HELLO,
Most laxatives can caus you to rely on them so you can have a bm. So theyre habit forming. The fiber bulk producing ones are actually the best, you have to drink enough water with them, my doctor said if you don't you will get stopped up using them. I will use an enema a few times a week with ivory soap to get a good cleaning out. So drink plenty of water, i had to drink water for a test and eat nothing, and the water actually came out both ends and it didnt take very long.
Eat nothing for a day and drink a glass of water every half hour, it will clean you out.
BILL M.