MiraLax Bowel Two Day Preparation for Colonoscopy

I. Obtain in advance before the procedure:

Please read through the entire instructions below. You will need to obtain the following items from your pharmacy or grocery store at least 3 days before the procedure.

  1. One 8.3oz (238g) bottle of Miralax. A generic brand will be fine, as long as it is 8.3oz. 
  2. Four Dulcolax (Bisacodyl) laxative tablets. You will need the 5mg tablets, not suppositories.
  3. 64oz of a sports drink (such as Gatorade, G2, Propel), Crystal Light, or water. Do not obtain a red colored liquid. This liquid will be used for mixing with Miralax the day before the procedure. 
  4. Clear liquids* as noted below that you will need to consume for your meals and general hydration. 
  5. Optional: moist baby wipes or a similar product for cleansing while taking the prep.

II. Two days before the procedure: 

You should eat a standard breakfast, as this will be your last solid meal until the colonoscopy. After breakfast, for the rest of the day, you must drink and eat only clear liquids* as noted below. We recommend that you drink at least 8 glasses of liquids throughout day.

III. One day before the procedure:

  1. Drink only clear liquids* for breakfast, lunch, supper and snacks. Drink at least 8-10 glasses of liquid throughout the day.
  2. At noon, take two Dulcolax tablets, and drink at least 8oz of liquid. 
  3. At 4pm, mix the entire bottle of Miralax (8oz, 238g) into a pitcher with the 64oz of your sports drink (Gatorade, G2, Propel), or with 64oz of Crystal Light or water. Make sure the powder is well dissolved, and then drink an 8oz glass of the Miralax Prep Solution every 10-15 minutes until the entire prep solution has been consumed. Try to consume this entire solution within 3 hours.
  4. At 8pm, take the last two Dulcolax tablets with 8oz of clear liquid.
  5. Continue to drink as much clear liquids as possible until bedtime, but do not drink or eat any liquids or food after midnight, except a sip of water which may be taken with morning meds if previously discussed. 


  • Clear Broth or Bouillon (Beef, chicken, vegetable)
  • Water, tea, black coffee (no creamer or milk, but a sweetener is okay)
  • Carbonated soft drinks (Sprite, Coke, Dr. Pepper, etc.)
  • Popsicles (no red colors)
  • Apple juice or other clear juices without pulp (no orange juice)
  • Jell-O (no red colors)
  • Honey
  • Gatorade or other sports drinks
  • Hard candies (Life Savers, lemon drops, Jolly Ranchers)

No milk, creamy soups, or alcohol should be consumed



Contact us today by calling (256) 216-6500 or submit your information below, and we will contact you to discuss the best surgical options for your health and wellness.


We're happy to answer any questions you may have, feel free to call us at
(804) 775-4559