Yes - Sandie (Freedom) is absolutely correct! Both my small dogs have bad knees and have been on glucosamine/chrondroitin for several years now. It takes 2 or 3 months to see any affect, but when it does kick in, you should notice a big difference. It's not expensive and you can buy it over the counter just about anywhere. I get it at WALMART (right Sandie??) since that seems to be the least expensive place to purchase it.