5-aminosalicylate drugs are commonly used to treat inflammatory bowel disease. Because they have both anti-inflammatory and immunosuppressive actions, they are effective in the control of active ulcerative colitis or Crohn's colitis and for maintaining remission of ulcerative colitis.
 
 
Recommended Resources
Launch page about 5-Aminosalicylates contains information about Apriso, Dipentum side effects, mealamine, and rectal mesalamine, as well as other agents.
http://ibdcrohns.about.com/od/mesalamine/5Aminosalicylates_Asacol_Rowasa_etc.htm
The official site of Asacol, maker of mesalamine delayed-release tablets, provides details about the agent, what it treats, frequently asked questions, and articles about irritable bowel syndrome.
http://www.asacol.com/
Pentasa manufactures mesalamine capsules and displays data here about its product including the benefits of use, possible adverse affects, and things to ask one's doctor before beginning a regimen of the medication.
http://www.pentasaus.com/