A - Anti-inflammatory:
1. Aminosalicylates - sulfa-salazine, mesalamine, balsalazid, olsalazine
2. Corticosteroids - Prednisone, methylprednisolone, budesonide, hydrocortisone

B - Immune-suppression:
1. Immunomodulators ('steroid-sparing) - 6-mercaptopurine, azathioprine, cyclosporine, methotrexate
2. Monoclonal antibodies (-mab) - infliximab, adalimumab, certolizumab, natalizumab, vedolizumab

C - Others:
1. Antibiotics: metronidazole, ciprofloxacin
2. Nicotine
3. Adjunct: antidiarrheas (Loperamide, diphenoxylate-atropine), antispasmodics (dicyclomine, propatheline, hyoscyamine)