# New Animal Drugs for Use in Animal Feeds; Clopidol and Bacitracin Zinc With Roxarsone
> **Food and Drug Administration** · Final rule. · Published 1997-11-21 · Effective 1997-11-21 · 62 FR 62243
## Document
- **Document number:** 97-30564
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 62 FR 62243
- **CFR reference:** 21 CFR 558
- **Publication date:** 1997-11-21
- **Effective date:** 1997-11-21
## Abstract

The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect approval of an abbreviated new animal drug application (ANADA) filed by Alpharma Inc. The abbreviated NADA provides for using approved clopidol, bacitracin zinc, and roxarsone Type A medicated articles to make Type C medicated broiler chicken feeds used for prevention of coccidiosis, improved feed efficiency, improved pigmentation, and increased rate of weight gain.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1997/11/21/97-30564/new-animal-drugs-for-use-in-animal-feeds-clopidol-and-bacitracin-zinc-with-roxarsone)
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