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. 2009 Dec 8;2:139–147. doi: 10.2147/ceg.s6145

Table 3.

Common adverse effects of delayed release mesalamine in a large randomized placebo controlled trial24

Adverse effect Placebo Mesalamine 1.6 g/day Mesalamine 2.4 g/day
Vomiting 2% 2% 0%
Nausea 2% 2% 4%
Dyspepsia 0% 0% 2%
Diarrhea 0% 0% 4%
Gas 4% 2% 4%
Rash 4% 4% 0%
Headache 14% 15% 4%