Hi there. (You must be from Canada if you're on Dicetel, right?) I was on Dicetel for quite a long time. They started me on the lower dosage and it seemed to work for about 3 weeks really well, then the dreadful IBS started coming back. I think my body was getting used to this medication, so they put me on a higher dosage, but that didn't work either. I eventually went off Dicetel and onto Modulen (I think that's how you spell it), and it seems to be working so far. However, I also changed a lot of things in terms of my eating habits, etc. which may have contributed to my feeling better. I've stopped eating all greasy food, all pop or chips, I don't eat many really green vegetables or fruits that are too citrussy. I also stay sway from milk products for the most part, and I went off of "the pill" (which I think may have been worsening my IBS a great deal). I now have been completely IBS free for 2 weeks (coincidently, I've also been off birth control for the same length of time). I hope that you too can be symptom free very soon. Good luck-Care.