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 Department of Health and Human Services Food and Drug Administration 21 CFR Parts 510 and 520
 AGENCY: Food and Drug Administration, HHS.
 ACTION: Final rule.
 SUMMARY: 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 Superior Equine Pharmaceuticals, Inc. The ANADA provides for the veterinary prescription use of phenylbutazone powder administered to horses in feed for the relief of inflammatory conditions associated with the musculoskeletal system.
 DATES: This rule is effective May 18, 2007.
 FOR FURTHER INFORMATION CONTACT: John K. Harshman, Center for Veterinary Medicine (HFV-104), Food and Drug Administration, 7500 Standish Pl., Rockville, MD 20855, 301-827-0169, e-mail: 
                        *john.harshman@fda.hhs.gov*.


SUPPLEMENTARY INFORMATION: Superior Equine Pharmaceuticals, Inc., Pleasant Grove, UT 84062, filed ANADA 200-333 that provides for the veterinary prescription use of SUPERIORBUTE (phenylbutazone) Powder administered to horses in feed for the relief of inflammatory conditions associated with the musculoskeletal system. Superior Equine Pharmaceuticals, Inc.'s SUPERIORBUTE Powder is approved as a generic copy of IVX Animal Health, Inc.'s Phenylbutazone Tablets, USP, approved under NADA 91-818. The ANADA is approved as of April 20, 2007, and the regulations are amended in 21 CFR 520.1720e to reflect the approval. The basis of approval is discussed in the freedom of information summary. In addition, Superior Equine Pharmaceuticals, Inc., has not been previously listed in the animal drug regulations as a sponsor of an approved application. At this time, 21 CFR 510.600(c) is being amended to add entries for the firm. 
 
 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. FDA has determined under 21 CFR 25.33 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. List of Subjects in 21 CFR Part 510 Administrative practice and procedure
Animal drugs
Labeling
Reporting and recordkeeping requirements
 21 CFR Part 520 Animal drugs
 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 parts 510 and 520 are amended as follows: PART 510—NEW ANIMAL DRUGS
 1.The authority citation for 21 CFR part 510 continues to read as follows: Authority:
                        21 U.S.C. 321, 331, 351, 352, 353, 360b, 371, 379e. 2.Section 510.600 is amended in the table in paragraph (c)(1) by alphabetically adding a new entry for “Superior Equine Pharmaceuticals, Inc.” and in the table in paragraph (c)(2) by numerically adding a new entry for “027053” to read as follows: § 510.600
 
 (c) * * * (1) * * * Firm name and address
Drug labeler code*    *    *    *    *Superior Equine Pharmaceuticals, Inc., Pleasant Grove, UT 84062
027053*    *    *    *    *
 (2) * * * Drug labeler code
Firm name and address*    *    *    *    *027053
Superior Equine Pharmaceuticals, Inc., Pleasant Grove, UT 84062.*    *    *    *    *
 PART 520—ORAL DOSAGE FORM NEW ANIMAL DRUGS
 3.The authority citation for 21 CFR part 520 continues to read as follows: Authority:
                        21 U.S.C. 360b. 4.Revise § 520.1720e, to read as follows: § 520.1720e
 (a) 
                        *Specifications*
                        —(1) Each 1.15 grams (g) of powder contains 1 g phenylbutazone. (2) Each 10 g of powder contains 1 g phenylbutazone. (b) 
                        *Sponsors*. See sponsor numbers in § 510.600(c) of this chapter. (1) No. 027053 for use of product described in paragraph (a)(1) of this section. (2) No. 057699 for use of product described in paragraph (a)(2) of this section. (c) 
                        *Conditions of use in horses*
                        —(1) 
                        *Amount*. Administer 1 to 2 g (1 to 2 level scoops, using the scoop provided) per 500 pounds of body weight on a small amount of palatable feed, not exceed 4 g per animal daily. (2) 
                        *Indications for use.*
                         For the relief of inflammatory conditions associated with the musculosketetal system. (3) 
                        *Limitations*. Do not use in horses intended for human consumption. Federal law prohibits the extralabel use of this product in female cattle 20 months of age or older. Federal law restricts this drug to use by or on the order of a licensed veterinarian. Dated: May 7, 2007. Bernadette Dunham, Deputy Director, Center for Veterinary Medicine.


[FR Doc. E7-9559 Filed 5-17-07; 8:45 am] BILLING CODE 4160-01-S