Magnesium sulfate / potassium sulfate / sodium sulfate
"I took my first dose at 6pm last night and 6:02 I was in the bathroom, first few times I poo'd it was still a little hard, but after about half a hour it just comes right through you, the medicine doesn't taste that bad, and by 10pm I was only going in occasionally, now it's 7:21am, I took my 2nd dose at 6am, and I'm wondering how anything can still be left in there tbh.... My procedure is at 9:30, but the diarrhea is tapering off, actually it's not even that, it's like your peeing out your butt....seems to be slowing down though, that way everything is flushed and clean for the doctor and I won't have to go back in for 5 more years hopefully, but at this time I'm still not venturing far from the bathroom"