# Implantation or Injectable Dosage Form New Animal Drugs; Ceftiofur Crystalline Free Acid
> **Food and Drug Administration** · Final rule. · Published 2010-01-29 · Effective 2010-01-29 · 75 FR 4692
## Document
- **Document number:** 2010-1790
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 75 FR 4692
- **CFR reference:** 21 CFR 522
- **Publication date:** 2010-01-29
- **Effective date:** 2010-01-29
- **HHS docket:** Docket No. FDA-2010-N-0002
## 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 Pharmacia & Upjohn Co., a Division of Pfizer, Inc. The supplemental NADA provides for veterinarian prescription use of ceftiofur crystalline free acid injectable suspension for the treatment of lower respiratory tract infections in horses.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/01/29/2010-1790/implantation-or-injectable-dosage-form-new-animal-drugs-ceftiofur-crystalline-free-acid)
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