I'm sorry to hear it, Susan. Our old girl was gifted with probably four extra years of painfree life by a prescription arthritis medication (which I cannot remember the name of now, for some reason). Glucosamine did nothing for her at all. The medication worked fantastically well, and had only a few serious side effects to be watched for, none of which she had, fortunately. It ran us about fifty dollars a month, but well worth it to us.