just checked this post and want to follow up with results. I started Scout on 2000 mg of glocosamine tablets and 400 mg of Shark Cartridge for two weeks than backed down the Glucosamine to 1000 mg. The difference isa amazing I wish I had started it sooner. I have only given him one asprin in two weeks and that was after a twenty minute run in wild pheasant cover. I just went to Wal-mart to buy the meds and followed the dosing directions off the internet for dogs. It was 500 mg of glucosimine per fifty lbs. of dog and double the dosage to start the first two weeks with. All in all I'm very happy with the results.
My two labs are hunting dogs but also our indoor dogs also so they get some of the most comfortable sleeping areas in the house, anywhere short of couches and beds!