# New Animal Drugs For Use in Animal Feeds; Monensin
> **Food and Drug Administration** · Final rule. · Published 2006-01-11 · Effective 2006-01-11 · 71 FR 1689
## Document
- **Document number:** 06-228
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 71 FR 1689
- **CFR reference:** 21 CFR 558
- **Publication date:** 2006-01-11
- **Effective date:** 2006-01-11
## 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 provides for use of monensin Type C medicated feeds in component feeding systems (including top dress) for increased milk production efficiency in dairy cows.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/01/11/06-228/new-animal-drugs-for-use-in-animal-feeds-monensin)
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