Bisacodyl
"Been on osmotic at various and increasing amounts for 18 months now, up to 18 a day, and was put onto bisocodyl at night to try to get some movement. After trying two each night for a week, and not even a twinge, have been moved onto 4 and still no difference, have also tried adding in pico sulphate but not sure if they are even reaching where they need to get to.
No idea if further increase in dose is either likely to be useful or prudent but getting toward the end of my tether with constantly fighting with no movement other than fluid..."