The treatment plan may need to take into consideration any physical triggers as well as any environmental changes. Some great areas to start working on to help treat irritable bowel syndrome include: Diet More traditional therapies will include dietary changes like fiber, especially to help treat episodes of constipation. While fiber can help with patients dealing with constipation by decreasing the time it takes for food to be digested and for a bowel movement to occur, it also decreases the pressure on the colon. However, not all patients will do well with dietary fiber intake, particularly if they are having episodes of diarrhea. This is due to the bacteria breaking down faster in the colon which can produce gas, and even cause bloating to be worse. Medications Some drug therapies that may be suggested by your doctor may include:Antispasmodic anticholinergics - Antidiarrheals - Bulk laxatives - Alosetron - Tricyclic antidepressants - Selective serotonin - Anti-anxiety - Lubiprostone For more information about IBS and its treatment, contact Columbia Clinic Urgent Care today! We serve patients from Portland OR, PDX, Happy Valley OR, Tigard OR, Milwaukie OR, Cedar Hills OR, Cedar Mill OR, Lake Oswego OR, Oak Grove OR, Vancouver WA, Aloha OR, Minnehaha WA, Gladstone OR, Tualatin OR, West Linn OR, Fairview OR, Oregon City OR.