Thank you everyone for the suggestions and information. We will definitely look into these. It does make me feel better to hear from others who have gone through similar situations because we go back and forth at being mad at ourselves and then our vet for not some how preventing his current situation. It really is reassuring to know there are still several good options that may help his discomfort. Where would we fine the Flexicose liquid glucosamine complex? Do either the medicines require a prescription from vet? Thanks again