# [Amended]
**AGENCY:**
Food and Drug Administration, HHS.
**ACTION:**
Final rule.
**SUMMARY:**
The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect a change of sponsor for two approved new animal drug applications (NADA's) from Wendt Laboratories, Inc., to First Priority, Inc.
**DATES:**
This rule is effective March 19, 2001.
**FOR FURTHER INFORMATION CONTACT:**
Norman J. Turner, Center for Veterinary Medicine (HFV-102), Food and Drug Administration, 7500 Standish Pl., Rockville, MD 20855, 301-827-0214.
**SUPPLEMENTARY INFORMATION:**
Wendt Laboratories, Inc., 100 Nancy Dr., Belle Plaine, MN 56011, has informed FDA that it has transferred to First Priority, Inc., 1585 Todd Farm Dr., Elgin, IL 60123, ownership of, and all rights and interests in NADA 48-646 for Therazone Injection and NADA 48-647 for Therazone Tablets. Accordingly, the agency is amending the regulations in 21 CFR 520.1720a and 522.1720 to reflect the transfer of ownership.
In addition, First Priority, 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.
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**
Administrative practice and procedure, Animal drugs, Labeling, Reporting and recordkeeping requirements.
**21 CFR Parts 520 and 522**
Animal drugs.
**21 CFR Part 510**
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, 520, and 522 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.
**21 CFR Part 510**
2. Section 510.600 is amended in the table in paragraph (c)(1) by alphabetically adding an entry for “First Priority, Inc.” and in the table in paragraph (c)(2) by numerically adding an entry for “058829” to read as follows:
§ 510.600
(c) * * *
(1) * * *
| Firm name and address | Drug labeler code |
| --- | --- |
| | * * * * * * * |
| First Priority, Inc., 1585 Todd Farm Dr., Elgin, IL 60123 | 058829 |
| | * * * * * * * |
(2) * * *
| Drug labeler code | Firm name and address |
| --- | --- |
| | * * * * * * * |
| 058829 | First Priority, Inc., 1585 Todd Farm Dr., Elgin, IL 60123. |
| | * * * * * * * |
**21 CFR Part 520**
**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.
§ 520.1720a
**21 CFR Part 520**
4. Section 520.1720a *Phenylbutazone tablets and boluses* is amended in paragraph (b)(3) by removing “015579” and adding in its place “058829”.
**21 CFR Part 522**
**PART 522—IMPLANTATION OR INJECTABLE DOSAGE FORM NEW ANIMAL DRUGS**
5. The authority citation for 21 CFR part 522 continues to read as follows:
**Authority:**
21 U.S.C. 360b.
§ 522.1720
**21 CFR Part 522**
6. Section 522.1720 *Phenylbutazone injection* is amended in paragraph (b)(1) by removing “015579” and adding in its place “058829”.
Dated: February 9, 2001.
Claire M. Lathers,
Director, Office of New Animal Drug Evaulation, Center for Veterinary Medicine.