# New Animal Drugs for Use in Animal Feeds; Oxytetracycline; Neomycin
> **Food and Drug Administration** · Final rule. · Published 2009-08-13 · Effective 2009-08-13 · 74 FR 40723
## Document
- **Document number:** E9-19414
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 74 FR 40723
- **CFR reference:** 21 CFR 558
- **Publication date:** 2009-08-13
- **Effective date:** 2009-08-13
- **HHS docket:** Docket No. FDA-2009-N-0665
## Abstract

The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect approval of a supplemental new animal drug application (NADA) filed by Pennfield Oil Co. The supplemental NADA provides for the use of fixed-combination Type A medicated articles containing oxytetracycline and neomycin sulfate to formulate two-way, fixed-combination drug Type B and Type C medicated feeds for chickens, turkeys, swine, cattle, and sheep. This approval reflects FDA's effectiveness conclusions which relied on the National Academy of Sciences/National Research Council (NAS/NRC) Drug Efficacy Study Group's evaluation of the effectiveness of these drugs when used in animal feed as single ingredients.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/08/13/E9-19414/new-animal-drugs-for-use-in-animal-feeds-oxytetracycline-neomycin)
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