1st colonoscopy- do i have to take all the laxatives?

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New Member

Date Joined Nov 2007
Total Posts : 7
   Posted 12/10/2007 8:52 PM (GMT -7)   
HI, I'm steph, 24/ F. I'm scheduled for my first colonoscopy next Tues because they suspect crohn's or colitis.

I have a prescription for osmo-prep. I have to swallow 32 pills of that. And 4 ducolax before i start the osmo-prep. I'm just wondering-- I'm only 106 lbs and I know that they prescribe the same doses of the prep for everyone. Because I am of a lower body weight, do u think I can get away with skipping 5 pills or so at the end? My mom has had the golitely liquid and didn't drink the whole thing (she's about my weight as well) and she didn't have a problem during the procedure-- they were able to see everything they needed to and she didn't have to have it rescheduled. I hear that once I start pooing water, then I'm all cleaned out... Is that true? Can I stop taking the osmo-prep when I see just water coming out?

My appointment is ay 11am, if that matters. I think I have to take a few more pills that morning.

What do you guys think? That large number of pills just freaks the hell out of me...
I'm really nervous about the prep overall... especially worried that I'm going to pass out or go into shock (being a nursing student does NOT help because I can think of about 10 bad things that could possibly happen to me!)

Should I drink gatorade or pedialyte or something else?

Thanks guys! :)

Veteran Member

Date Joined Apr 2006
Total Posts : 733
   Posted 12/10/2007 9:11 PM (GMT -7)   
Ugh, I just did the Osmo Prep.  I didn't have to do the dulcolax.  I took ALL the pills.  The first night, I vomited several of the pills.  The next morning I didn't want to wake up to take the last pills.  I had a dry mouth though and they went down a million times easier than the ones the night before.  I had very weird bms, with the other preps, it was more explosive and quick.  This time I was on the tiolet for hours.  I was so glad I had prep H wipes and rectal pain medicine because I was so raw.  You could drink whatever you want, just not blue or purple stuff as far as I understood.  I ate a lot of jello in the 1st morning.  Good luck, the prep is the worst part of the test!
Diagnosed with Left-sided Ulcerative Colitis 1995 at 15
Tried: Prednisone, Rowasa & Hydrocortisone Enemas, Proctofoam, Sulfasalazine, Asacol, Probiotics, Fish Oil, Canasa, Enotcourt, Colazol, Proctocort, Anamantle...
Diagnosed with Ulcerative Proctitis with rectal fistula in 2004, put on Remicade
2007:Increased Remicade dosage-660mg every 6 weeks,diagnosed with Psoriatic Arthritis & Fibromyalgia
Current meds: Remicade 660mgs every 6 wks, Lomotil, Tramadol, Darvocet, Clorazepate, new meds I am about to start: Prograf, Cymbalta, Lyrica

Regular Member

Date Joined Dec 2006
Total Posts : 177
   Posted 12/10/2007 10:38 PM (GMT -7)   
I would take the full dose, just to be safe. You wouldn't want to go through all that and then have the doc say it's not good enough. But if you absolutely can't get the last few down, don't force yourself. Yes, drink gatorade! It'll keep your electrolytes better balanced and maybe give you some energy. You shouldn't pass out or go into shock, so try not to worry about that. Just make sure you stay hydrated before and during the prep time, and don't do a lot of strenuous activities. I've found that it helps a lot to go on a liquid diet a few days before the prep- I do any liquid or soft food three days before, clear liquids the day before, and just water and gatorade the day of. I'm always starving by the time the scope is over but it makes the cleaning out process a little easier. Good luck!

Regular Member

Date Joined Dec 2007
Total Posts : 47
   Posted 12/11/2007 12:14 AM (GMT -7)   
I had the golytley prep last time (October 07). I could not even get 8 oz down. So, instead, I drank lots of water. I had been on a liquid only diet for the previous 24 hours, so by the time I had the scope, I had not had anything to eat for about 2.5 days. I told the doc, and they went ahead and did the scope, no problem. I also had taken teh dulco lax. So...I would say, If you've had all you can take, you've had all you can take. You do run the risk of not having a complete scope, but it sounds like you have prepped better than I did already!

Diagnosed with Crohn's 2002 - 5 surgeries for peri-rectal abscess in 2002-2003
-no meds since summer 2003
-currently taking multivitamin, exercising and drinking lots of water

Elite Member

Date Joined Apr 2005
Total Posts : 14995
   Posted 12/11/2007 7:35 AM (GMT -7)   
I always only use one bottle of the Fleet Phosphosoda and it cleans me out no problem.
Been living with Crohn's Disease for 32 years.  Currently on Asacol, Prilosec 60 mg, Estrace, Prinivil, Diltiazem, Percoset prn for pain and Calcium.  Resections in 2002 and 2005.  Recently diagnosed with Fibromyalgia and doing tests to see if I have Inflammatory Arthritis or AS.

Veteran Member

Date Joined Sep 2006
Total Posts : 2527
   Posted 12/11/2007 2:02 PM (GMT -7)   
Just make sure you have a lot of clears around to have. I have done the visacol prep before it is on the same idea. Osmoprep has staarted to be the prep rather than the visacol now. teh visacol was a larger pill too. With the Visacol when it first came out you had to take a total of 40 pills and they were bigger than a multi vitamin. They then changed the amount of visacol you had to take it went to 28. When I was severely constipated according to my old GI I had he made me do the 28 visacol just to clear things out. I go for another colonoscopy next week and will be doing the osmoprep and I weighed about 100 pounds and each prep I have done with the pills I have taken all of the pills prescribed. Before the pills came around they had me prep with golytely, citrate of magnesia and many other ones. None of those preps ever worked for me I would always vomit causing the poop to stay just where it was and they knew rescheduling the tests would not help since I would just vomit it up again. What they had to do was manually clean me out...not fun glad I was asleep for that.

I have to get the osmoprep picked up luckily they have samples at my GIs office but since I am on pain meds I cannot drive that an now my car's power steering pump died that even my husband has trouble steering the wheel on my car. I think my mom is supposed to pick it up for me and I am having it done at the hospital since I have such a high tolerance for the traditional meds they use to knock you out so I needc general for it yay me ugh

GL with your prep...I weigh 97 pounds and will have to take all the pills according to the prep instructions
Dx with Crohn's 1987, symptoms as early as 1984.
Temp iliostomy February 2007, reversed June 2007, Ovarian cysts, migraines, allergies (incl food allergies) , oral allergy syndrome (diff than true food allergies), Asthma, Gall Bladder removed 1999, Inguenal hernia 1987

Veteran Member

Date Joined Sep 2006
Total Posts : 2527
   Posted 12/11/2007 2:06 PM (GMT -7)   
Oh forgot to add not only is it purples and blues as far as clears to avoid but reds as well since this can cause it to appear as blood during the scope and you dont want them thinking there is blood when it in fact is say cranberry juice. I personally cannot handle any flavor gatoade except the lemonade flavor and that one is nto clear but I typically have lime jello...yup my fav flavor, I have italian ice lemon flavor, college inn chicken broth and or beef broth, tea, ice handy. If you want water that has added electrolytes drink smart water. there are a few other kinds of bottled water that have added electrolytes just to let you know though they do not have as many electrolytes as the sports drinks.
Dx with Crohn's 1987, symptoms as early as 1984.
Temp iliostomy February 2007, reversed June 2007, Ovarian cysts, migraines, allergies (incl food allergies) , oral allergy syndrome (diff than true food allergies), Asthma, Gall Bladder removed 1999, Inguenal hernia 1987

Regular Member

Date Joined Oct 2007
Total Posts : 390
   Posted 12/11/2007 7:26 PM (GMT -7)   
The last colonoscopy I had was 2 months ago, by my new dr - he is not nearly as good as my old dr who I had before I moved.  I asked him about the results (weeks later, when I was better) and he said they only went halfway up the colon b/c there was stool in the way and they didn't need to go any further based on my prior dr's diagnosis of Crohn's Colitis.  I think this dr was just being lazy b/c I had been very sick for at least a week and had not eaten anything in 3 days in ADDITION to the prep so don't see how there could have been ANYTHING in his way but that's what he said.  So it depends, they can do an emergency colonoscopy if they have to without a prep, it just is harder to get a good diagnosis and I am sure is more troublesome (read: messy) for the dr and nurses. 

Regular Member

Date Joined Jun 2006
Total Posts : 139
   Posted 12/12/2007 6:30 PM (GMT -7)   
I just did the Osmo-prep two days ago and found it much preferable to the Go-Lytely "jug."  It is a lot of pills, but you don't have the nasty aftertaste.  Be prepared to drink a lot to wash them down!  I didn't do any  pills other than those, but I have had two resections now and things move through pretty quickly!  My dr. had me on soft foods (easily digested) the day before the prep and then clear liquids the day of it. I think I could have easily gotten away without finishing off the prep, but did it anyway to be super safe.  Good luck!  The prep is always the worst part.  You won't remember what they do to you!
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