# New Animal Drugs; Altrenogest
> **Food and Drug Administration** · Final rule. · Published 2003-10-31 · Effective 2003-10-31 · 68 FR 62006
## Document
- **Document number:** 03-27390
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 68 FR 62006
- **CFR reference:** 21 CFR 520
- **Publication date:** 2003-10-31
- **Effective date:** 2003-10-31
## Abstract

The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect approval of a new animal drug application (NADA) filed by Intervet, Inc. The NADA provides for use of an altrenogest oral solution in gilts for synchronization of estrus.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2003/10/31/03-27390/new-animal-drugs-altrenogest)
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