Bisacodyl
"I've been constipated for awhile now but last week I took 'Extrolax' which seemed to work wonders but my grandmother suggest I take this for 'softening my stool' so I did! Took it at 11:3pm it's now 5:40am and after being woken up with severe pain I am now on the loo poo/weeing! Have had no cramps as of yet which is a good thing for me because I can't stand pain! But now i'm afraid to get off the loo and get some sleep! It takes it's time and is quite painful (could be because I didn't drink enough water) but it is effective!"