# Implantation or Injectable Dosage Form New Animal Drugs; Ivermectin and Clorsulon Injection
> **Food and Drug Administration** · Final rule. · Published 2004-06-07 · Effective 2004-06-07 · 69 FR 31734
## Document
- **Document number:** 04-12717
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 69 FR 31734
- **CFR reference:** 21 CFR 522
- **Publication date:** 2004-06-07
- **Effective date:** 2004-06-07
## 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 Merial Ltd. The supplemental NADA provides for an increased period of protection from reinfection with three species of internal parasites following administration of an ivermectin and clorsulon injectable solution to cattle.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/06/07/04-12717/implantation-or-injectable-dosage-form-new-animal-drugs-ivermectin-and-clorsulon-injection)
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