MIRALAX Reviews (POLYETHYLENE GLYCOL 3350)

Average Rating: 3.3 (535 Ratings)

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 LAXATIVES

 Type: Over-the-counter Drug

  

MIRALAX  (POLYETHYLENE GLYCOL 3350):  This medication is used to treat occasional constipation. It works by holding water in the stool to soften the stool and increases the number of bowel movements. It is known as an osmotic-type laxative. This medication is also available without a prescription. If you are taking this medication for self-treatment, it is important to read the manufacturer's package instructions carefully so you know when to consult your doctor or pharmacist. (See also Precautions.)    (Sources: U.S. Centers for Medicare Services, FDA)

  

Results are sorted by Age oldest to youngest.

Key to Ratings: 1=LOW (I would not recommend taking this medicine.)
5=HIGH (this medicine cured me or helped me a great deal.)

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RATING  REASONSIDE EFFECTS FOR MIRALAXCOMMENTSSEXAGEDURATION/
DOSAGE
DATE ADDED
 
 3  Diverticulitis/constipation Acid reflux, bloating, cramping, lack of efficacy. Miralax worked very well at first, producing daily, effortless BM's. It stopped working after 3-4 weeks and now I'm taking a double dose and it's barely working. M 51 6 weeks
8/22/2009
 3  Bowel Dysfuntion/Constipation I just started to take Miralax less than two weeks ago and have had mixed results. It took five days to have a BM, after which I was able to, daily, for about a week. But already it seems not to be working as well as it was at first. I continue taking it but I'm still constipated. I've been starting to get acid reflux, which, I'm afraid, may be a reaction to the Miralax. I've tried everything else possible. I had a bowel resection in February that almost killed me, spent almost six weeks in the hospital, endured several infections, and after all of that, I'm just as constipated, nauseated and fatigued as I was before the surgery. I was hoping that Miralax would get me through until I can figure out what to do next. I'm hoping and praying that I can find a regimen that works for me without significant side effects. M 51
7/4/2009
 2  IBS with chronic constipation Increased stomach pain, gas and bloating I thought this product was the answer to my problem when I first started taking it. Now I am having either constipation, loose stools or diarrhea. I will go back to the doctor to discuss. I feel for anyone who suffers with the nightmare of IBS. F 51 10 days
15 mg 1X day
6/9/2011
 2  I recommend something else. A neurodev. friend of mine warned against using Miralax for our son who had extreme constipation and who has a predisposition to Crohn's because she said that many people have a "leaky gut" and Miralax could possibly get into the central nervous system and cause problems. For IBS and Crohns.... check out the published medical studies at www.pubmed.com using the word HELMINTH. There is a product called Lumbricus Tonic at that has the earthworm extract. Wanna get well? Quit the prescriptions and find something natural that works. F 51 0 days
1/30/2010
Email
 1  colon prep After 1 hour, severe gas, bloating, nausea, dizziness, headache, and increase in BP. After 5 hours I just gave up trying to finish, every sip started it all over again. Next morning I'm still belching. M 51 1 days
8.3oz 1X day
2/14/2012
 1  Chronic constipation Insomnia. Awake all night since day 1. Minimal help with constipation. F 51 4 days
Capful 1X day
7/31/2020
 5  SEVERE internal hemorrhoid Some extra gas generation (not severe) I had been prescribed steroids and multiple prescription medications that helped a bit (none actually as good as Prep H suppositorys - which are pretty good). None did the trick for more than a week or two, when I was soon again in MISERY (really - I cannot express it strongly enough). As a last ditch effort before surgery (apparently UGLY), my doctor suggested 17 g Miralax be combined with my daily metamucil (2-3 tbsp) routine, and that I should drink at least 8 x 8 oz glasses of water per day (I live at high altitude). For three months now (the longest I have gone in years) I am problem free completely - like a kid again. I do notice some extra gasiness (overnight usually only), but none of the neurological things others cite. So far I have to say this is a miracle as my quality of life has moved from awful to excellent. M 50 3 months
17 g 1X day
3/27/2011
 5  Constipation due to colon resection None. I had a colon resection and now diverticulitis in the newly pulled down section of colon. (Yeah, bummer.) Constipation resulted and the straining to go just makes the diverticulitis worse. Miralax has really worked well for me. Within 12 hours after the first dose, I was able to go for the first time in days. Now, I think I'll back off it a bit as I'm going a bit TOO frequently! F 50 3 days
12/1/2006
 5  Gastro Specialist recommended Gas, loose bowels if I take too much. It's best if you use the same amount every day to train your system. My Mom died at the young age of 57 and never knew of this drug, she suffered from chronic constipation all her life and so have I. I'm a firm believer in it and recommend it highly! F 50 3 years
11/30/2005
 4  chronic constipation Has worked great for me. I use the generic brand Clearlax found at Sam's Club! F 50 2 weeks
1 capful 1X day
4/23/2010
 4  Colonscopy Prep Immediately after taking the first glassful I started to feel very cold, I could not warm up. After the 2nd glass I got an optical migraine. Migraine went away in 20 mins, chills continued into the night. I took 238 g of Miralax mixed with 64 oz of orange/lime flavored water for colonscopy prep starting at 6 pm. Taste was OK, but it's a lot of fluid to drink. Bowel movements started about 10 mins after first glassful and continued frequently for 3 hours with some movements being VERY sudden. I had a a few more small movements afterwards and was able to go to bed for the night at 11 pm. At 2 am I had the bright idea to drink a lot of water to hydrate for the morning, but 10 mins later I had to get back out of bed to expel the water. This product did the prep job well, but the chills did have me worred. I won't be drinking orange/lime anything for a while. F 50 1 days
238 g 1X day
3/10/2010
 3  colonoscopy prep Severe leg and back spasms, chills, racing heart, elevated BP and pulse, moderate bloating and abdominal cramps. Followed colonoscopy prep procedure to the letter...low residue diet for 4 days prior to prep, clear liquids day of prep. Mixed miralax w/crystal light (prep instructions gave choice of crystal light or gatorade), started prep @ 3, by 6 I was freezing and shaking, by 7 spasms began. Bloating and abdominal cramps were quite uncomfortable but would have been non-issues without the other symptoms. Prep began to work shortly thereafter, spent literally all night in bathroom passing clear liquid. Still going in A.M. and at the colonoscopy center before the procedure. Before we left the house in the morning my normally 90/56 BP was 128/79, after the procedure it was still 110/70--all acceptable, I know, but high for me. When I stood up in the waiting room to go into the prep area, I almost passed out. The procedure went well so I guess the miralax did it's job, but I've had 3 natural childbirths and they were much easier than the miralax prep. F 50
1X day
4/1/2010
 3  IBS and hard stool Loose stools, painful gas and horribly smelling gas and stool F 50 4 weeks
As directe 1X day
2/26/2021
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 2  chronic constipation Bloating, terrible gas, very soft stools that barely come out. Now I poop a little each time I go to the bathroom to urinate. I have "sharted" in my pants twice. Talk about gross. I am not having a real bowel movement any more frequently than I was before taking Miralax. I'm so disappointed this isn't working for me. I had such high hopes. I suffer from chronic constipation for most of my life. It takes forever for food to move through my system. F 50 30 days
17 g 1X day
8/21/2015
 2  colonoscopy prep vomiting, chills, cramping/pins and needles left side of body, dizziness, I followed the directions: 4 dulcolax at 3pm, then the miralax beginning at 5pm mixed with 64 oz gatorade taken 8oz every 10-15mins. Diarrhea began after taken less than half of product. Would not seem to stop all evening even though just yellow watery liquid. Began vomiting, then had cramping in left arm and leg. Was worried I might become severely dehydrated. Still had watery diarrhea when arrived for appointment. I would not like to have to take this product for this procedure again. Very unpleasant. F 50 1 days
255 mg 1X day
3/18/2011
 2  Constipation Terrible-smelling gas. Miralax works but I cannot take the gas problem I have with it, even reducing the dose. I was having to stay at home it was so bad. I'm going back to good old Metamucil. I've been taking Miralax off and on for a couple of years. F 50
11/8/2007
 1  colonoscopy prep Severe nausea within hours of first 80z; violent vomiting, severe sore throat same day thru next day, cold sweats, heart palpitations, shakes REMOVE FROM MARKET Stat. Unsafe product. F 50 1 days
2-119g bot
1/6/2016
 1   Spent my 50th birthday last year in the hospital, passed out weak shaking bloated.after ever test imaginable. They sent me home to increase fluids and blamed dehydration. Well ironically a year later I decided to give it a try. Well again same symptoms! So no more ever of mirelax for me.just have to wait now again until it's out of my system. Also heart palpation.after specialist after specialist and all the expense. These people should be held responsible. Be careful folks plz. M 50 1 weeks
11/11/2015
Email
 1  no bowel movements for 2-3weeks at a time At fits it helped. I wasn't going for 2 weeks. I was bleeding rectally had colonoscopy removed polyups dr said miralax was safe for everyday. 1yr layer have breast cancer needed another colonoscopy still bleeding different dr said double dose it's ok! Now if i don't take it for one day my stomach cramps are so bad i can't get out of bed and i start taking it again it takes 3 days to work and more blood is coming out of me. PLEASE DO NOT TAKE IT FOR MORE THAN A FEW WEEKS DRINK ALOT OF WATER IS HEALTHIER! MY PRIMARY CARE PHYS. HAD TO MOVE AND NEW DR DOES NOTHING FOR ME SHE'S THERE TO GET PAID! NOT ALL DRS ARE LIKE THIS BUT****BEWARE**** OF THE MIRALAX Read above! ALSO STOMACH PAIN. I CAN'T GO WITHOUT IT. AND MY STOMACH IS SO BLOATED MY JEANS WON'T ZIP AND NO IT'S NOT WEIGHT AND THIS IS NOT FUNNY***DO NOT TAKE THAN TWO WEEKS PLEASE FOR YOUR HEALTH**** IF ANYONE KNOWS A GOOD ADVOCATE TO HELP ME FIND A DOCTORS BLESS YOU*** I AM IN REMISSION BREAST CANCER POLYUPS REMOVED RECTAL BLEEDING HACKED UP FOR SURGERY BACK SURGERY THAT CAUSED ARTHRITIS IN BACK! THANK YOU F 50 4 years
34mg
11/29/2014
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 1  colonoscopy prep Chills, vomiting, dizzy Taste was horrible. Could not stop vomiting. Never again would I use this product F 50 1 days
4/29/2009

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