# Ophthalmic and Topical Dosage Form New Animal Drugs; Copper Naphthenate Solution
> **Food and Drug Administration** · Final rule. · Published 2003-09-29 · Effective 2003-09-29 · 68 FR 55825
## Document
- **Document number:** 03-24495
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 68 FR 55825
- **CFR reference:** 21 CFR 524
- **Publication date:** 2003-09-29
- **Effective date:** 2003-09-29
## 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 First Priority, Inc. The ANADA provides for topical use of copper naphthenate solution on horses and ponies as an aid in treating thrush caused by organisms susceptible to copper naphthenate.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2003/09/29/03-24495/ophthalmic-and-topical-dosage-form-new-animal-drugs-copper-naphthenate-solution)
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