Sulfasalazine Enteric Tablets is a drug that is specifically used to treat inflammatory bowel disease and is very effective for diarrhea caused by ulcerative colitis and Crohn’s disease. After oral absorption, Salazosulfapyridine tablets are decomposed into 5-aminosalicylic acid and sulfapyridine by the action of intestinal microorganisms. 5-Aminosalicylic acid, when combined with the connective tissue of the intestinal wall, can exert antibacterial and anti-inflammatory and immunosuppressive effects in the intestinal tract. It can reduce Escherichia coli and Clostridium difficile, as well as inhibit prostaglandin synthesis and the synthesis of other inflammatory mediators, so it is very effective for diarrhea caused by inflammatory bowel disease. However, the use of salazosulfapyridine enteric-coated tablets is not recommended for the treatment of diarrhea due to other causes, and patients should not use salazosulfapyridine enteric-coated tablets if they are allergic to the drug sulfonamide.