# Isoflurane.
**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 an abbreviated new animal drug application (ANADA) for isoflurane, U.S.P., from Rhodia UK Ltd. to Nicholas Piramal India Ltd. UK.
**DATES:**
This rule is effective August 3, 2006.
**FOR FURTHER INFORMATION CONTACT:**
David R. Newkirk, Center for Veterinary Medicine (HFV-100), Food and Drug Administration, 7500 Standish Pl., Rockville, MD 20855, 301-827-6967, e-mail: *[email protected]* .
**SUPPLEMENTARY INFORMATION:**
Rhodia UK Ltd., P.O. Box 46, St. Andrews Rd., Avonmouth, Bristol BS11 9YF, England, UK, has informed FDA that it has transferred ownership of, and all rights and interest in, ANADA 200-237 for isoflurane, U.S.P., to Nicholas Piramal India Ltd. UK, 1st Floor, Alpine House, Unit II, Honeypot Lane, London, NW99RX, England, UK. Accordingly, the regulations are amended in 21 CFR 529.1186 to reflect this change of sponsorship and a current format.
Following these changes of sponsorship, Rhodia UK Ltd. is no longer the sponsor of an approved application. In addition, Nicholas Piramal India Ltd. UK is not currently listed in the animal drug regulations as a sponsor of an approved application. Accordingly, 21 CFR 510.600(c) is being amended to remove the entries for Rhodia UK Ltd. to add entries for Nicholas Piramal India Ltd. UK.
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.
**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 and 529 are amended as follows:
**PART 510—NEW ANIMAL DRUGS**
**21 CFR Part 510**
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. In § 510.600, in the table in paragraph (c)(1), alphabetically add an entry for “Nicholas Piramal India Ltd. UK” and remove the entry for “Rhodia UK Limited”; and in the table in paragraph (c)(2) remove the entry for “059258” and numerically add an entry for “066112” to read as follows:
§ 510.600
(c) * * *
(1) * * *
| Firm name and address | Drug labeler code |
| --- | --- |
| * * * * * | |
| Nicholas Piramal India Ltd. UK, 1st Floor, Alpine House, Unit II, Honeypot Lane, London, NW99RX, England, UK | 066112 |
| * * * * * | |
(2) * * *
| Drug labeler code | Firm name and address |
| --- | --- |
| * * * * * | |
| 066112 | Nicholas Piramal India Ltd. UK, 1st Floor, Alpine House, Unit II, Honeypot Lane, London, NW99RX, England, UK |
| * * * * * | |
**21 CFR Part 529**
**PART 529—OTHER DOSAGE FORM NEW ANIMAL DRUGS**
3. The authority citation for 21 CFR part 529 continues to read as follows:
**Authority:**
21 U.S.C. 360b.
**21 CFR Part 529**
4. In § 529.1186, in paragraph (b), remove “059258” and numerically add “066112”; and revise paragraph (a), the introductory text of paragraph (c), and paragraph (c)(3) to read as follows:
§ 529.1186
(a) *Specifications* . The drug is a clear, colorless, stable liquid.
(c) *Conditions of use* . Administer by inhalation:
(3) *Limitations* . Do not use in horses intended for human consumption. Federal law restricts this drug to use by or on the order of a licensed veterinarian.
Dated: July 24, 2006.
Bernadette A. Dunham,
Deputy Director, Office of New Animal Drug Evaluation, Center for Veterinary Medicine.