Half PEG Prep for Colonoscopy Make an Appointment Ask a Question Refer Patient Liquid Diet Start a liquid (no solid foods) diet from the moment of waking up on the day before the procedure. Clear Liquid Diet Gatorade, fruit juice (no citrus), soda, popsicles without fruit or cream, gelatin without fruit, broth without fat, coffee, and tea No solid food No red, orange, or purple colored liquids No dairy Take the Medications When you start the clear liquids, take one 5mg Bisacodyl tablet at noon (12 pm). Fill Prep Solution jug to fill line with water, shake to mix. Begin drinking 8 oz. glass of solution every 15 minutes between 4 and 6pm, until 2 liters is consumed (half of the jug). Discard remainder. Drink the bottle of clear magnesium citrate 6 hours before your procedure. You may have clear liquids up to 4 hours prior. Do not eat or drink (not even water) anything 4 hours prior to your procedure. Be sure to inform your doctors and nurses about any diabetic medications and/or blood thinners you take. Take all medications for high blood pressure, heart conditions, or seizure disorder with water 4 hours prior to your procedure. This will be the last liquid you should have. Bring rescue inhalers, asthma inhalers, diabetic medications, glucose monitor, and CPAP or BiPap machine with you to the procedure. Please be sure to have a ride arranged and with you to take you home after the procedure. If you do not have a ride with you, your procedure may be canceled. Please call 303.398.1355 option #4, if you have any questions or need to reschedule. This information has been approved by Jeffrey King, MD (February 2015).