Three years ago I did a Colon Cleanse through Nutrition Now. Multi level distributer. Not me but a co-worker. The first few months they have you cleanse your colon before putting you on a gentle parisite program. It has to be taken for a full year though if you want to kill tape worms. Dr. Shultz has much stronger products. With his you also have to cleanse the colon first. Don't want dead parsite adding to the poisons already stuck in the colon. Could make you very sick. That is why you cleanse the colon first. So when you later kill the parisites their excrements and dieing letting off toxins will not cripple you up sick. You stay with a Colon Cleanse the whole time you do the parisite programs. Now with Dr. Shultz it did not matter to much if you did the bladder or the Liver Flushes in any certain order next after the five day colon cleanse. Have to make sure you take a super food to replenish the minereals and vitamins as you cleanse. Hope this helped.