# New Animal Drugs For Use in Animal Feeds; Monensin
> **Food and Drug Administration** · Final rule. · Published 2007-12-05 · Effective 2007-12-05 · 72 FR 68478
## Document
- **Document number:** E7-23519
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 72 FR 68478
- **CFR reference:** 21 CFR 558
- **Publication date:** 2007-12-05
- **Effective date:** 2007-12-05
## 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 Elanco Animal Health. The supplemental NADA revises the concentration of monensin in two-way Type B and Type C medicated feeds containing monensin and tylosin to cattle fed in confinement for slaughter and a revision to bacterial pathogen nomenclature.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2007/12/05/E7-23519/new-animal-drugs-for-use-in-animal-feeds-monensin)
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