I get B-12 shots, as part of the therapy to overcome anemia. Tests showed I needed it. Didn't stop me from getting to and staying in remission. Maybe the shots would avoid any gastro effects (but $30 per).
49 year old female attorney, diagnosed UC/pancolitis 1985, no surgery but much suffering.
Asacol/5ASA maintenance for 20+ years, usually 3 pills 2x day.
tapering OFF prednisone from lingering flare;
August 2008 sought care of naturopathic doctor. Tested gluten intolerant and started gluten-free, soy-free, dairy-free (other sensitivities) etc. diet which resolved flare. Also Replete probiotic. Slow-release iron and B-12 shots for anemia.