Yes - Synovi G3 Soft Chews , a nutritional supplement w/ Glucosamine, Omega 3 Fatty Acids, Antioxidants, and other vitamins and minerals. It seemed to give her a boost when we first started it about 2 years ago. Not particularly expensive - you can find it on the net (think I used Entirely Pets) for ~ $.40/chew. And we finally started her on Rimadyl last winter when she really had trouble getting around. There's no doubt that has helped a lot, but be aware that this drug does have some potential side effects. Given that our dog is almost 14yo, I'm not too concerned about the side effects shortening her life at this point.