# New Animal Drugs For Use In Animal Feeds; Bacitracin Methylene Disalicylate and Chlortetracycline
> **Food and Drug Administration** · Final rule. · Published 1998-08-19 · Effective 1998-08-19 · 63 FR 44385
## Document
- **Document number:** 98-22227
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 63 FR 44385
- **CFR reference:** 21 CFR 558
- **Publication date:** 1998-08-19
- **Effective date:** 1998-08-19
## 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 using approved single ingredient bacitracin methylene disalicylate (BMD) and chlortetracycline (CTC) Type A medicated articles to make Type B medicated feeds used to make Type C medicated swine feeds.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/08/19/98-22227/new-animal-drugs-for-use-in-animal-feeds-bacitracin-methylene-disalicylate-and-chlortetracycline)
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