# Withdrawal of Approval of New Animal Drug Applications; Quali-Tech Products, Inc.; Bambermycins; Pyrantel; Tylosin; Virginiamycin
> **Food and Drug Administration** · Final rule. · Published 2013-08-23 · Effective 2013-09-03 · 78 FR 52430
## Document
- **Document number:** 2013-20616
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 78 FR 52430
- **CFR reference:** 21 CFR 510
- **Publication date:** 2013-08-23
- **Effective date:** 2013-09-03
- **HHS docket:** Docket No. FDA-2013-N-0002
## Abstract

The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect the withdrawal of approval of four new animal drug applications (NADAs), held by Quali-Tech Products, Inc., at the sponsor's request because the products are no longer manufactured or marketed.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/08/23/2013-20616/withdrawal-of-approval-of-new-animal-drug-applications-quali-tech-products-inc-bambermycins-pyrantel)
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