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Home / Services & Specialities / Gastroenterology / Colonoscopy Miralax Split Prep Instructions

Colonoscopy Miralax Split Prep Instructions

Colonoscopy: Miralax Split Prep Instructions

PLEASE FOLLOW ALL INSTRUCTIONS: Please complete the prep as directed. An incomplete prep can lead to a poor exam. Please avoid red, blue and purple liquids and soy products and juices with pulp or sediment. If you are experiencing vomiting repeatedly (more than twice) please take a 30 minute break, drink warm liquids, walk around and slowly resume your prep.

Two Days Before Your Test:

Avoid raw fruits and vegetables, cooked corn, salad, red meat, beets, nuts, seeds and granola. Avoid multivitamins containing iron.
At least two days before the test you will need to obtain the following from your pharmacy:

  • Four (4) Bisacodyl (Dulcolax)
  • 64 oz. or two (2) 32. oz. bottles of gatorade – any color EXCEPT RED, BLUE, OR PURPLE
  • One (1) 8.3 oz (238gm) bottle of Polyethyene Glycol Powder (a.k.a. Miralax)
  • Mix an entire bottle (238gm) of Miralax with 64oz of Gatorade- place in the refrigerator.

One Day Before Your Test:

Clear liquid diet
Clear liquids such as water, seltzer, tea or coffee (without milk or non-dairy creamer), Gatorade, broth, clear/non-citrus fruit juice,Popsicles,Jell-O. Avoid any red, blue or purple dye in Gatorade, Popsicles and Jell-O. Drink at least 64 ounces of clear liquid.
DO NOT CONSUME any of the following: solid foods, diet or sugar free products (even diabetics), anything RED, BLUE or PURPLE (the dye can interfere with test), alcohol, dairy products, juices with pulp.

At Noon:

Take all four bisacodyl (Dulcolax) tablets with at least 8 ounces of water.

At 5 p.m.:

Begin drinking the colon preparation as follows:

  • One 8 oz glass every 15 minutes, until the first half is gone.
  • Refrigerate the remaining prep.
  • If you feel bloated, nausea or full, stop drinking for 15 minutes and walk around, this can help move the fluid through your colon. Sipping on warm chicken broth is also helpful.

The laxative will cause you to have very loose and watery stools, that’s what we want!

At 10 p.m.:

  • Drink the remaining half of the prep solution
  • One 8 oz glass every 15 minutes until finished.
  • THIS STEP IS VERY IMPORTANT, IT ALLOWS THE DOCTOR TO SEE YOUR COLON WALL FOR ANY ABNORMALITIES.
  • If the doctor cannot see, they could miss something abnormal in your colon.

The goal when you finish the prep is to have your bowel movements clear or yellow clear fluids in the toilet. You should be able to see the bottom of the toilet.

The Day of Your Procedure:

Do not eat breakfast the day of your procedure or you will be canceled.
Take only those Medications you have been instructed to take by your doctor or nurse the morning of your procedure.

YOU MUST HAVE A RIDE HOME. You will not be discharged from the Endoscopy Unit unless you are accompanied by a responsible adult who will either drive you home or accompany you home by taxi, Uber or bus.

DIABETICS: No short acting insulin the day of your colonoscopy. Do not take any oral diabetic medications the morning of your colonoscopy.

If you take anticoagulants, blood thinners or iron supplements, these must be stopped before your procedure. Please check with your physician.

4 HOURS BEFORE YOUR SCHEDULED PROCEDURE START TIME:

Nothing by mouth, not even gum, candy or water.

Tuyyab Hassan, MD; Ruby Malik, MD; Bushra Zia, MD; April Bowers, NP; Jeanne McCarthy, PA-C; and Lucyna Nigro, CNP
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