I just wanted to share what worked for my old gal who will be 12 in 3 months. Princess Winnie is a 85 lb Shepherd-Collie mix and has severe arthritis in her hips. A year and a half ago she could hardly make it out the front door, and she only had to go down one step. We have Pergo floors and she had a very hard time getting up, so we put area rugs down everywhere. She was moaning a lot, very sad. I was preparing my kids for her demise, I really was. I remember telling my husband she probably only had a few months left and then we'd have to help her along... We were especially sad since we had just lost our old Chow 2 months earlier. My wonderful vet gave me prescription strength Glucosamine-Chondroitin to try. I was skeptical since I had just read an article in my nursing journal that showed mixed results for humans. But I am now a convert. THE CHANGE WAS AMAZING!!!! We have a new dog--and that's an understatement. She no longer goes up a flight of stairs but has no trouble getting up 4 steps or so. She gets up from the floor with a little trouble, but she has much less splaying of her rear legs. And she hardly ever moans anymore!!! She still does a fast trot to the bus stop everyday to meet her kids and the UPS guy. Other pups might not have similar results, but I am convinced that this is the med that helped her. Now if only her cataracts would disappear I would do commercials for this stuff!!