Humira or adalimumab is a biological response modifier and tumor necrosis factor (TNF) blocker. Thus,
in Crohn’s it will modify your body’s response to
disease (bloating, tenderness, diarrhea, indigestion etc). This is because any immune mediated disease like Crohn’s produces excess of an inflammatory protein called TNF-alpha, which causes cellular damage along with pain and inflammation. Humira blocks the action of TNF.