# New Animal Drugs for Use in Animal Feeds; Lasalocid and Bacitracin Methylene Disalicylate
> **Food and Drug Administration** · Final rule. · Published 2003-03-31 · Effective 2003-03-31 · 68 FR 15370
## Document
- **Document number:** 03-7535
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 68 FR 15370
- **CFR reference:** 21 CFR 558
- **Publication date:** 2003-03-31
- **Effective date:** 2003-03-31
## 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 Alpharma, Inc. The supplemental NADA provides for a 0-day withdrawal period for the use of approved two-way combination drug Type C medicated feeds containing lasalocid and bacitracin methylene disalicylate in broiler and fryer chickens.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2003/03/31/03-7535/new-animal-drugs-for-use-in-animal-feeds-lasalocid-and-bacitracin-methylene-disalicylate)
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