# Implantation or Injectable Dosage Form New Animal Drugs; Trenbolone and Estradiol
> **Food and Drug Administration** · Final rule. · Published 2004-01-06 · Effective 2004-01-06 · 69 FR 500
## Document
- **Document number:** 04-131
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 69 FR 500
- **CFR reference:** 21 CFR 522
- **Publication date:** 2004-01-06
- **Effective date:** 2004-01-06
## 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 Fort Dodge Animal Health, Division of Wyeth. The ANADA provides for use of three different strength trenbolone acetate and estradiol implants in cattle.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/01/06/04-131/implantation-or-injectable-dosage-form-new-animal-drugs-trenbolone-and-estradiol)
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