Colonoscopy with Miralax and Gatorade Prep - Standard Prep - Colonoscopy Preparation Timeline

Sep 27, 2026

Uploaded by Blitz

Colonoscopy preparation timeline using Miralax and Gatorade (Standard Prep), detailing what to purchase and how to take each medication step-by-step. The schedule outlines dietary restrictions and transitions from 21 days prior purchasing through low-fiber and then clear-liquid diets, including exact timing for bisacodyl and MiraLAX-Gatorade dosing. It also includes guidance for hydration, medication adjustments for GLP-1 agonists and SGLT-2 inhibitors, magnesium citrate timing on the procedure day, and practical colon cleansing tips. Appointment change, responsible-person, and readiness criteria are provided, with contact information for questions.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages3

Reading Time8 min

AccessFree to download

Colonoscopy Preparation Timeline

21 Days Before or ASAP: Purchase Items for Standard Prep

7 Days Before

3 Days Before: Begin Low-Fiber Diet

2 Days Before: Clear Liquid Diet

1 Day Before: Bisacodyl and MiraLAX-Gatorade Timing

Day of Procedure: Magnesium Citrate and Fasting Rules

Additional Information: Tips, Appointment Changes, Responsible Person, Readiness

Colonoscopy with Miralax and Gatorade Prep ( Standard Prep) Colonoscopy Preparation Timeline Check boxes as you progress! 21 Days Before or ASAP: Purchase the items for Standard Prep* *We recommend purchasing a Prep Kit from MNGI Digestive Health. You can scan the QR code or visit [https://www. mngi.com/colonoscopy-prep-kits](https://www. mngi.com/colonoscopy-prep-kits)[ ](https://www. mngi.com/colonoscopy-prep-kits)[Gatorade is not included in the prep kit and needs to be purchased separately](Gatorade is not included in the prep kit and needs to be purchased separately). Or... the individual items can be purchased at your local pharmacy: Two (2) 5mg Bisacody l tablets One (1) 8.3oz bottle of Polyethylene Glycol ( PEG) 3350 powder ( MiraLAX or generic equivalent) 64oz Gatorade/ Powerade or approved electrolyte beverage ( NO red colors) Two (2) 125mg or three (3) 80mg Simethicone tablets, chews, or softgels One (1) 10oz bottle Magnesium Citrate ( NO red coloring) or 16-18g powdered Magnesium Citrate Medication Adjustments: If taking GLP-1 agonists (Ozempic, Weygovy, Trulicity, Rybelsus, or others) or SGLT-2 inhibitors ( Invokana, Farxiga, Jardiance, Steglatro) follow specific holding guidelines. [https://www. ](https://www. )mngi.com/colonoscopy-info 7 Days Before: STOP taking fiber and iron supplements. If you have diabetes, contact your monitoring provider for further direction on insulin and/or blood sugar management. 3 Days Before: Begin low-fiber diet (10-15g/day.) AVOID seeds, nuts, popcorn, corn, whole grains, quinoa, fresh fruit, raw vegetables, etc. For additional details on following a low fiber diet, please [visit](visit www. mngi.com/conditions/low-fiber-diet)[ ](visit www. mngi.com/conditions/low-fiber-diet)[www. mngi.com/conditions/low-fiber-diet](visit www. mngi.com/conditions/low-fiber-diet) Visit us [at mngi.com | Questions?](at mngi.com | Questions?) (612) 871-1145 2 Days Before: Stay well-hydrated. STOP eating solid foods at 11:45PM BEGIN clear liquid diet (only liquids you can see through-no red) . For additional details on following a clear liquid diet, please visit [https://www. mngi.com/conditions/clear-liquid-diet](https://www. mngi.com/conditions/clear-liquid-diet) 1 Day Before: NO SOLID FOOD-ALL DAY. Clear liquids ONLY DO NOT HAVE: dairy (including coffee creamer), alcohol, oils, or pulp At 12PM, take two (2) Bisacody l tablets. Between 4-6PM, drink MiraLAX-Gatorade mixture ( ~one 8oz glass every 15min) . Mix 1 bottle of MiraLAX with 64oz of liquid (a minimum of 56oz of electrolyte beverage should be used to mix MiraLAX) . Up to 8oz of water can be added to achieve the desired 64oz. With last glass of MiraLAX-Gatorade mixture, take 240-250mg of Si methicone. Between 4-6PM Last Glass of MiraLAX Mixture Simethicone MiraLAX Mixture Continue clear liquid diet ONLY Day of Procedure ( Continues on next page): 4 HOURS BEFORE: Drink Magnesium Citrate. Even if your stool looks clear, DO NOT skip this step. Magnesium Citrate is key to removing an additional layer of 16-18 g Magnesium Citrate POWDER packet dissolved in 10oz water Visit us [at mngi.com | Questions?](at mngi.com | Questions?) (612) 871-1145 Day of Procedure ( Continued) NO SOLID FOOD. Clear liquids ONLY DO NOT HAVE: dairy (including coffee creamer), alcohol, oils, or pulp DO NOT USE: chewing tobacco, THC, marijuana, or illicit drugs. DO NOT TAKE: any chewable vitamins or supplements. Take your morning medications with sips of water at least 3 hours prior to your procedure. This includes heart and blood pressure medications, blood thinners (if you have not been told to stop these by our office), methadone, and anti-seizure medications. 3 Hours Before: STOP consuming all liquids. NOTHING BY MOUTH until after the colonoscopy. Ensure stool is clear/yellow/tea colored liquid ONLY before your appointment. If uncertain, contact our off

FAQs

What can I eat and drink starting 3 days before the colonoscopy?

Begin a low-fiber diet (10–15 g/day) and avoid seeds, nuts, popcorn, corn, whole grains, quinoa, fresh fruit, and raw vegetables.

How do I take the MiraLAX-Gatorade mixture on the day before the procedure?

Between 4–6 PM, drink the MiraLAX-Gatorade mixture about every 15 minutes (about one 8 oz glass). Mix 1 bottle of MiraLAX with 64 oz of liquid, using at least 56 oz of electrolyte beverage, and take simethicone with the last glass (240–250 mg).

What should I do 4 hours before the procedure regarding magnesium citrate?

Drink magnesium citrate 4 hours before the appointment and do not skip this step, even if stool appears clear.

Sep 27, 2026

Uploaded by Blitz