# New Animal Drugs; Chloramphenicol, Diethylcarbamazine Citrate, Hygromycin B, Methoxyflurane, Neomycin Sulfate, Penicillin G, Phenylbutazone, Pyrantel Tartrate, Tylosin Phosphate, and Sulfamethazine
> **Food and Drug Administration** · Final rule. · Published 2012-02-01 · Effective 2012-02-13 · 77 FR 4895
## Document
- **Document number:** 2012-2103
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 77 FR 4895
- **CFR reference:** 21 CFR 510
- **Publication date:** 2012-02-01
- **Effective date:** 2012-02-13
- **HHS docket:** Docket No. FDA-2011-N-0003
## Abstract

The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect the withdrawal of approval of 20 new animal drug applications (NADAs).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/02/01/2012-2103/new-animal-drugs-chloramphenicol-diethylcarbamazine-citrate-hygromycin-b-methoxyflurane-neomycin)
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