After a lot of research, and talking about it all to my vet, he thinks that a product called Glyco Flex Plus (by Vetri Science) might be the best option to try for Feeby's arthritic conditions. It's primary contents are Glucosamine, Green Lipped Mussels, Methylsulfonylmethane (MSM), and Chondoitrin. These ingredients are for joint/cartilage health and contain anti-inflammatory and antioxidant properties. We think Feeby's worst problem is the 2-nearly fused vertebrae in her upper back/neck - which he said is not the same kind of damage as typical joint arthritis. She has onset arthritis in one elbow and some toes. It would seem the likely root cause of her reduced mobility is her vertebrae, but no one knows for sure. We are hoping this might help all of her issues, including her spine because of its anti-inflammatory value - and is not problematic like NSAIDs are. Thoughts/opinions/experience, anyone? Thanks!