# Certain Other Dosage Form New Animal Drugs; Progesterone Intravaginal Inserts
> **Food and Drug Administration** · Final rule. · Published 2003-10-06 · Effective 2003-10-06 · 68 FR 57613
## Document
- **Document number:** 03-25249
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 68 FR 57613
- **CFR reference:** 21 CFR 529
- **Publication date:** 2003-10-06
- **Effective date:** 2003-10-06
## 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. The supplemental NADA provides for use of progesterone intravaginal inserts for synchronization of the return to estrus in lactating dairy cows inseminated at the immediately preceding estrus.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2003/10/06/03-25249/certain-other-dosage-form-new-animal-drugs-progesterone-intravaginal-inserts)
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