Christine thank you for putting the uk address on for Synflex.Ordered it the same night.It arrived next day. I can't believe how good it is.Khan was stiff on his front leg.A little athritis. He is so much better.We could see the differance in 5 days. One of my friends is now on it and another has put her dog on it. Wish I had known about it when Chang had arthritis.He was on Rimadyl. I only gave it him when he was realy bad.I would never give it to any of my dogs ever again. I think it did give him some relief from the pain.But I don't know if it shortened his life. I do know we used to have lots of cuddles and one night he snapped and cought my face.It was so out of character. He died not long after of an ambulism on his spine. As I write this I remember the days I spent just nursing him in my arms he was in so much pain. I still miss him so much. This is only my oppinion on Rimadyl. Chow