Sulfa drug used in inflammatory bowel disease includes:
the azo bond is split by colonic bacteria to release 5ASA and sulfa pyridine .the former exes a local antiinflammatory effect ESSENTIALS OF MEDICAL PHARMACOLOGY SEVENTH EDITIION KD TRIPATHI PG NO 683
Sulfasalazine
Sulfamethoxazole
Sulfinpyrazone
Sulphadoxine
Gastrointestinal tract