We are using the 4 liters of PEG solution as a standard for the colonoscopy preparation in our ward. Some new data regarding the split dose prep has been newly published. I have also seen a manuscript, in which a capsule of Colpermin improved the colonoscopy procedure. Has anyone any experience with these kinds of prep? Do you recommend them? Is there any other addition to the standard colon prep regimen that can help in terms of better colon prep, faster procedure time and also patient's satisfaction?