Mesalamine affects a substance in the body that causes inflammation, tissue damage, and diarrhea. Mesalamine rectal is used to treat ulcerative colitis, proctitis, and proctosigmoiditis. Mesalamine is also used to prevent the symptoms of ulcerative colitis from recurring. Mesalamine rectal may also be used for purposes not listed in this medication guide.
Rowasa is a 5- aminosalicylic acid that is used to treat mild to moderate inflammation of the rectum or the colon. Rowasa mainly works by preventing the production of substances that can cause the inflammation of the rectum and the colon.