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

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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 a fixed-combination Type A medicated article containing chlortetracycline and sulfamethazine to make two-way combination drug Type C medicated feeds for beef cattle.


This rule is effective April 28, 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 68137, filed ANADA 200-314 for use of PENNCHLOR S 700 (chlortetracycline/sulfamethazine), a fixed-combination Type A medicated article used to make two-way combination drug Type C medicated feeds for beef cattle. Pennfield Oil Co.'s PENNCHLOR S 700 Type A medicated article is approved as a generic copy of Alpharma Inc.'s AUREO S 700, approved under NADA 35-805. The ANADA is approved as of January 29, 2003, and the regulations are amended in 21 CFR 558.140 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 Dockets Management Branch (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 558.140 Chlortetracycline and sulfamethazine is amended in paragraph (a) by removing “046573” and by adding in its place “Nos. 046573 and 053389”.

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Dated: April 1, 2003.

Stephen F. Sundlof,

Director, Center for Veterinary Medicine.

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[FR Doc. 03-10418 Filed 4-25-03; 8:45 am]