Lactulose
"Lactulose does not work at all.  I got it in the ER and was told to go home and continue taking it.   I finished the whole big bottle days ago and still nothing.   Before the lactulose I tried all the over the counter pills, psylium husk, fleet enemas, suppositories, magnesium citrate etc for 2 weeks.  It's now approaching 3 weeks and still nothing.  At least the mag citrate made me gassy and I felt belly rumblings like there was something trying to happen on but with lactulose no gas, bloating, nothing happening at all."