5-ASA colonic mucosal concentrations resulting from different pharmaceutical formulations in ulcerative colitis

Figure 2 5-aminosalicylic acid mucosal concentrations in the sigmoid colon. A: In patients receiving oral 5-aminosalicylic acid (5-ASA) pH-dependent release formulations according to endoscopic and histological grading of disease; B: In patients receiving 5-ASA pH-dependent release formulations on oral plus topical treatment or oral therapy alone.