Don't be scared! I was too, terrified actually. But it turned out to be for the best. Remicade never did heal my colon... By the time I did start Humira, I figured "Why keep taking Remicade, it's not doing anything???" It was like risking a lot for nothing in return. If Humira doesn't work for you, you can always give the trial drug a shot, or opt for surgery. Humira carries less risk than Remicade, & you're not likely to build antibodies to it as it's all human proteins. If it was between Humira or MLN trial drug, I'd try Humira first.