Bisacodyl
"My Experience:
I was extremely constipated for about 5 days, I felt the urge to go but I just couldn't. I took ONE tablet of the Dulcolax for Women around 6:30pm with a full glass of water and I continued to drink about 40-50oz of water until bedtime (I drink about 80oz of water daily so I drank about 40 extra oz that day). I didn't get the sweats, nausea or cramping that night and it didn't wake me up in the middle of the night. I woke up at 6am and I did get SOME cramping, it felt the same as trapped gas pain but nothing overly unbearable. I  had a bowel movement after about 20 mins and I felt GREAT. I had loose stool afterwards but no pain or cramping. I avoided starch and breads for the day - for extra measure. I loved this product!"