Colonoscopy - Preparation

Boise - Caldwell

Over the Counter Items to Purchase

  • 4 Dulcolax (active ingredient: Bisacodyl) Tablets
  • 238 Gram Bottle of the Non­ Prescription medication Miralax (Generic Ok)
  • 64 Ounces of Gatorade, NO red- or purple-colored flavors

Five Days Prior to Procedure

  • Stop all anti-inflammatory medications. These include Aspirin, Ibuprofen, Motrin, Aleve, Naprosyn, Naproxen, Sulindac, Piroxicam, Flededn, Indomethacin, Diclofenac, or Voltaren.
  • Tylenol (Acetaminophen) is ok and safe to use in place of the above anti-inflammatory medications
  • If you are taking Coumadin (Warfarin), Plavix (Clopidogrel), Xarelto (Rivaroxaban) or any other blood thinners please contact our office regarding this medication, if instructions to hold this drug have not already been given at the time of you office visit.
  • Stop all fiber supplements including Metamucil, Citrucel, Benefiber, Fiber Choice and Flax seeds.
  • If you are diabetic and use insulin, please contact our office for insulin instructions if not already discussed at your visit.
  • Should you have ANY QUESTIONS about any medications you should or should not take please call our office.

One Day Prior to Your Procedure

  • Take only clear liquids by mouth. A good rule of thumb with a clear liquid is anything you can hold up to the light and see through. These include clear juices (apple/white grape juice), tea, coffee (No Cream or sugar), clear soft drinks, sports drinks (Gatorade,G2,PowerAde), Clear broth, Bouillon, Jell-O or popsicles.
  • Continue to avoid red- and purple-colored products and dairy products along with consuming large amounts of fluids to avoid hunger and dehydration.
  • At 10:00am take two (2) Dulcolax tablets. You may begin to experience intestinal cramping and stooling shortly after taking this medication.
  • At 3:00pm take the other two (2) Dulcolax tablets. Again, you may continue to experience or begin to experience intestinal cramping and stooling shortly after taking this medication.
  • At 5:00pm mix the 238 gram bottle of MiraLAX (or generic) into the 64 ounces of Gatorade. Mix or shake until the powder has completely dissolved into the solution. Drink a 8-10 ounce glass every 10-15 minutes until the entire solution is gone. Should you develop nausea after drinking this solution it is ok to slow down to an 8–10-ounce glass every 20-25 minutes. You will begin to experience loose stools shortly after you begin this medication.
  • You may continue consuming clear liquids until 6 hours prior to your procedure.

The Day of Your Procedure

  • Take your usual prescribed medications with small sips of water, unless otherwise indicated.
  • Please bring a copy of your current medications with the dosage to your procedure.
  • You may NOT drive after the procedure. It is strongly recommended that you enlist a family member or a friend to take you home safely after the procedure.


For questions or concerns before or after procedure, contact us.

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We Accept All Major Insurance Carriers:

Blue Cross is an accepted insurance at Dr. Daniel Gay, MD Regence is an accepted insurance at Dr. Daniel Gay, MD Select Health is an accepted insurance at Dr. Daniel Gay, MD Humana is an accepted insurance at Dr. Daniel Gay, MD Medicare is an accepted insurance at Dr. Daniel Gay, MD Medicaid is an accepted insurance at Dr. Daniel Gay, MD Tricare is an accepted insurance at Dr. Daniel Gay, MD Pacific Source is an accepted insurance at Dr. Daniel Gay, MD United Healthcare is an accepted insurance at Dr. Daniel Gay, MD Aetna is an accepted insurance at Dr. Daniel Gay, MD

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Patient Testimonials

chris brooksby
I can’t say enough good things about Dr. Gay and his whole team, everyone I dealt with was very friendly and took lots of time to explain everything and make me feel comfortable with the procedure that I had scheduled. Additionally Dr. Gay spent a lot of time going over how the surgery had gone with me on my follow up appointment-I never felt like he was trying to say a few things then push me out the door so he could move on to the next patient as I have felt in other doctors offices in the past. That all being said I can’t recommend Dr. Gay and his team enough, they are fantastic! I hope I never need their services again, but if I do I know I’ll be in good hands.
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Dan Rueb
Dr. Daniel Gay is a likeable, friendly surgeon who took his time with me to answer my questions in a patient, thorough manner, explaining my options, & who offered his surgical services at the Nampa St. Luke's Hospital. I highly recommend him.
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Kelly Dawson
10 out of 10!!!! Dr. Gay and Sarah are such a beautiful blessing. I had been having intense symptoms of suspected gallbladder issues for months, but all testing was coming back normal. Because tests were coming back normal, my PCP couldn't get a surgeon to even talk to me. On month 3, she finally reached out to Dr. Gay who was graciously open to having a discussion with me and got me in quickly. He spent so much time explaining things to me & my husband in so much detail. I could immediately tell he genuinely cares for his patients, his practice, and the level of care that is provided. His standards of excellence are high. It felt so good to finally be heard. I had been suffering 4 months of intense gallbladder attacks 1-2 times a week with 2 ER visits. It was completely debilitating. After completing additional testing (which all came back normal), and my attacks becoming more intense and frequent, Dr. Gay agreed to proceed with removing my gallbladder. During the removal he found TWO gallstones that were causing the issue. It was amazing how quickly I started to feel human again. Sarah is an incredibly reliable and personable MA who took care of all my FMLA paperwork like a champ. I didn’t have to worry about a thing. Dr. Gay is such an amazing doctor (a wonderful human) and so down to earth that I felt comfortable with him right away. I have so much gratitude that he was my surgeon. You're doing great work Doc ... keep it up.
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Emily Richcreek
Appreciative of the office and staff, as well as Dr. Daniel Gay himself. Dr. Gay took time to listen and trust me as a patient and that what I was going through was legitimate. Between normal labs, scans, and tests, Dr. Gay took the time to trust what I was feeling and made an important medical decision; which greatly improved my health. In doing so I’m now pain free and feeling amazing. To the office and Dr. Gay himself, thank you for listening and thank you for the wonderful care you provided me. Also this office is amazing with children! Had my pre-k shadow tripping at my feet the whole time. They did amazing keeping him occupied and loaded on suckers. They’re all amazing.
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Glenn Mabey
Did a fine job
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Stewart Galbraith
Referred to Dr. Gay for bilateral inguinal hernia surgery. He explained the procedure well, and the follow-up appointment was also informative. Recovery has gone well, with no complications. Overall, I am very pleased with his service.
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Byl Kravetz
Start to finish, Dr. Gay and his staff were friendly and efficient. All of my questions were answered and the procedure went as smoothly as a procedure can go. Highly recommend their services.
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Dan Cunningham
I couldn’t ask for a better experience than with Dr Gay. Very happy. Not only a good surgeon but takes the time to get to know you. Very please
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Dr. Daniel Gay, Member of the Independent Doctors of Idaho