<unk>  is a locally acting aminosalicylate that is FDA approved for the treatment of mildly to moderately active ulcerative colitis in adults.   Common adverse reactions include headache, abdominal pain, diarrhea, nausea, vomiting, respiratory infection, and arthralgia.
Balsalazide
Nitroprusside
Imolamine
Endralazine
Nitroglycerin 
Isosorbide dinitrate
Altretamine
Captopril