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Withdrawal of Approval of New Animal Drug Applications; Roxarsone

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Information about this document as published in the Federal Register.

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

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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 the withdrawal approval of five new animal drug applications (NADAs) for roxarsone oral dosage form products at the sponsor's request because the products are no longer manufactured or marketed.


Withdrawal of approval is effective January 6, 2014.

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John Bartkowiak, Center for Veterinary Medicine (HFV-212), Food and Drug Administration, 7519 Standish Pl., Rockville, MD 20855, 240-276-9079,

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Zoetis Inc., 333 Portage St., Kalamazoo, MI 49007 has requested that FDA withdraw approval of the following five NADAs for roxarsone oral dosage form products, used to make medicated drinking water for chickens, turkeys, and swine, because the products are no longer manufactured or marketed:

NADAProprietary name
005-414REN-O-SAL (roxarsone) Tablets.
006-019Zuco Poultry Tablets.
006-081Korum Improved Formula.
008-274Pig Scour Tablets.
093-0253-NITRO (roxarsone) Soluble.

Elsewhere in this issue of the Federal Register, FDA gave notice that approval of NADAs 005-414, 006-019, 006-081, 008-274, and 093-025, and all supplements and amendments thereto, is withdrawn, effective January 6, 2014. As provided in the regulatory text of this document, the animal drug regulations are amended to reflect these voluntary withdrawals of approval.

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 520

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Therefore, under the Federal Food, Drug, and Cosmetic Act and under the authority delegated to the Commissioner of Food and Drugs and redelegated to the Center for Veterinary Medicine, 21 CFR part 520 is amended as follows:

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1. The authority citation for

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

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2. Remove §§ 520.2087, 520.2088, and 520.2089.

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Dated: December 20, 2013.

Bernadette Dunham,

Director, Center for Veterinary Medicine.

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[FR Doc. 2013-30838 Filed 12-26-13; 8:45 am]

BILLING CODE 4160-01-P0134