# New Animal Drugs for Use in Animal Feeds; Withdrawal of Approval of New Animal Drug Applications; Bambermycins; Hygromycin B; Lincomycin; Pyrantel; Tylosin; Tylosin and Sulfamethazine; Virginiamycin
> **Food and Drug Administration** · Final rule; technical amendment. · Published 2014-04-10 · Effective 2014-04-21 · 79 FR 19814
## Document
- **Document number:** 2014-08011
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 79 FR 19814
- **CFR reference:** 21 CFR 510
- **Publication date:** 2014-04-10
- **Effective date:** 2014-04-21
- **HHS docket:** Docket No. FDA-2014-N-0002
## Abstract

The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect the withdrawal of approval of 19 new animal drug applications (NADAs) for certain Type A medicated articles and Type B medicated feeds. This action is being taken at the sponsors' request because these products are no longer manufactured or marketed.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/04/10/2014-08011/new-animal-drugs-for-use-in-animal-feeds-withdrawal-of-approval-of-new-animal-drug-applications)
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