I am having a small bladder tumour removed tomorrow and for sometime I have had pain in my stomach. My doc tells me that is IBS and has prescribed Buscopon, which I must say has almost got rid of the pain. I don't know whether the two are connected but my specialist tells me they are not. How long can I keep taking Buscopan and is there any other treatment that may work? The pain moves about but is mostly on my left side. The doc thinks my pain is Colitus and after Buscopan I am much better but not entirely clear.