diff colitis (pseudomembranous colitis) In some cases, the complications can lead to death. According to a 2019 research review, C. diff infections increased the risk of death in people with UC.
Photosensitivity, GI upset, esophageal irritation/ulceration (drink fluids liberally with dose), rash, increased BUN, hypersensitivity reactions, blood dyscrasias; pseudomembranous colitis.