I too would suggest duralactin. I had no idea that it came as powder form. I will have to try to find it online. You can get the equine pellets of duralactin but they did not save us much and neither hound taking it liked the horse pellets. My almost twelve year old takes Rimidyl once daily and tramadol twice a day along with his duralactin, He is still able to handle thirty minute walks.