# New Animal Drugs For Use in Animal Feeds; Ractopamine
> **Food and Drug Administration** · Final rule. · Published 2007-12-13 · Effective 2007-12-13 · 72 FR 70776
## Document
- **Document number:** E7-24145
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 72 FR 70776
- **CFR reference:** 21 CFR 558
- **Publication date:** 2007-12-13
- **Effective date:** 2007-12-13
## 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 an increased level of monensin in three-way combination Type C medicated feeds containing ractopamine, melengestrol, and monensin for heifers fed in confinement for slaughter.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2007/12/13/E7-24145/new-animal-drugs-for-use-in-animal-feeds-ractopamine)
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