individually or cumulatively have a significant effect on the human environment. Therefore, neither an environmental assessment nor an environmental impact statement is required.

This rule does not meet the definition of “rule” in 5 U.S.C. 804(3)(A) because it is a rule of “particular applicability.” Therefore, it is not subject to the congressional review requirements in 5 U.S.C. 801-808.

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List of Subjects in 21 CFR Part 558

  • Animal drugs
  • Animal feeds
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Therefore, under the Federal Food, Drug, and Cosmetic Act and under authority delegated to the Commissioner of Food and Drugs and redelegated to the Center for Veterinary Medicine, 21 CFR part 558 is amended as follows:

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1. The authority citation for 21 CFR part 558 continues to read as follows:

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Authority: 21 U.S.C. 360b, 371.

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2. Section 558.550 Salinomycin is amended in paragraph (a)(3) by adding “and (d)(1)(xvi)” after “(d)(1)(xv)”; and in paragraph (d)(1)(xvi)(c) by removing “and 046573” and by adding in its place “and 053389”.

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Dated: September 11, 2003.

Linda Tollefson,

Deputy Director, Center for Veterinary Medicine.

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[FR Doc. 03-23996 Filed 9-18-03; 8:45 am]