# New Animal Drugs; Ceftiofur
> **Food and Drug Administration** · Final rule. · Published 2006-07-13 · Effective 2006-07-13 · 71 FR 39544
## Document
- **Document number:** E6-10973
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 71 FR 39544
- **CFR reference:** 21 CFR 522
- **Publication date:** 2006-07-13
- **Effective date:** 2006-07-13
## Abstract

The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect approval of four supplemental new animal drug applications (NADAs) filed by Pharmacia & Upjohn Co. The supplemental NADAs establish or revise preslaughter withdrawal periods in cattle injected with a solution made from ceftiofur sodium powder or with a suspension of ceftiofur hydrochloride, or receiving an intramammary infusion of ceftiofur hydrochloride.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/07/13/E6-10973/new-animal-drugs-ceftiofur)
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