Skip to Content


New Animal Drugs for Use in Animal Feeds; Bacitracin Methylene Disalicylate and Chlortetracycline

Document Details

Information about this document as published in the Federal Register.

Document Statistics
Document page views are updated periodically throughout the day and are cumulative counts for this document including its time on Public Inspection. Counts are subject to sampling, reprocessing and revision (up or down) throughout the day.
Published Document

This document has been published in the Federal Register. Use the PDF linked in the document sidebar for the official electronic format.

Start Preamble


Food and Drug Administration, HHS.


Final rule; technical amendment.


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 bacitracin methylene disalicylate and chlortetracycline to make two-way combination drug Type B and Type C medicated feeds for swine.


This rule is effective August 18, 2004.

Start Further Info


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

End Further Info End Preamble Start Supplemental Information


Pennfield Oil Co., 14040 Industrial Rd., Omaha, NE 68144, filed ANADA 200-358 for use of PENNCHLOR (chlortetracycline) and BMD (bacitracin methylene disalicylate) Type A medicated articles to make two-way combination drug Type B and Type C medicated feeds for swine. Pennfield Oil Co.'s ANADA 200-358 is approved as a generic copy of Alpharma, Inc.'s new animal drug application 141-059. The ANADA is approved as of July 2, 2004, and the regulations are amended in § 558.76 (21 CFR 558.76) to reflect the approval. The basis of approval is discussed in the freedom of information summary.

In addition, FDA is amending § 558.76 by removing specifications for a bacitracin methylene disalicylate and chlortetracycline combination drug Type B medicated feed that was added to the regulations in 1998 (63 FR 44385, August 19, 1998). The specification contains an error, but also was codified unnecessarily. This amendment is being done to improve the accuracy and consistency of the animal drug regulations.

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.

Start List of Subjects

List of Subjects in 21 CFR Part 558

  • Animal drugs
  • Animal feeds
End List of Subjects Start Amendment Part

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:

End Amendment Part Start Part


End Part Start Amendment Part

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

End Amendment Part Start Authority

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

End Authority Start Amendment Part

2. Section 558.76 is amended in the table by revising paragraph (d)(1)(iv) to read as follows:

End Amendment Part
Bacitracin methylene disalicylate.
* * * * *

(d) * * *

(1) * * *

Bacitracin methylene disalicylate in grams per tonCombination in grams per tonIndications for useLimitationsSponsor
*         *         *         *         *         *         *
(iv) 10 to 30Swine: for increased rate of weight gain and improved feed efficiency.For growing and finishing swine046573 053389
Chlortetracycline approximately 400, varying with body weight and food consumption to provide 10 milligrams per pound of body weight per day.Swine; for increased rate of weight gain and improved feed efficiency; for treatment of bacterial enteritis caused by Escherichia coli and Salmonella choleraesuis and bacterial pneumonia caused by Pasteurella multocida susceptible to chlortetracycline.Feed for not more than 14 days; chlortetracycline provided by Nos. 046573 and 053389 in § 510.600(c) of this chapter.046573 053389
Swine; for control of porcine proliferative enteropathies (ileitis) caused by Lawsonia intracellularis susceptible to chlortetracycline.Feed for not more than 14 days; chlortetracycline and BMD as provided by 046573 in § 510.600(c) of this chapter.046573
Start Printed Page 51173
*         *         *         *         *         *         *
* * * * *
Start Signature

Dated: August 2, 2004.

Linda Tollefson,

Acting Director, Center for Veterinary Medicine.

End Signature End Supplemental Information

[FR Doc. 04-18845 Filed 8-17-04; 8:45 am]