Effective alternative for dogs with pain resistant to other drugs!

My 100 pound, 11 year old lab tore his ACL several years ago and suffers from arthritis in the injured leg. After trying several medications that his stomach would not tolerate, we found Zubrin. Now, he romps around like a puppy and enjoys our long walks. Walter has been taking Zubrin daily for over a year and shows no signs of ill side effects. This product has made a huge difference in my dogs life, he is able to be active and shows no sign of pain or discomfort.