# Implantation or Injectable Dosage Form New Animal Drugs; Gonadotropin Releasing Factor-Diphtheria Toxoid Conjugate
> **Food and Drug Administration** · Final rule. · Published 2011-05-13 · Effective 2011-05-13 · 76 FR 27888
## Document
- **Document number:** 2011-11762
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 76 FR 27888
- **CFR reference:** 21 CFR 522
- **Publication date:** 2011-05-13
- **Effective date:** 2011-05-13
- **HHS docket:** Docket No. FDA-2011-N-0003
## 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 Pfizer, Inc. The NADA provides for the veterinary prescription use of gonadotropin releasing factor-diphtheria toxoid conjugate by subcutaneous injection for temporary immunological castration (suppression of testicular function) and reduction of boar taint in intact male pigs intended for slaughter.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/05/13/2011-11762/implantation-or-injectable-dosage-form-new-animal-drugs-gonadotropin-releasing-factor-diphtheria)
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