# New Animal Drugs for Use in Animal Feeds; Carbadox
> **Food and Drug Administration** · Final rule. · Published 1998-11-03 · Effective 1998-11-03 · 63 FR 59216
## Document
- **Document number:** 98-29334
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 63 FR 59216
- **CFR reference:** 21 CFR 558
- **Publication date:** 1998-11-03
- **Effective date:** 1998-11-03
## 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 Pfizer Animal Health, Inc. The supplemental NADA provides for the establishment of a 42-day slaughter withdrawal period for use of carbadox in swine feed.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/11/03/98-29334/new-animal-drugs-for-use-in-animal-feeds-carbadox)
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