Be careful of "one size fits all" scope directions, as most GI offices draft stock instructions for colonoscopies . 2 bottles of magnesium citrate is a colonoscopy prep. My doctor does like laxatives for a pouch prep- usually half a 10 ounce bottle of Mag Citrate is enough. But I also do a Fleet enema. You can probably get away with doing no laxatives if you drink clear liquids for a long enough time.