Has anyone ever try levbid for ibs/c? did it help? I am concerned about trying it since a side effect is the "C" that I already have as well as a dry mouth which I have already also due to sinus conjestion(allergies)? Doesn't make sense to take it for ibs/c?? I was also prescibed an antacid, but I asked if I could take pepsidAC instead, and was told I could. Don't know if I should just try the pepsidAC for awhile and later try the levid if the pepsid doesn't work well. So tired of the pains & the "C", wish it would magically just go away.