# New Animal Drugs for Use in Animal Feeds; Melengestrol, Monensin, and Ractopamine
> **Food and Drug Administration** · Final rule. · Published 2010-04-22 · Effective 2010-04-22 · 75 FR 20917
## Document
- **Document number:** 2010-9304
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 75 FR 20917
- **CFR reference:** 21 CFR 558
- **Publication date:** 2010-04-22
- **Effective date:** 2010-04-22
- **HHS docket:** Docket No. FDA-2010-N-0002
## Abstract

The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect approval of a supplemental abbreviated new animal drug application (ANADA) filed by Ivy Laboratories, Div. of Ivy Animal Health, Inc. 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/2010/04/22/2010-9304/new-animal-drugs-for-use-in-animal-feeds-melengestrol-monensin-and-ractopamine)
---
*AI Analytics · CC0 1.0*