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American Regent Recalls Adequan Dog and Horse Injections Over Glass Fiber Contamination

Four lots of the joint-pain medication were pulled after glass fibers turned up in retained samples; no adverse events have been reported.

By THRYV Life Desk·Published August 10, 2026·Updated August 10, 2026·3 min read
American Regent Recalls Adequan Dog and Horse Injections Over Glass Fiber Contamination
Pets · Illustration commissioned for THRYV. Photography is replaced with original imagery as each story is produced.

The takeaway

American Regent Animal Health is recalling two lots of Adequan Canine and two lots of Adequan i.m. equine injections nationwide after testing found visible glass fiber material in retained samples. No adverse events have been reported. Vets and pet owners with the affected lots should stop use and contact the company or their veterinarian.

American Regent Animal Health has issued a nationwide recall of two lots of Adequan Canine injections and two lots of Adequan i.m. equine injections after testing of internally retained samples turned up visible glass fiber material, the FDA announced July 31.

Which lots are affected

  • Adequan Canine — Lot 3369
  • Adequan Canine — Lot 25011
  • Adequan i.m. (equine) — Lot 24416
  • Adequan i.m. (equine) — Lot 25265P

The products were distributed nationwide to online pharmacies, distributors, wholesalers and veterinarians between May 2024 and January 2026. Adequan is a widely used polysulfated glycosaminoglycan injection prescribed to treat joint dysfunction in dogs and non-infectious degenerative joint disease in horses.

The risk

American Regent said glass fiber particulates in an injectable product could cause local irritation, swelling, inflammation, injection-site pain, infection or abscesses if administered. The company said it has not received any reports of adverse events tied to the recalled lots as of the announcement.

What pet owners and vets should do

Pet owners should stop use of the affected lots and contact their veterinarian with any health concerns. Veterinary facilities should return unused product to the manufacturer or discard it, and distributors should halt further distribution of remaining stock. Questions can be directed to American Regent customer service at 800-645-1706 or cs@americanregent.com.

Owners unsure whether their dog's or horse's medication is affected should check the lot number printed on the vial against the four recalled lots above, or ask their prescribing veterinarian to confirm.

Sources

This article is original writing by THRYV. We link to primary reporting and official documents rather than reproducing them.

  1. Recall notice — U.S. Food and Drug Administration
  2. Recall coverage — Fox Business

Why you can trust this article

Written and edited in-house by the THRYV Life Desk. We do not republish or reword agency copy, and we do not invent quotes, statistics, testimonials or ratings. Where figures move frequently, we point you to the primary release rather than printing a number that will be out of date. Advertising and affiliate partnerships have no influence on our reporting — see our editorial standards, fact-checking policy and affiliate disclosure. Spotted an error? Write to newsroom@thryv-news.com.

General information only. Not personalised financial, medical or legal advice.

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