I, like others, go a week or longer without a BM and when I do have one the stool is very hard and I strain excessively. Miralax does help me but it makes my body feel extremely cold. When I had my last colonoscopy, after drinking the gallon prep, I was so cold I was shaking uncontrollably and ended up in the ER. I am gluten free, fructose free, and dairy free--anyone else with these issues? Also, curious whether there is any type of sugar in Miralax.
Has anyone had a problem with feeling cold after using Miralax?
Question posted by looking for help 303 on 30 Dec 2012
Last updated on 9 November 2022 (3 months ago) by Thebizette
I am doing prep now and have been freezing. So much so that I built a fire and wrapped in a blanket. Decided to google symptom and of course found this. Wondering if it’s from the polyethylene glycol. Will have to do more research but good to know I’m not alone…
2 hours ago, I took a single dose of Miralax because my doctor prescribed it for constipation. Within 30 minutes I began to get sick: nausea, chills, and full body aches. Also I’m itchy, my nose is stuffed up and my chest is heavy making it hard to breathe. It felt like all of the sudden I came down with the flu/an allergy. I knew it had to be the Miralax. I thought I was going to puke, so I took some anti-nausea medication that I have on hand. Surprisingly, my body felt warm to the touch. I took my temperature- 96.4 degrees! I have never seen my temperature go below high 97s.
I could not lay in bed without shaking, writhing my body around, and wanting to jump out of my skin- so I took a shower. Before entering the shower, my entire body was shivering (you know when your jaw shakes uncontrollably? I had that too).
As I lay here 2 hours later with cramps, I’m still constantly “dancing” with the lower half of my body. Luckily, I came across this forum. I’m really lucky I only took a single dose of Miralax. I couldn’t imagine how much worse I’d be right now if I took as much as everybody else here. Thankfully, when my time for a colonoscopy comes around, I’ll know when they ask me to drink Miralax that I will refuse any laxative with Polyethylene Glycol.
I am using suprep, doculax and miralax. I just searched cold and colonoscopy prep because I am under two blankets with two snuggly pets after my second round of the prep beyond freezing! It’s 68 in my house which is usually cause for a fan but I’m still in socks with a extra large heating pad on my back shivering!
I am not dehydrated at all, I have drank more than a gallon of tea and broth and ginger ale. I took some extra supplements to make sure not to flush out all my electrolytes. Potassium, sodium and magnesium.
Will ask the doc later.
I have been prepping for 24 hours for a colonoscopy and endoscopy today. I’ve been terribly cold since last night. I was wondering if it was a side effect of dehydration more than the meds but I stumbled into this thread. I do think it’s common. It’s uncommon for me, in the middle of peri menopause and usually experiencing hot flashes.
Glad I found this forum, but interested to see no one’s gotten a real answer yet. I’ll have to ask my doctor this afternoon when I go in for my colonoscopy. This is my first time and I was surprised when, after drinking the prep, I became unbearably cold. I typically run hot, so this was strange and I thought maybe I had a fever. No dice. All I can say is, I’m definitely taking a very hot bath soon because this cold is hard to beat.
Hello! I am just wrapping up the prep and with both times I drank it I got extremely cold and had to add layers of clothes. It took hours to get warmer. I’m so glad to see there posts because I was beginning to think I had contracted the flu!
I know this was posted many years ago, but I’ve just finished my colonoscopy prep and thought I would add my 2cents in. I’m a healthy 18-year-old girl (as far as I know) and am having a colonoscopy due to a family history of Crohn’s. Today I slugged down my prep and managed to get it all down, then started frequently going to the bathroom (ouch! note to self, get softer toilet paper next time!). About an hour into my toilet adventures, I began to feel nauseous and unfortunately vomited up about half of my prep. Whatever I absorbed still seemed to do its job and for the next few hours I continued to go to the bathroom until my stool was completely a clear liquid. After my bathroom breaks became less frequent is when I noticed the chills set it. My face was flushed but I was freezing and decided to spend the rest of the day under my covers.
Along with the chills I’ve had occasional stomach cramps that pass like contractions and have slowly stopped going to the bathroom.
All in all - I have no idea why I have the chills (writing this while I still have them) as I’m not diabetic or have any known deficiencies. I guessed that maybe the dehydration of passing so much stool and also vomiting was what caused my flu-like symptoms? Just a guess. Kinda relieved to see others in the same boat.
A very common enzyme deficiency that a lot of people don't know they have can cause this. G6PDD. I drank about 4 oz of the Trilyte Prep which has PEG 3350 and absorbic acid among other ingredients and immediately felt like a hand from the arctic was squeezing the left side of my chest and my muscles began spasming. It was as cold as dry ice. I did not finish the prep and should have called an ambulance. I was experiencing hemolytic anemia. These two substances are on the "avoid list" and cause hemolytic anemia when ingested by those with G6PDD. A year and a half later, I found out I had G6PDD after ingesting Fava bean flour and experiencing the same symptoms. In the old days, it was called Favism. I now take Suprep for colonoscopy prep and that works for me with no ill side-effects. BTW over 85% of women do not test positive for G6PDD. Go to g6pddeficiency.org for more information.
Had a colonoscopy this morning and EGD. First,I learned a couple of tricks to help get my Golytely down. First half of prep I cut two small lemons in quarters, and secondly, I used a straw. Rub your tongue with lemon, leave it in your mouth while you drink through straw, or squeeze juice on tongue before and after. I got a seed and pulp first time so ended up wrapping in paper towel and squeezing. All variations helped a lot (if you like lemons). Did not chill. When you see those little lemons dwindle down it seems doable. If course do same thing for second half.
So, I understand they are now using CO2 to blow you up and I had no cramping from gas. I am now home in bed and have the shivers but no fever. (Will watch that.) Thought maybe low blood sugar from fasting.
I just made a username and password with this sight so I can answer this question. Maybe it will help someone. I had my colonoscopy this morning. Easy Peasy. But, when I told each hospital staff member about my prep experience that was yesterday afternoon, I did not get any response about it being normal or abnormal. So I came home and googled, which led me here. I used the Ducolox/Miralax prep. The first two glasses of Miralax actually tasted good. I forced down the third glass and then fought to keep it down. Then tried to drink the fourth glass and got half of it down. The chills started and I don't think anything could have made me warm. I felt like I had been poisoned. I kept deep breathing to keep from throwing up, but when I got up to walk to the bathroom, the violent vomiting started. I did not stop vomiting until my stomach had rid itself of the Miralax.
I was afraid I would have to cancel the procedure, but I drank hot tea during the evening and kept going to the bathroom. I must have gotten enough of the Miralax to do it's job, because the diarrhea became fairly clear and they were able to do the procedure today. It probably helped that I had not eaten heavy food the couple days before the prep.
I am also having pretty severe chills and shaking while doing the colonoscopy prep. I have not taken Miralax with this prep. I am almost done drinking the prep, one glass left to go. I also have type 2 diabetes but it is well controlled. I just checked my sugar and it is 85. So not likely from low sugar. When this process slows down I will be taking a very warm bath! Dressing warmer and having the heat up to 76 degrees is not taking away this chill.
Just had my first colonoscopy and I can attest to feeling freezing after taking each dose of the prep. They really should warn you about this side effect. Fortunately it was my only issue (besides the rancid taste) but I was very happy to find this forum to confirm my suspicions that this was due to the prep. I was covered in layers and blankets shivering for hours.
I’m prepping now for my first colonoscopy. The prep is Go-Lytely/peg .
I’m only one hour in and absolutely freezing! It’s 90 degrees outside and I’m in blankets and socks. This could be a long evening. I believe my mother may have had the same reaction.
I am in process of colonoscopy prep, scheduled tomorrow at 7:30. I actually googled "is it normal to be cold... "
I am so cold. I drank the last day-before glass hours ago. I see it must be normal for some of us. I am diabetic type 2. I feel fine other than the stomach upset and cold.
I am doing prep now for capsule endoscopy, I’m just about done with the prep and I am freezing! The Gatorade was barely cold so that’s not why. I checked the weather and it’s mild. On a whim I googled it and found this forum. So strange!
- MiraLax uses and safety info
- MiraLax information for Healthcare Professionals (includes dosage details)
- Side effects of MiraLax (detailed)
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