I just read an article in FIRST magazine that 4 grams of questran before meals prevents symptoms of diarrhea. It said it worked 100% of the time. It also said that this kind of Diarrhea could be the cause of gallbladder dysfunction-gallbladders release too much bile into the intestines all at one time, triggering the diarrhea. Apparently the Questran is a bile binding drug. Does anyone know where to get this? Does it have to be prescribed? Thanks