Flex Sigmoidoscopy

Dayton Gastro doctors use a variety of preparations depending on individual patient medical history, risk factors, personal preference, and other factors. When your procedure is scheduled, the scheduler will review your medical history and select the preparation best suited for you.

Flexible Sigmoidoscopy: Fleet Enema & Citrate of Magnesium Preparation

  • If you are a diabetic, hold your oral diabetic medication the morning of the procedure.  Check your blood sugar the morning of the procedure.  If you use insulin or an insulin pump, check with your primary care doctor for instructions during your prep and the day of your procedure.  Please bring your insulin with you the day of your procedure.  Drink clear fruit juice if your blood sugar gets low.
  • If you are on a medication to thin your blood (an anticoagulant or antiplatelet) do not stop your blood thinning medications until you hear from our office. We will contact your physician who prescribes this medication for instructions and notify you. If you have not heard from us a week before your procedure, please call our office at 320-5050 to speak with your physician's Medical Assistant.
  • If you are on aspirin or NSAIDs, you may continue to use these medications.
  • If you take iron or vitamins containing iron, hold these medications for 5 days before procedure.
  • If you have asthma, bring your inhaler with you to your procedure.
  • If you have sleep apnea and use a CPAP machine, please bring it with you to your procedure.

7 Days Before Your Procedure

  • Avoid eating nuts, seeds, flax seed, iceberg lettuce, corn, popcorn or tomato skins.
  • Purchase the prep supplies listed.  These items are over the counter and do not require a prescription.
  • Review the instructions below for information regarding when to begin and how to take your bowel prep.

Fleet Enema & Citrate of Magnesium to Purchase

  • One 10-ounce bottle of Citrate of Magnesium (do not purchase red flavors)
  • Two Fleet enemas
  • Both products are sold over the counter at most drug stores

Examples of a Clear Liquid Diet

Clear liquids are any liquid that you can see through. Do not consume any red liquids or alcoholic beverages.


  • Water or Vitamin Water (no red colored water)
  • Coffee or tea without creamer
  • Jell-O (no red colored jello)
  • Sport drinks like Gatorade, G2, Powerade or Propel (no red colored drinks)
  • Popsicles (no red colored popsicles)
  • Broth or bouillon
  • Ensure Clear Peach Flavor
  • Carbonated beverages like Coke, 7-up, or Mountain Dew
  • Apple juice or white grape juice

The Day Before the Procedure

Follow your regular diet until event, then limit your supper to a light meal.

At 3 PM: Drink one 10 ounce bottle of Citrate of Magnesium (do not use cherry or red flavors).

The Day of the Procedure

  • Follow a clear liquid diet.
  • 4 hours prior to your procedure time: Have NOTHING to eat or drink, including no gum, no hard candy, and no chewing tobacco for 4 HOURS PRIOR to your procedure OR YOUR PROCEDURE MAY BE CANCELLED.   Except using a small amount of water, take your prescription medications as you usually do unless you have been instructed to "hold" the medication prior to the procedure.  It is very important that you take your blood pressure or heart medication as usual.   You may brush your teeth the morning of the procedure.
  • 1 1/2 to 2 Hours Before You Must Leave Home for Your Appointment: use the Fleet enemas according to the directions on the box.
    • Give yourself the first enema. Retain it for as long as possible.
    • After you have results from the first enema, wait 20 to 30 minutes and use the second enema.

A Few Reminders Before You Leave Home

  • You must have a driver (no taxis or buses) to take you home after the procedure.
  • Bring a list of your current medications and any allergies to medication.
  • Bring your insurance cards and driver’s license/picture ID with you.
  • If you are a diabetic, check your blood sugar at home before your procedure.
  • If you have an implanted cardiac defibrillator, it is very important that you bring the card identifying the device manufacturer, model and serial number.
  • Wear comfortable clothing and shoes.
  • You may wear your dentures, hearing aids, contacts or glasses; however, you may be asked to remove them for the procedure.  Please leave your jewelry at home.

If you have any questions about your procedure instructions, please call our Scheduling Department at 937-320-5055 Option 2.

Dayton Gastroenterology, Inc.

  • Beavercreek (Sylvania) Office & Endoscopy Center - 75 Sylvania Drive, Beavercreek, OH 45440 Phone: 937-320-5050 Fax: 937-320-5060
  • Beavercreek (Indian Ripple) Office & Endoscopy Center - 4200 Indian Ripple Road, Beavercreek, OH 45440 Phone: 937-320-5050 Fax: 937-320-5060
  • Englewood Office & Endoscopy Center - 9000 N. Main Street Suite 405, Englewood, OH 45415 Phone: 937-320-5050 Fax: 937-320-5060
  • Miamisburg Office - 415 Byers Road Suite 100, Miamisburg, OH 45342 Phone: 937-320-5050 Fax: 937-320-5060

2020 © All Rights Reserved | Privacy Policy | Website Design By: Intrado | Login