# New Animal Drugs for Use in Animal Feeds; Zilpaterol
> **Food and Drug Administration** · Final rule. · Published 2010-03-11 · Effective 2010-03-11 · 75 FR 11451
## Document
- **Document number:** 2010-5224
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 75 FR 11451
- **CFR reference:** 21 CFR 558
- **Publication date:** 2010-03-11
- **Effective date:** 2010-03-11
- **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 three abbreviated new animal drug applications (ANADAs) filed by Ivy Laboratories, Div. of Ivy Animal Health, Inc. The ANADAs provides for use of single-ingredient Type A medicated articles containing zilpaterol, melengestrol, monensin, and tylosin to make two-way, three-way, and four-way combination drug Type B and Type C medicated feeds for heifers fed in confinement for slaughter.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/03/11/2010-5224/new-animal-drugs-for-use-in-animal-feeds-zilpaterol)
---
*AI Analytics · CC0 1.0*