Welcome to the IBS board!
I feel for you... I can't imagine having IBS and IBD. There are, however, a couple members on this board that do have both. Hopefully they'll be around to share some tips.
Sadly, there aren't too many meds out there specifically for IBS. The main ones seem to be antispasmodics and even anti-depressants/anti-anxiety meds. Others are more basic like fiber and probiotics. Here is a list I had posted in a separate thread: