FDA Issues Global Deworming Rules Just for Cats
Published Date: 6/24/2026
Notice
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!
Analyzed Economic Effects
3 provisions identified: 3 benefits, 0 costs, 0 mixed.
Harmonized study rules for cat dewormers
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 to meet approval requirements; the guideline was endorsed by regulatory agencies in October 2024.
Guidance is advisory, alternatives allowed
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
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.
Personalized for You
How does this regulation affect your finances?
Personalize government policy and PRIA will tell you what this federal register document means for your household, plus every other regulation we track. PRIA reads each provision against your financial profile to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Related Federal Register Documents
2026-16296, Substances Generally Recognized as Safe
The Food and Drug Administration (FDA or we) is proposing to require the submission of generally recognized as safe (GRAS) notices for the use of a human or animal food substance purported to be GRAS under the conditions of its intended use under the Federal Food, Drug, and Cosmetic Act (FD&C Act).
2026-14073, Drug Establishment Registration and Drug Listing Requirements for Establishments Engaged in Distributed Manufacturing and Certain Foreign Establishments
The FDA wants to make it easier for drug makers who work in several locations to register as one company instead of many. They’re also updating rules for foreign drug companies to match new laws about handling health threats. If you’re in drug manufacturing, get ready to comment by September 11, 2026, and keep an eye on possible paperwork changes that could affect your business.
2026-13047, Establishment Registration and Product Listing for Tobacco Products
The FDA wants to make sure all tobacco product makers, both in the U.S. and abroad, register their businesses and list their products. This new rule closes a big gap by including foreign companies, helping the FDA keep better track of tobacco products for public health. Comments on this proposal are open until September 14, 2026, so affected businesses should get ready to update their info and possibly face new costs.
2025-01840, Nonprescription Drug Product With an Additional Condition for Nonprescription Use
The FDA’s new rule about nonprescription drugs needing extra conditions before use was set to start on January 27, 2025, but it’s now delayed until March 21, 2025. This delay follows a presidential order to pause and review new rules before they take effect. Drug makers, sellers, and consumers should note the new start date and get ready for the updated rules soon.
2026-19419, Sanjay Kumar: Final Debarment Order
Sanjay Kumar is banned for 5 years from importing any drugs into the U.S. because he was convicted of a serious crime involving fake goods. He didn’t respond to the FDA’s notice, so the ban starts on September 23, 2026. He can apply to end the ban anytime, but must follow special rules to keep info private.
2026-19349, Nonclinical Testing Terminology
The FDA wants to update its rules by swapping out the word “animal” tests for “nonclinical” tests to better reflect modern science. This change affects drug safety testing rules, encourages new testing methods that might use fewer animals, and doesn’t add any new costs or requirements. Anyone interested can comment on these changes until December 7, 2026.
Previous / Next Documents
Previous: 2026-12684, International Cooperation on Harmonisation of Technical Requirements for Registration of Veterinary Medicinal Products; Effectiveness of Anthelmintics: Specific Recommendations for Canines; Guidance for Industry; Availability
The FDA just released new guidance to help companies test worm-killing medicines for dogs. This makes it easier for drug makers worldwide to prove their products work, speeding up approvals and keeping pups healthier. If you’re in the veterinary medicine business, this update could save time and money starting now!
Next: 2026-12686, International Cooperation on Harmonisation of Technical Requirements for Registration of Veterinary Medicinal Products; Effectiveness of Anthelmintics: Specific Recommendations for Chickens-Gallus Gallus; Guidance for Industry; Availability
The FDA just released new guidance to help companies test worm-killing medicines for chickens in a way that’s accepted worldwide. This makes it easier and faster for vets and farmers to get safe, effective treatments approved. If you’re in the animal medicine business, start using these recommendations now to save time and avoid extra costs.