I was just diagnosed with ulcerative colitis last week. The doc put me on Asacol which is Mesalamine. I also have bad gerd and acid reflux for many years. I have no choice but to take a heavy dose of this because I'm trying to calm my colon down and stop the bleeding. I find myself in a "catch-22" position. This med is helping my colon but doing a job on my stomach and esophagus! Stomach hurting and bile backing up to my throat. I sleep sitting up every night. NOW..today I was diagnosed with Rheumatoid Arthritis and need more drugs. I don't know which one the doc is going to give me. Any suggestions?