# New Animal Drugs for Use in Animal Feeds; Tiamulin
> **Food and Drug Administration** · Final rule. · Published 2012-04-17 · Effective 2012-04-17 · 77 FR 22667
## Document
- **Document number:** 2012-9196
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 77 FR 22667
- **CFR reference:** 21 CFR 558
- **Publication date:** 2012-04-17
- **Effective date:** 2012-04-17
- **HHS docket:** Docket No. FDA-2012-N-0002
## Abstract

The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect the withdrawal of approval of those parts of a new animal drug application (NADA) for a tiamulin Type A medicated article that pertain to the production indications for use of increased rate of weight gain and improved feed efficiency in swine.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/04/17/2012-9196/new-animal-drugs-for-use-in-animal-feeds-tiamulin)
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