# Withdrawal of Approval of New Animal Drug Applications; Coumaphos; Novobiocin; Buquinolate and Lincomycin
**AGENCY:**
Food and Drug Administration, HHS.
**ACTION:**
Notice.
**SUMMARY:**
The Food and Drug Administration (FDA) is withdrawing approval of three new animal drug applications (NADAs). In a final rule published elsewhere in this issue of the *Federal Register* , FDA is amending the animal drug regulations to remove portions reflecting approval of the single NADA of the three that is codified.
**DATES:**
Withdrawal of approval is effective May 17, 2010.
**FOR FURTHER INFORMATION CONTACT:**
John Bartkowiak, Center for Veterinary Medicine (HFV-212), Food and Drug Administration, 7519 Standish Pl., Rockville, MD 20855, 240-276-9079, e-mail: *[email protected]* .
**SUPPLEMENTARY INFORMATION:**
The following sponsors have requested that FDA withdraw approval of the three NADAs listed in Table 1:
| Sponsor | NADA No./Product | 21 CFR Cite |
| --- | --- | --- |
| Pharmacia & Upjohn Co., a Division of Pfizer, Inc., 235 East 42d St., New York, NY 10017 | NADA 13-467/ALBAMIX Susceptibility Disks | Not codified |
| Pharmacia & Upjohn Co., a Division of Pfizer, Inc., 235 East 42d St., New York, NY 10017 | NADA 45-738/LINCOMIX/BONAID | Not codified |
| Purina Mills, Inc., P.O. Box 66812, St. Louis, MO 63166-6812 | NADA 42-117/Purina 6 Day Worm-Kill Concentrate | 558.185 (017800) |
Therefore, under authority delegated to the Commissioner of Food and Drugs and redelegated to the Center for Veterinary Medicine, and in accordance with § 514.116 *Notice of withdrawal of approval of application* (21 CFR 514.116), notice is given that approval of NADAs 13-467, 42-117, and 45-738, and all supplements and amendments thereto, is hereby withdrawn, effective May 17, 2010.
In a final rule published elsewhere in this issue of the *Federal Register* , FDA is amending the animal drug regulations to reflect the withdrawal of approval of NADA 42-117.
Dated: April 30, 2010.
Bernadette Dunham,
Director, Center for Veterinary Medicine.