# New Animal Drugs for Use in Animal Feeds; Lasalocid
> **Food and Drug Administration** · Final rule. · Published 1997-05-27 · Effective 1997-05-27 · 62 FR 28630
## Document
- **Document number:** 97-13825
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 62 FR 28630
- **CFR reference:** 21 CFR 558
- **Publication date:** 1997-05-27
- **Effective date:** 1997-05-27
## 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 Hoffmann-La Roche, Inc. The supplemental NADA provides for removal of the international feed number (IFN) for an ingredient in free-choice, lasalocid, liquid Type C feed.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1997/05/27/97-13825/new-animal-drugs-for-use-in-animal-feeds-lasalocid)
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