Irish Setter arthritis: why joint chews failed

Twelve weeks of joint chews with zero improvement is genuinely frustrating — and unfortunately it's more common than it should be. The problem is that most chews are formulated for a 10kg Spaniel, not a 30kg Irish Setter, so a large senior dog is often getting a fraction of the therapeutic dose without anyone realising. Most arthritis products for dogs are either underdosed or poorly matched to the dog's specific situation — size, age, and severity all change what works. Can you tell me a bit more about what you're seeing with your Setter? Things like morning stiffness that eases through the day, reluctance on stairs, or slowing down noticeably on walks would all help me point you in the right direction.

That picture of Monty — keen to go but clearly working through discomfort — is very typical of moderate arthritis in a large older dog. And one chew a day is almost certainly the issue. A male Irish Setter at 10 years old is likely sitting around 27–32kg, and most standard joint chews deliver around 400mg of glucosamine per chew. The research-backed therapeutic dose for a dog that size is closer to 1,500mg glucosamine plus meaningful levels of chondroitin and ideally something with anti-inflammatory support as well. You'd need to feed three or four chews daily to get close, which isn't practical and works out expensive. Before I suggest what I'd actually try instead, one quick question: has Monty been seen by a vet about this, or are you managing it yourself at home?

That's a sensible approach and good to have the vet in the loop. With a confirmed diagnosis and a dog Monty's size, I'd move away from chews entirely and go with a high-dose liquid glucosamine supplement. The one I'd point you to is Proflexia Flexi-Joint Liquid for Dogs — it's a well-established UK product that delivers 10,000mg of glucosamine hydrochloride per 25ml dose, which is far above what any chew can provide, along with chondroitin and MSM. You dose by weight, so for Monty you'd be hitting therapeutic levels from day one rather than guessing. It goes over food easily and most dogs accept it without fuss. The other reason I like this for Monty specifically is that Irish Setters tend to be sensitive stomachs, and a liquid form is generally gentler than a chew with fillers and flavourings. Give it a full eight weeks at the correct dose — you should start to see the morning stiffness ease within three to four weeks if it's working.

The supplement is the main lever to pull, but a couple of things genuinely make a difference alongside it. First, weight matters enormously with arthritis — even half a kilo less on a large dog reduces joint load meaningfully, so it's worth asking your vet to weigh Monty and give you a honest steer. Second, lead walks on even ground are better than free running right now; Monty's instinct to bound will overrule his pain signals and he'll pay for it the next morning. Short, consistent walks are kinder than one long one. And a decent orthopaedic bed if he doesn't already have one — getting up off a hard floor is when you'll see the most stiffness. None of that replaces the supplement, but they all compound each other.

Good plan — and keep notes on the morning stiffness week by week, it's the easiest thing to track. If you're not seeing any shift by week five, it's worth going back to your vet about Metacam alongside the supplement rather than instead of it; they work on different pathways and there's no reason you can't use both. Hope Monty has a more comfortable autumn.