I have been cancer free for 6 years after having uterine cancer and having chemotherapy.  After that I had some diarrhea but about a year ago I had to have colon surgery and they remove 18" of colon and removed my gall bladder.  Since then I have had such a problem.  I take Imodium and Dr. said I could take up to 10 a day.  I also take diphenoxylate HCI and Atrophine sulfate tablets...up to 8 in 24 hrs.  I occassionally have to take Pepto Bismal too.  Also I take Align probiotics.   I really wish there was something that would control diarrhea with just a couple of pills as I am never sure of this, have recurring diarrhea several times a day still.