FDA Recalls Adequan Canine Over Glass Contamination: What Dog Owners Need to Do Now

On July 31, 2026, the FDA issued a nationwide recall of Adequan Canine, the injectable polysulfated glycosaminoglycan widely used to manage canine osteoarthritis. The reason: glass fibre contamination in affected lots. If your dog is on Adequan injections, this needs your attention today.

Adequan is one of the more commonly prescribed arthritis treatments in veterinary medicine. It's not a painkiller. It works by slowing cartilage degradation and supporting joint fluid, which makes it popular for dogs who can't tolerate long-term NSAIDs. A lot of owners give it at home after the first few vet-administered doses. That's exactly why this recall is serious. Glass fibres introduced via injection can cause internal injury, inflammation, or worse, and unlike a contaminated kibble where the risk is obvious, an injectable contaminant gives you no warning before the damage is done.

What the Recall Actually Covers

The FDA announcement targets specific lot numbers of Adequan Canine produced by American Regent. Check the packaging on any vials you currently have. The recall covers product distributed across the US, and the FDA is asking owners to immediately stop using affected lots and return them, either to the place of purchase or directly through the recall process.

If you're not sure whether your vials are included, don't guess. Contact your vet or call American Regent directly. The recall notice on the FDA's website lists the specific lot numbers, and that's the only reliable way to check.

What to Watch For If Your Dog Has Already Received Recent Doses

This is the harder part. If your dog received an injection from a potentially affected lot in the past few weeks, you won't necessarily see immediate symptoms. Glass contamination injuries can be subtle early on.

Signs worth watching for:

• Localised swelling or a firm lump at the injection site
• Your dog flinching, guarding, or avoiding being touched near where the injection was given
• Unusual lethargy or loss of appetite that doesn't have an obvious cause
• Any change in movement or willingness to bear weight that seems new rather than the usual arthritis pattern

That last one is tricky, because dogs on Adequan already have mobility issues. You're looking for a change in baseline, not just the arthritis itself. If your dog seems more uncomfortable than usual, or if their gait has shifted in the past few days, get them seen.

If you track your dog's movement or daily behaviour patterns with a platform like Tailo, now would be a good time to review recent logs. A change in activity level or gait that appeared after a recent injection is worth flagging with your vet, even if it looks minor on its own.

Managing Arthritis in the Meantime

The immediate question most owners have is: what now? My dog still has arthritis, the pain doesn't pause because the medication is recalled.

Call your vet before making any changes. They may have existing stock that isn't from an affected lot, or they may recommend a temporary switch while this gets sorted out. Options they might consider include:

• NSAIDs like carprofen or meloxicam, if your dog can tolerate them and isn't already on them
• A gabapentin trial for pain management
• Adequan from unaffected lots, if your vet can verify stock

Do not try to source Adequan from elsewhere without vet involvement. Third-party or international sources may not be subject to the same recall and you have no way to verify lot numbers through unofficial channels.

A Note on At-Home Injections

If you've been trained to give Adequan at home, this recall should also prompt a conversation with your vet about the protocol going forward. Home injections are convenient and many owners do them well, but they also mean there's no clinical eye on the injection site between doses. That's normally fine. In the context of a contamination recall, it's a reason to be more careful than usual about checking the site after each dose even when you resume treatment with cleared stock.

The Broader Pattern Worth Paying Attention To

This isn't the first pet medication recall involving manufacturing defects. It probably won't be the last. The practical upshot is that if your dog is on any injectable or compounded medication, it's worth knowing how to check for recalls without waiting for your vet to contact you.

The FDA's website has a recall database you can bookmark. Searching for your dog's specific medications every few months takes about two minutes and has occasionally saved people a lot of trouble.

Arthritis management in dogs is already a long game. Joint disease progresses, medication tolerance changes, and what works at nine might need adjusting at twelve. A recall like this is disruptive, but it's also a moment to make sure the overall management plan still makes sense. Use the vet appointment as a proper check-in rather than just a "what do I do this week" call.