http://www.medications.com/se/Rowasa Recent side effects for Rowasa Mon, 31 Mar 2008 21:09:37 -0400 http://www.medications.com/effect/view/28882 i have used it for 12 years off and on, and recently had a reaction. I had worsening of my colitis, and a lot of abdomen pain and cramping. http://www.medications.com/effect/view/28882