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Doctor insights on: Miralax Bowel Prep Colonoscopy

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I have a colonoscopy tomorrow. I took my bowel prep of about an hour ago. In how much time will it start working? Will a gatorade/miralax mix not work?

I have a colonoscopy tomorrow. I took my bowel prep of about an hour ago. In how much time will it start working? Will a gatorade/miralax mix not work?

May not work: A gatorade and MiraLAX combination is not a common bowel prep in my experience. Miralax is an excellent laxative but if only one dose is taken, it is not likely to clean the colon out as well as is optimal for colonoscopy. A single dose might not produce a bm for a day or 2. Gatorade is an electrolyte-rich drink but not likely as effective as GoLytely or other polyethylene glycol solutions. ...Read more

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Intestine (Definition)

The gastrointestinal tract starts at the mouth, travel down the tunnel (esophagus), which connects to the stomach, which then empties into the duodenum, jejunum, and ileum---the three parts of the small intestine (@25 feet). This empties into the colon or large intestine (about 5 feet), which then becomes the sigmoid colon, rectum and out the anus. So, every morsel eaten ...Read more


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I had an endoscope and colonoscopy 2 days ago and still have not had bowel movement. Should i take miralax (polyethylene glycol). I had 3 polyps removed.

I had an endoscope and colonoscopy 2 days ago and still have not had bowel movement.  Should i take miralax (polyethylene glycol).  I had 3 polyps removed.

Should be OK: As long as you are not having a lot of abdominal pain nor rectal bleeding, it should be ok. Everyone's intestinal transit time is different. If you are concerned about not going, the MiraLAX (polyethylene glycol) should be ok. ...Read more

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What kind of bowel prep is done for a colonoscopy?

What kind of bowel prep is done for a colonoscopy?

Liquid : Usually a powder mixed in liquid like GoLytely or miralax, (polyethylene glycol) sometimes with tablets added like dulcolax. The amount of liquid is substantial, like 48oz. ...Read more

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I vomited stuff for bowel prep and colonoscopy in 7 hours. Is that okay?

I vomited stuff for bowel prep and colonoscopy in 7 hours. Is that okay?

Probably: not a good thing. call your endoscopist and notify them as they may decide to cancel or suggest another prep to try to salvage the procedure. ...Read more

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Can the virtual colonography/colonoscopy be done withOUT the bowel prep?

Can the virtual colonography/colonoscopy be done withOUT the bowel prep?

No: Virtual colonoscopy requires the same preparation as conventional procedure. Consult this site for more information on this topic. http://www.webmd.com/digestive-disorders/tc/virtual-colonoscopy-topic-overview ...Read more

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Is it absolutely essential that I drink all of the bowel prep before I have a colonoscopy?

Is it absolutely essential that I drink all of the bowel prep before I have a colonoscopy?

Yes: Yes so that your colon is clean enough. If you choose not to, the endoscopist may not be able to see everything' could potentially miss a lesion, and with an inadequate prep, i usually recommend that i repeat the scope much sooner than if i was comfortable i could see everything well. E.G repeat in 5 yrs instead of 10. ...Read more

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Am i allowed to take phergan during a bowel prep for a colonoscopy?

I wouldn't: Just take your time and drink the bowel prep -- it is very important to be cleaned out for the test. Try chewing gum in between glasses of the prep as this will take away the nasty aftertaste. Any medicine you take during the prep will likely be washed away ...Read more

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Is there a difference what kind of bowel prep is done for a colonoscopy as long as the end result is the same?

Is there a difference what kind of bowel prep is done for a colonoscopy as long as the end result is the same?

Some preps: Are more difficult or time consuming, which caues non-compliance, or result in more electrolyte abnormalities, such as low potassium. But you are right, once the prep is complete and the end result is satisfactory, then the choice of prep is not even relevant. ...Read more

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Taking Citrafleet as bowel prep prior to colonoscopy. Is it ok to eat something light a few hours later since you took your first sachet before second?

Clear liquids only: You need your bowel free of any residue which means not eating any regular food for 24 hours before the colonoscopy. You can only have clear liquids which includes sodas, water, Tea/coffee(black only) pulp-free juices and jello, but stopping everything 4 hours before the procedure. ...Read more

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Is there a pre-colonoscopy bowel prep that won't make me sit in the bathroom all night?

Is there a pre-colonoscopy bowel prep that won't make me sit in the bathroom all night?

That's the point: Unfortunately the goal of the prep is to completely clear your large intestines of fecal matter. And since there is only one exit.... Just remember why you are doing it. Good luck! ...Read more

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Doing bowel prep for colonoscopy/ged tomorrow. Only 24oz left to drink and bowel liquid isn't clear yet? Will this be a problem?

Doing bowel prep for colonoscopy/ged tomorrow. Only 24oz left to drink and bowel liquid isn't clear yet? Will this be a problem?

Keep drinking: Finish all liquid, and you will probably be ok. As long as the liquid is watery and without solids you should be ok. ...Read more

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What is the best flavor of that drink for the bowel prep for colonoscopy?

Your choice: Colon lavage preps are designed to "wash through" the gut without being absorbed. As such, flavors used are restricted to sugar-free products (sugar promotes water absorption), & should avoid colors that stain the gut (red-colored preps are particularly troublesome when searching for bleeding sites). Commercial flavor choices: cherry, orange, wild berry, lemon-lime, pineapple, or no flavor added. ...Read more

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Drank 80% of my bowel prep for colonoscopy then eventually fell asleep. Will I still get to have it done?

Drank 80% of my bowel prep for colonoscopy then eventually fell asleep. Will I still get to have it done?

Give it a try: It may be too late for this answer, but you could have given yourself a fleet's enema in the morning to ensure a better colon preparation. Wish you good health. ...Read more

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How to use Suprep Bowel Prep Kit for patient. Colonoscopy.

How to use Suprep Bowel Prep Kit for patient. Colonoscopy.

Here's helpful link: ...and video: http://www.suprepkit.com/dose-instruction.htm (in English and Spanish versions) ...Read more

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Does bowel prep medicines relieve severe fecal impaction prior to colonoscopy procedure night before ?

Does bowel prep medicines relieve severe fecal impaction prior to colonoscopy procedure night before ?

Possibly: Bowel preps are taken to assure that the colon is relatively clean as the scope is passed so that even small lesions in the mucosa can be visualized. Many of the preps contain polyethylene glycol which absorbs liquid into the bowel. This may help but you may need a stool softner. ...Read more

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There is a bowel prep for colonoscopy called Prepopik. Dosage is only two 5 oz. glasses and drinking lots of water. Is this a safe & effective prep?

There is a bowel prep for colonoscopy called Prepopik.  Dosage is only two 5 oz. glasses and drinking lots of water. Is this a safe & effective prep?

Prepopik: is relatively NEW but is approved by FDA for colonoscopy prep in adults HOWEVER COLONOSCOPISTS (Doctors who do the tests ) HAVE THEIR OWN PREFERENCES FOR WHICH PREP IS USED! Thus ASK that Health care Provider if Prepopik is OK! Good Luck! Dr Z ...Read more

Dr. Charles Cattano
2,028 doctors shared insights

Colonoscopy (Definition)

Colonoscopy is the procedure of using a long flexible camera to visualize the entire colon from the inside with the option to take pictures, video, perform biopsies, remove polyps, etc. Generally people are sedated and do ...Read more


Bowel Prep (Definition)

This is the flushing out of intestinal contents, usually before colonoscopy or colonic surgery. A solution which traverses the intestines without being absorbed is taken orally, causing a complete cleansing of solid ...Read more