of 52 patients receiving a mean dose of 2.5g sulphasalazine/day as maintenance therapy for ulcerative colitis , 35 were found to have one or more drug-induced red cell abnormalities , which were not found in 50 normal controls or in 10 colitics not receiving sulphasalazine .
C0009324
ulcerative colitis
C0036078
sulphasalazine