# [Amended]
**AGENCY:**
Food and Drug Administration, HHS.
**ACTION:**
Final rule.
**SUMMARY:**
The Food and Drug Administration (FDA) is amending the animal drug regulations to remove those portions that reflect approval of 11 new animal drug applications (NADAs) listed below. In a notice published elsewhere in this issue of the *Federal Register* , FDA is withdrawing approval of the NADAs.
**DATES:**
This rule is effective May 21, 2001.
**FOR FURTHER INFORMATION CONTACT:**
Pamela K. Esposito, Center for Veterinary Medicine (HFV-210), Food and Drug Administration, 7500 Standish Pl., Rockville, MD 20855, 301-827-5593.
**SUPPLEMENTARY INFORMATION:**
The following sponsors have requested that FDA withdraw approval of the NADAs listed below because the products are no longer manufactured or marketed:
| Sponsor | NADA Number Product | 21 CFR Cite Affected |
| --- | --- | --- |
| Purina Mills, Inc., P.O. Box 66812, St. Louis, MO 63166-6812 | NADA 48-915 Purina® Bot Control (trichlorfon) | 520.2520a (017800) |
| Golden Sun Feeds, Inc., 111 South Fifth St., Estherville, IA 51334 | NADA 97-567 Tylan® 10 Premix (tylosin phosphate) | 558.625(b)(17) (021780) |
| | NADA 97-615 Swine Med-A-Mix TS 8000 Premix, Tylan® 5, 10, 20, 40 Sulfa-G (tylosin phosphate and sulfamethazine) | 558.630(b)(4) and (b)(10) (021780) |
| Quali-Tech Products, Inc., 318 Lake Hazeltine Dr., Chaska, MN 55318-1093 | NADA 110-440 Hygromix Hygrowormer Hyanthelmix (hygromycin B) | 558.274(a)(2), (a)(3), (a)(4), (c)(1)(i), and (c)(1)(ii) (016968) |
| Steris Laboratories Inc., 620 North 51st Ave., Phoenix, AZ 85043-4705 | NADA 45-578 Lidocaine Hydrochloride With Epinephrine Injection 2% | 522.1258 (000402) |
| | NADA 44-585 Oxytocin Injection | 522.1680 (000402) |
| | NADA 45-737 Sodium Pentobarbital Injection | 522.1704(b) (000402) |
| | NADA 45-848 Phenylbutazone Injection | 522.1720 (000402) |
| | NADA 110-349 Dexamethasone Injection | 522.540(c)(2) (000402) |
| | NADA 110-350 Dexamethasone Injection | 522.540(b)(2)(ii) (000402) |
| | NADA 117-973 Prednisolone Sodium Succinate for Injection | 522.1884(c) (000402) |
Following the withdrawal of approval of these NADAs, Golden Sun Feeds, Inc., is no longer the sponsor of any approved applications. Therefore, 21 CFR 510.600(c) is amended to remove entries for the sponsor.
Steris Laboratories currently has another approved application for dexamethasone injection (NADA 104-606). Therefore, the regulation is not amended to reflect the withdrawal of approval of NADA 110-349 (dexamethasone injection).
Steris Laboratories NADA 44-585 oxytocin injection is not codified under 21 CFR 522.1680 oxytocin injection. Also, Steris Laboratories NADA 45-848 phenylbutazone injection is not codified under 21 CFR 522.1720 phenylbutazone injection. Therefore, amendments of the cited regulations are not required.
As provided below, the animal drug regulations are amended to reflect the withdrawal of approvals.
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.
Animal drugs.
Animal drugs, Animal feeds.
**21 CFR Part 510, 520, 522, 558**
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, 522, and 558 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.
§ 510.600
2. Section 510.600 *Names, addresses, and drug labeler codes of sponsors of approved applications* is amended in the table in paragraph (c)(1) by removing the entry “Golden Sun Feeds, Inc.”, and in the table in paragraph (c)(2) by removing the entry “021780”.
**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.
§ 520.2520a
4. Section 520.2520a *Trichlorfon oral* is removed.
**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.
§ 522.1258
6. Section 522.1258 *Lidocaine injection with epinephrine* is removed.
§ 522.1704
7. Section 522.1704 *Sodium pentobarbital injection* is amended by removing and reserving paragraph (b).
§ 522.1884
8. Section 522.1884 *Prednisolone sodium succinate injection* is amended by removing the second sentence of paragraph (c) and by removing paragraph (d)(2)(iv).
**PART 558—NEW ANIMAL DRUGS FOR USE IN ANIMAL FEEDS**
9. The authority citation for 21 CFR part 558 continues to read as follows:
**Authority:**
21 U.S.C. 360b, 371.
§ 558.274
10. Section 558.274 *Hygromycin B* is amended as follows:
a. In paragraph (a)(2) by removing “016968 and”;
b. By removing and reserving paragraph (a)(3);
c. In paragraph (a)(4) by removing “016968,”;
d. In the table in paragraph (c)(1) in the fifth column of the first entry in items (i) and (ii) by removing “016968,”.
§ 558.625
11. Section 558.625 *Tylosin* is amended by removing and reserving paragraph (b)(17).
§ 558.630
12. Section 558.630 *Tylosin and sulfamethazine* is amended by removing and reserving paragraph (b)(4), and in paragraph (b)(10) by removing “021780,”.
Dated: May 2, 2001.
Stephen F. Sundlof,
Director, Center for Veterinary Medicine.