Mesalazine , also known as Mesalamine or 5-aminosalicylic acid , is an anti-inflammatory drug used to treat inflammation of the digestive tract and mild to moderate ulcerative colitis. Mesalazine is a bowel-specific aminosalicylate drug that is metabolized in the gut and has its predominant actions there, thereby having fewer systemic side effects. As a derivative of salicylic acid, 5-ASA is also an antioxidant that traps free radicals, which are potentially...