FDA Approves New Animal Drugs, Updates Sponsor Details
Published Date: 4/16/2026
Rule
Summary
The FDA updated rules for new animal drugs approved in late 2025, including new approvals, withdrawals, and sponsor changes. These updates affect drug makers, vets, and pet owners by keeping drug info accurate and easy to find. The changes take effect April 16, 2026, with no new costs but clearer drug details and timelines.
Analyzed Economic Effects
3 provisions identified: 2 benefits, 0 costs, 1 mixed.
Multiple New Animal Drugs Approved
The FDA amended animal drug regulations to list approvals issued in October, November, and December 2025. Examples include CREDELIO QUATTRO (supplemental approval, Oct 20, 2025), VERDINEXOR tablets (original conditional approval, Dec 18, 2025), COSACTHEN (cosyntropin injection, original approval, Dec 19, 2025), and others; these approvals are reflected in the Code of Federal Regulations effective April 16, 2026.
Ownership Transfers Recorded for Drug Sponsors
The rule records transfers of ownership and sponsor changes for numerous approved animal drug applications that occurred during October–December 2025 (see Table 2). The CFR entries for affected applications were amended to reflect the new sponsors effective April 16, 2026.
Clearer Dosage, Labeling, and Section Updates
FDA made technical amendments to improve accuracy and readability, including clarifying that dosages in Sec. 522.2100 are in pounds of body weight, adding clearer dosage directions for dogs in Sec. 524.1055h, revising labeling language in Sec. 558.500, adding new drug-specific sections (e.g., Sec. 516.1287 and Sec. 520.2700) with specified milligram strengths and vet-only limits, and removing or adding sponsor entries in Sec. 510.600(c). These changes take effect April 16, 2026.
Your PRIA Score
Personalized for You
How does this regulation affect your finances?
Sign up for a PRIA Policy Scan to see your personalized alignment score for this federal register document and every other regulation we track. We analyze your financial profile against policy provisions to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Related Federal Register Documents
2026-09767 — Oscar Bobo: Final Debarment Order
Oscar Bobo is officially banned for 5 years from importing any drugs into the U.S. because he repeatedly brought in mislabeled medicines that don’t follow FDA rules. He didn’t respond to the FDA’s warning, so the ban started on May 15, 2026. If he wants to end the ban early, he can apply anytime, but must follow special rules to keep his info private.
2026-09533 — Biomarker Incubator: Urinary Kidney Safety Biomarkers; Request for Information
The FDA wants your help to improve tests that spot kidney damage caused by medicines. They’re asking researchers, doctors, and companies to share data by July 13, 2026, so they can make these kidney safety markers better and faster. This could lead to safer drugs and smarter health checks, benefiting patients and the medical community alike.
2026-09508 — Azodicarbonamide (ADA); Request for Information
The FDA is asking for info about azodicarbonamide (ADA), a chemical used in some foods and food packaging, to check if it’s still safe. Food makers, scientists, and anyone with data should share what they know by July 13, 2026. This review could lead to changes in how ADA is used, affecting food companies and possibly costs down the line.
2026-09543 — Agency Information Collection Activities; Proposed Collection; Comment Request; Postmarketing Adverse Experience Reporting
The FDA wants your thoughts on how drug companies report problems after their products hit the market. This update affects drug makers and helps keep medicine safe by improving how side effects are tracked. You’ve got until July 13, 2026, to share your comments—no cost to join, just your voice!
2026-09544 — Modified Risk Tobacco Product Application: Renewal Applications for VLN® King and VLN® Menthol King, Cigarette Products Submitted by 22nd Century Group Inc.
The FDA is inviting the public to comment on the renewal of special approval for two cigarette products by 22nd Century Group Inc. These products claim to lower health risks compared to regular cigarettes. If renewed, the company can keep marketing them this way, with the comment period starting May 13, 2026.
2026-09507 — Butylated Hydroxytoluene (BHT); Request for Information
The FDA wants to know more about how butylated hydroxytoluene (BHT), a chemical used in food and food packaging, is being used and if it’s still safe. They’re asking companies, scientists, and the public to share any info by July 13, 2026. This could lead to changes in rules that affect food makers and might impact what’s allowed in your snacks and packaging.
Previous / Next Documents
Previous: 2026-07484 — Special Conditions: Honeywell International Inc., Boeing Model 757-200, 757-200PF, 757-200CB, and 757-300 Airplanes; Non-Rechargeable Lithium Batteries and Battery System Installation
The FAA is setting new safety rules for Honeywell’s installation of non-rechargeable lithium batteries in Boeing 757 airplanes’ underwater locator beacons. These special conditions make sure the batteries are just as safe as current standards require. The rules take effect April 16, 2026, and Honeywell must follow them while the public can comment until June 1, 2026.
Next: 2026-07518 — Amendment of Class D and Class E2 Airspace Over Wilmington, DE
The FAA is expanding the controlled airspace around New Castle Airport in Wilmington, DE, by adding a small extension to help pilots flying with instruments. This change starts on July 9, 2026, and updates the airspace rules to keep things safe and clear. Pilots and air traffic controllers will notice the new boundaries, but there’s no cost impact for the public.