This review deals with potential and possibly primary therapeutics tha
t, through insight into the inflammatory cascade, result in more ratio
nal treatment principles replacing the classical therapy of inflammato
ry bowel disease (IBD), i.e. Crohn's disease (CD) and ulcerative colit
is (UC). These new therapies might be useful for IBD patients, especia
lly since the 'classical therapy' with agents like glucocorticoids, su
lfasalazine, mesalazine, azathioprine, B-mercaptopurine, cyclosporin a
nd methotrexate is often only moderately effective and may have import
ant side effects. Controlled trials of the novel agents mentioned in t
his review have not yet been performed, however.