# Implantation or Injectable Dosage Form New Animal Drugs; Ivermectin
> **Food and Drug Administration** · Final rule. · Published 2007-11-07 · Effective 2007-11-07 · 72 FR 62771
## Document
- **Document number:** E7-21839
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 72 FR 62771
- **CFR reference:** 21 CFR 522
- **Publication date:** 2007-11-07
- **Effective date:** 2007-11-07
## Abstract

The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect approval of a supplemental abbreviated new animal drug application (ANADA) filed by Norbrook Laboratories, Ltd. The supplemental ANADA adds claims for persistent effectiveness against various species of external and internal parasites when cattle are treated with a one percent ivermectin solution by subcutaneous injection.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2007/11/07/E7-21839/implantation-or-injectable-dosage-form-new-animal-drugs-ivermectin)
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