# New Animal Drugs For Use in Animal Feed; Zilpaterol
> **Food and Drug Administration** · Final rule. · Published 2008-02-01 · Effective 2008-02-01 · 73 FR 6018
## Document
- **Document number:** E8-1903
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 73 FR 6018
- **CFR reference:** 21 CFR 558
- **Publication date:** 2008-02-01
- **Effective date:** 2008-02-01
## Abstract

The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect approval of a new animal drug application (NADA) filed by Intervet, Inc. The NADA provides for use of zilpaterol, monensin, and tylosin in three-way combination Type B and Type C medicated feeds for cattle fed in confinement for slaughter.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2008/02/01/E8-1903/new-animal-drugs-for-use-in-animal-feed-zilpaterol)
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