Bisacodyl
"Okay so I did the worst possible thing and not read the packaging. Thought they where an instant fix not hours so when after half hour I took the first one and nothing I took another two. And then after an hour another two. I repeat. READ THE PACKAGING. Two hours later I had the worst diarreah of my life visiting a sick relative. Since then which was 7 hours ago I haven't been able to get up off the toilet. These work but please don't be an absolute idiot like I was and take that many. There is nothing left to come out of me but it's still coming. It feels like Satan is trying to rip my heart out through my anus."