# New Animal Drugs; Withdrawal of Approval of a New Animal Drug Application
**AGENCY:**
Food and Drug Administration, HHS.
**ACTION:**
Notification of withdrawal.
**SUMMARY:**
The Food and Drug Administration (FDA) is withdrawing approval of a new animal drug application (NADA) and an abbreviated new animal drug application (ANADA) at the sponsors' requests because the products are no longer manufactured or marketed.
**DATES:**
Withdrawal of approval is effective March 13, 2017.
**FOR FURTHER INFORMATION CONTACT:**
Sujaya Dessai, Center for Veterinary Medicine (HFV-212), Food and Drug Administration, 7519 Standish Pl., Rockville, MD 20855, 240-402-5761, *[email protected]* .
**SUPPLEMENTARY INFORMATION:**
The sponsors of the following applications have requested that FDA withdraw approval of the NADA and ANADA listed in the following table because the products are no longer manufactured or marketed:
| File No. | Sponsor | Product name | 21 CFR |
| --- | --- | --- | --- |
| 135-773 | Baxter Healthcare Corp., One Baxter Pkwy., Deerfield, IL 60015 | AERRANE (isoflurane USP) | 529.1186 |
| 200-421 | Hospira, Inc., 275 North Field Dr., Lake Forest, IL 60045 | Ceftiofur (ceftiofur Na) for Injection | 522.313c |
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notice is given that approval of NADA 135-773 and ANADA 200-421, and all supplements and amendments thereto, is hereby withdrawn, effective March 13, 2017.
Elsewhere in this issue of the *Federal Register* , FDA is amending the animal drug regulations to reflect the voluntary withdrawal of approval of these applications.
Dated: February 23, 2017.
Leslie Kux,
Associate Commissioner for Policy.