I can't get rid of my diarrhea.I have taken two prescriptions of flagyl.was on imodium with that,remembered lactinex and purchased that .I finished Flagyl,not on imodium, tried small script for lonotil,finished it.still on lactinex was trying 3 times a day but bottle says to chew 4 tab 3-4 times day.chewed 3 this morining. I began to try pepto bismol yesterday,took 4 doses and 5 th dose this morining(it says no more than 8 doses in 24 hr.I just came from bathroom and it was watery.My Md instructed me to break my Viibryd in half to a 20 mg dose.Nothing has stopped my problem.