# 2026-12685: FDA Issues Global Deworming Rules Just for Cats

2026-12685, International Cooperation on Harmonisation of Technical Requirements for Registration of Veterinary Medicinal Products; Effectiveness of Anthelmintics: Specific Recommendations for Felines; Guidance for Industry; Availability, is a Federal Register notice from Health and Human Services Department, Food and Drug Administration published 2026-06-24, effective 2026-06-24; PRIA reads it as touching household money (as of 2026-07-01).

- Canonical: https://policyrisk.com/federal-register/2026-12685
- As of: 2026-07-01
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-12685
- Title: International Cooperation on Harmonisation of Technical Requirements for Registration of Veterinary Medicinal Products; Effectiveness of Anthelmintics: Specific Recommendations for Felines; Guidance for Industry; Availability
- Type: Notice
- Agencies: Health and Human Services Department; Food and Drug Administration
- Citation: 91 FR 38003
- Published: 2026-06-24
- Effective: 2026-06-24
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: none
- Last updated: 2026-07-01

## In one line

FDA Issues Global Deworming Rules Just for Cats

## Summary

The FDA just released new guidance to help vets and drug makers prove how well deworming medicines work for cats. This makes it easier to get these medicines approved worldwide by using the same testing rules. If you’re in the pet medicine business, this update helps speed up approvals and keeps our feline friends healthier—starting now!

## Abstract

The Food and Drug Administration (FDA or Agency) is announcing the availability of a final guidance for industry (GFI) #113 entitled "Effectiveness of Anthelmintics: Specific Recommendations for Felines." This guidance has been developed for veterinary use by the International Cooperation on Harmonisation of Technical Requirements for Registration of Veterinary Medicinal Products (VICH). The objective of this guidance is to provide study design recommendations specific to felines that will facilitate the universal acceptance of the generated effectiveness data to fulfill the national/regional requirements for anthelmintic drugs in animal species.

## Effects PRIA read

- Harmonized study rules for cat dewormers: benefit, medium. FDA issued final Guidance for Industry #113 (VICH GL20) on June 24, 2026 with study design recommendations specific to feline anthelmintics. The guidance is intended to facilitate the universal acceptance of generated effectiveness data so that national and regional regulators can use the same data…
- Guidance is advisory, alternatives allowed: benefit, low. The guidance represents the FDA's current thinking on effectiveness of feline anthelmintics but is not binding. It explicitly states you may use an alternative approach if it satisfies applicable statutes and regulations and was issued consistent with FDA's good guidance practices (21 CFR 10.115).
- No new paperwork or data collection: benefit, low. The guidance contains no new collection of information and refers to previously approved collections under 21 CFR part 514 (OMB control number 0910-0032). As stated, the guidance does not create additional Paperwork Reduction Act obligations.

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## Sources
- [2026-12685 on federalregister.gov](https://www.federalregister.gov/documents/2026/06/24/2026-12685/international-cooperation-on-harmonisation-of-technical-requirements-for-registration-of-veterinary)
- [2026-12685 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-06-24/pdf/2026-12685.pdf)

## Related
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- [Next: 2026-12686, International Cooperation on Harmonisation of Technical Requirements for Regist…](https://policyrisk.com/federal-register/2026-12686)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-12685 (as of 2026-07-01).