Arcoxia
Yes I take it infrequently as I have Ankylosing Spondylitis.
It is like Vioxx, which was withdrawn a few years ago, and Celebrex - a COX2 inhibitor. These are supposed to be kinder on the stomach for those of us who can not take 'regular' NSAIDs ( brufen, neurofen, diclofenac etc ) as they cause ulceration and stomach bleeding.
I have not been aware of any side effects with Arcoxia apart from dark faeces if I take them for 3 or 4 days; I guess this also suggests stomach bleeding.
My normal routine is to take no more than one a week.
I can recommend a 'natural' anti-inflammatory called Nexrutine, which is available from Victoria Health. I have been using this for 5 or 6 years with, as far as I know, no side effects. Of course the medical profession do not have any thing to do with an alternative drug that has not been 'properly' tested.
I suggest you Google all the things I have mentioned, including Anky' Spon', then you can make your own mind up!