# Implantation or Injectable Dosage Form New Animal Drugs; Guaifenesin Injection
> **Food and Drug Administration** · Final rule. · Published 1998-05-29 · 63 FR 29352
## Document
- **Document number:** 98-14183
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 63 FR 29352
- **CFR reference:** 21 CFR 522
- **Publication date:** 1998-05-29
## Abstract

The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect approval of an abbreviated new animal drug application (ANADA) filed by Phoenix Scientific, Inc. The ANADA provides for intravenous use of guaifenesin injection in horses as a skeletal muscle relaxant.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/05/29/98-14183/implantation-or-injectable-dosage-form-new-animal-drugs-guaifenesin-injection)
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