Adequan Canine Injection Recall: What Las Vegas Dog Owners on Joint Therapy Should Know

American Regent has pulled two lots of its widely used joint-health injection after internal testing turned up glass fibers. Here's what the recall covers and how Las Vegas pet parents can check their dog's treatment.

What happened with Adequan

Adequan Canine Injection is a prescription therapy many older or arthritic dogs receive to help slow joint cartilage breakdown. Its maker, American Regent, Inc. Animal Health, announced on July 31, 2026 that it was recalling two lots of Adequan Canine along with two lots of the related Adequan i.m. product after glass fibers were discovered during testing of internally retained samples.

According to the company's notice, the affected lots are Adequan Canine Injection (100 mg/mL, 5-mL multi-dose vials) lots 3369 and 25011, plus Adequan i.m. Injection (500 mg/5 mL, single-dose vials) lots 24416 and 25265P. Those lots reached veterinary clinics, distributors, wholesalers, and online pharmacies nationwide between May 2024 and January 2026, so some may still be sitting in clinic refrigerators or home medicine cabinets.

Why glass fibers in an injectable matter

Adequan is given as an intramuscular shot, and the company's own recall notice is direct about the risk: an injectable containing tiny bits of glass could irritate tissue at the injection site, trigger swelling or inflammation, cause pain, or in more serious cases lead to infection or an abscess. That is a mechanical and contamination concern rather than a change to the drug's active ingredient, polysulfated glycosaminoglycan.

As of the recall announcement, American Regent said it had not received any reports of adverse events tied to the recalled lots. That is reassuring, but it does not mean the affected vials are safe to keep using. The company is asking clinics and pet owners to physically check lot numbers rather than wait to see if a problem shows up.

What Las Vegas pet owners should do

If your dog receives Adequan injections for hip, knee, or general joint arthritis, the first step is simple: look at the vial or ask your Las Vegas veterinary clinic to confirm the lot number against 3369, 25011, 24416, or 25265P. Clinics that administer the injections in-house should already be checking their own supply against the recall notice.

If your dog's medication does come from one of the recalled lots, do not simply stop the injection series on your own. Arthritis therapy works best on a consistent schedule, so the right move is a quick call to your vet's office to arrange a replacement vial from an unaffected lot and to ask whether your dog should be monitored for any injection-site swelling or discomfort in the meantime.

This kind of manufacturing recall is uncommon for long-standing joint therapies, and it's a good reminder that even routine, well-established medications benefit from a periodic lot-number check, especially with dogs who receive repeat courses of an injectable over months or years.

Keeping joint care on track this summer

Las Vegas summers are hard on arthritic joints. Dogs tend to move less in extreme heat, and reduced activity can make stiffness feel worse even when the underlying disease hasn't changed. Sticking with a consistent joint-therapy schedule, adjusted only in consultation with your vet, matters more during these months, not less.

Simple home habits can support whatever plan your vet recommends: shorter, more frequent walks in the cool morning or evening hours, supportive bedding for older dogs, and keeping an eye out for limping or reluctance to jump onto furniture or into the car. None of that replaces an in-person evaluation, but it gives you useful details to share at your dog's next visit.

5 Steps If Your Dog Is on Adequan

A short checklist for Las Vegas dog owners managing arthritis therapy while this recall is active.

1. Find the vial: Locate the current vial or ask your clinic for the lot number used in your dog's last injection.
2. Match it against the recall list: Compare the lot number to 3369, 25011 (Canine) or 24416, 25265P (i.m.).
3. Call before skipping a dose: If it's a recalled lot, contact your vet to arrange a replacement rather than pausing treatment on your own.
4. Watch the injection site: Note any new swelling, heat, or tenderness where a recent shot was given and mention it at your next visit.
5. Keep the treatment schedule steady: Joint therapy tends to work best with consistent timing, so plan to resume promptly once an unaffected vial is confirmed.
6. Ask about a general joint checkup: Recalls are a natural prompt to schedule a broader mobility and comfort check, especially heading into the hottest weeks of summer.

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