[header] How to treat polyarthritis in beagles [title] Seek the treatment advice of your vet. [step] The treatment goals for polyarthritis are to reduce joint inflammation and treat the underlying trigger (if there is one) causing the immune response. Achieving these goals will allow your beagle to be in remission-free from any signs of polyarthritis. 
Your beagle will need prescription medicine available through your vet. [substeps] Over-the-counter medications will not be strong enough to treat your beagle.