Colonoscopy Prep


Supplies you’ll need can be found over the counter

  • 2 (10 mg) tablet of bisacodyl (Dulcolax®).
  • 1 (238 gram) bottle of polyethylene glycol (MiraLAX®).
  • 1 (64-ounce) bottle of a clear liquid that is not red. Gatorade or a similar brand will suffice.
  • Vaseline or A&D lotion or Desotin and wet wipes.

Let your doctor know if you take any blood thinners, aspirin, Fish Oil, any vitamins, ibuprofen and any diabetic medications.

Eat a low-residue diet
You must start eating a low-residue diet 2 days before your colonoscopy. A low-residue diet is where you eat very few foods that are high in fiber or are hard for your body to digest. This is the opposite type of diet that is generally recommended. For the purpose of the colonoscopy it helps with the entire clean out process.  Fiber is made up of plant material that can’t be completely digested by your body. Examples of foods high in fiber include whole-grain breads and cereals, nuts, seeds, and raw or dried fruits. By avoiding these foods before your colonoscopy, you can make sure your colon will be cleaned out for your procedure.





  • White bread
  • Plain crackers, such as saltines
  • Cooked cereals, such as cream of wheat or grits
  • Cold cereals, such as corn flakes or puffed rice
  • White rice, noodles, and pasta
  • Seeds, nuts, and coconut
  • Whole-grain products, such as pasta, cereals, crackers, and breads

Fruits and Vegetables

  • Well-cooked fresh or canned vegetables without seeds, such as asparagus tips, beets, green beans, carrots, mushrooms, spinach, squash (no seeds), and pumpkin
  • Cooked potatoes without skin
  • Ripe bananas
  • Melon, such as cantaloupe and honeydew
  • Canned or cooked fruits without seeds or skin, such as applesauce or canned pears
  • Avocado
  • Most raw vegetables
  • Most raw or dried fruits, such as pineapple, raisins, and figs
  • Certain cooked vegetables, including peas, broccoli, winter squash, brussel sprouts, cabbage, corn (and corn bread), onions, cauliflower, and potatoes with skin

Meats and Protein

  • Lean and tender meats, including beef, lamb, chicken, fish, and pork
  • Eggs
  • Beans
  • Lentils
  • Tofu


  • Plain cakes and cookies
  • Gelatin, puddings, custard, and sherbet
  • Ice cream and popsicles
  • Hard candy
  • Pretzels
  • Vanilla wafers
  • Peanut butter
  • Jam, marmalade, and preserves
  • Popcorn


  • Coffee and tea
  • Carbonated beverages
  • Milk
  • Apple juice, no-pulp orange juice, and cranberry juice
  • Strained vegetable juices
  • Fruit juices with pulp or seeds
  • Prune juice
  • Nectars

The Day Before Your Procedure
Follow a clear liquid diet
You will need to follow a clear liquid diet the day before your procedure. ​

  • Do not drink anything red, purple, or orange the day before your colonoscopy.
  • Make sure to drink plenty of liquids other than water, coffee, and tea. Drinking enough liquids is an important part of your colonoscopy preparation. Try to drink at least 1 (8-ounce) glass every hour while you’re awake.
  • If you have diabetes, you should drink only sugar-free clear liquids.





  • Clear broth, bouillon, or consommé
  • Any products with any particles of dried food or seasoning


  • Gelatin (such as Jello®)
  • Flavored ices
  • Sweeteners, such as sugar or honey, may be used
  • Anything red


  • Clear fruit juices, such as white cranberry, white grape, apple
  • Soda, such as 7-Up®, Sprite®, ginger ale, seltzer, Gatorade®
  • Black coffee (no cream)
  • Tea
  • Juice with pulp
  • Nectars
  • Milk
  • Alcoholic beverages

patientprepPrepare your MiraLAX® bowel preparation
On the morning before your procedure, mix all 238 grams of MiraLAX® with the 64 ounces of clear liquid until the MiraLAX® powder dissolves. Once the MiraLAX® is dissolved, you can put the mixture in the refrigerator. The MiraLax has no taste of its own and therefore when you combine it with your liquid of choice will be easy to tolerate.

MiraLax Split Dose Preparation

The MiraLAX® bowel preparation will cause you to have a lot of bowel movements, so be sure to be near a bathroom the day before your procedure. You should purchase A&D lotion or Desotin or Vaseline along with wet wipes to ensure that the bowel movements do not irritate you or cause chaffing. Use the wet wipe after your bowel movement and apply the cream around the anus after each bowel movement.

At 12:00 pm on the day before your procedure, take 1 10mg bisacodyl tablet by mouth with  8 ounces of water.

At 5:00 pm on the day before your procedure, start drinking the MiraLAX® bowel preparation. Drink an 8 ounce glass of the mixture every 15 minutes until half the container is empty. Place the remaining preparation back into the refrigerator. Continue with your clear liquids.

At 8:00 pm, take your second 10mg bisacodyl tablet with 8 ounces of water.

Your may continue any clear liquids until midnight, thereafter do not eat or drink anything…… EXCEPT

6 hours before your scheduled exam – Finish the remaining MiraLax prep that was in the refrigerator

The Day of Your Procedure

  • Do not eat or drink anything the morning of your surgery. This includes water, gum, and hard candy.
  • Take only your blood pressure medication with a small sip of water. Do not take diuretics (water pills).
  • Leave all valuables such as credit cards and jewelry at home.

What to bring with you

  • A list of the medications you take at home
  • Your rescue inhaler (such as albuterol for asthma), if you have one
  • A case for your glasses
  • Your Health Care Proxy form, if you have completed one
  • Health insurance information

Post Procedure

  • You will need to have someone bring you and drive you home. They will need to remain in the Endoscopy department at all times until the procedure has been completed.  Patients will not be allowed to leave the facility alone.
  • Car service, public transport or walking in lieu of the above, immediately post procedure is not permitted.
  • You are not to drive, operate any machinery or make legal decisions the remainder of the day/evening following your procedure.
  • Once you return home someone will need to stay with you for at least 4 hours.

Any cancellations are required 48hrs or more prior to the scheduled procedure.
Any cancellation shorter than 48hrs will incur a $200 cancellation fee.
Please call the office if you need to cancel.