Red was recently diagnosed with arthritis in his back legs too Clare. He has Metacam twice daily and the vet recommended I gave him glucosamine. I've been giving him the Cystease we had left over after Peanut went to the bridge while I looked into something better. I know from human friends Glucosamine with Chondrotin is best for them so wanted something similar for Red.
@YvonneBlue uses Johnson's 4joints liquid which I have on order, I forgot to ask her what dose she uses, hopefully she will see this and let us know!
With his medication he is now popcorning and zooming again so try not to worry too much about Edward.