Fc 11a-2, a benzimidazole compound, is an orally active and potent NLRP3 inflammasome inhibitor. Fc 11a-2 restrains the formation of NLRP3 inflammasome by inhibiting activation of caspase-1 and thus the activation of IL-1b/IL-18. Fc 11a-2 prevents the development of Dextran sulfate sodium (DSS;)-induced murine experimental colitis.