Lauren,
Fast has been Gluocsomine since he came to us as a 7 year old who had broken his leg as a 2 year racing. Ellen Paulus recommended that we start him on it after we got him since he was older.dog with a previous racing injury. And he was on it on til just about a month ago. Our vet didn't seem to think the Glucosamine was helping any more since he now almost 13. He is on 2 different pain pills for the arthritis in the leg he had broken. We also had him on a different supplement as well. and the combination of those 3 things seem to be helping. He still does limp on that bad leg of his but not all the time though.