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MiraLAX User Reviews & Ratings

MiraLAX has an average rating of 7.1 out of 10 from a total of 255 reviews on Drugs.com. 64% of reviewers reported a positive experience, while 24% reported a negative experience.

Reviews for MiraLAX

  • Lea
  • Taken for less than 1 month
  • May 30, 2020

For Constipation "I just had to share in case anyone else was going through the same thing. I’ve been having major issues with hemorrhoids, fissures, and honestly who knows what else. I could only go every 3-4 days and it would be so painful. I would panic before I went. I would be in extreme pain for up to 8 hours after each BM. I was afraid of living. After an extremely painful BM, one I almost couldn’t pass myself, I decided to try MiraLAX. I had already changed my diet, upped my fiber, drank excessive amounts of water. 3 days after taking this, and 3 days after my last very painful BM, I went. And it was soft, quick, and only a little painful (a 1 or 2 on a pain scale instead of a usual 8-10). I cried, from happiness. I didn’t think I could ever not be in extreme pain and fear. If you are suffering in silence, please give this a try. It takes time to work. I take a full cap every day. Might need to adjust to be more regular but we’ll see. But also make sure you see a doctor"

10 / 10
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  • Cano
  • Taken for less than 1 month
  • June 14, 2019

For Constipation "Although MiraLax works, it makes you have ice cream-like soft serve bowel movements. The bad part for me is I will feel like I have gas and will just let it go, which you shouldn't. Don't trust a fart - you will poop on yourself. For real. I just did. You also need baby wipes after bowel movements; otherwise, you will go through a whole roll of toilet paper trying to clean up your backside. I'm glad I've been able to have movement, but I'm not okay with the side effects of it. I may just start taking something else to produce bowel movements. Maybe I'll try Benefiber and see what that does. But it took about 2 days for me for it to work. I have to take Excedrin PM for me to sleep, and I think that's what causes my constant hard ball constipation. So this helps, but I can't be at work and poop on myself and/or not have wipes to get fully clean. It seems to just cling to the backside."

6 / 10
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247 Report
  • Kitte...
  • Taken for 6 months to 1 year
  • October 24, 2019

For Constipation "I have had IBS since I was about 7 years old. Back then, there was no such thing as IBS. Finally, at age 15, I was told I have IBS. Back then, I got severe constipation, then severe diarrhea with such bad cramping! Then at age 20, it just turned to just constipation. So from the age of 20 till last year, I only went 2 times a week. I could not take anything due to the cramping. Then I found Milk of Magnesia, which did work, but I had to get the right dose, usually the child dose. About 8 months ago, I got so constipated! I always thought Miralax was harsh. So, since I had not gone in almost 2 weeks, I would try anything! I took it for 2 days, then I had the best bowel movement I can remember! Now I take it about 1 time a week, with NO cramping and NO diarrhea. From age 20 to my current age, I had only had those round balls of stool. Now when I go, it is sausage-like - how it is supposed to be! To be honest, I just can't believe how large and long my stools are! Have a great day everyone! You have got to try this!"

10 / 10
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211 Report

Frequently asked questions

  • anony...
  • May 23, 2020

For Bowel Preparation "If you've got IBS-C and motility issues like me, this should be a good read. I was terrified because I know how horrendous the cramping/abdominal pain can be when taking laxatives, even ones as 'gentle' as MiraLAX. While the feelings of fullness and slight nausea persisted, this prep wasn't painful and I didn't experience cramping. I'm thin, small, and VERY sensitive to even small doses of meds, so I thought this bowel prep was going to wreck me. But it absolutely didn't. Remember, people only post reviews when they've had an experience SO far out of the norm, they felt the urge to warn others. The grand majority of us -- even with IBS and motility issues - get through this with moderate discomfort, yes, but no vomiting, cramping, or spasming."

9 / 10
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  • Anonymous
  • February 13, 2014

For Constipation "I was diagnosed with colonic inertia and was scheduled for surgery to have my colon removed and the small intestines attached to the rectum due to chronic constipation. I could not have a bowel movement without the use of an enema and was hospitalized several times due to impactions. The last time I was hospitalized I was given MiraLAX and since then I have had no problems with constipation. I take it once a day or once every 2 days and it has worked wonders for me. I am able to have a bowel movement almost every day with no problems. I have experienced no side effects at all. Since it has been working, I have decided to opt out of the surgery. It has been so wonderful to feel normal again. I have been so relieved in not having to worry about painful bowel movements, it's great."

10 / 10
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Are you taking this medicine?

  • Shirl...
  • February 24, 2014

For Constipation "I have had Irritable Bowel Syndrome-chronic constipation since 2001. I have been to hell and back. Been in the hospital SEVERAL times for being so 'backed up'. I have been on several different meds and OTC things for constipation. My gastro doc finally told me one of the reasons I suffer gas (can't burp) is because of being backed up. She put me on MiraLAX LONG term. I take it once a day. If you suffer or know anyone that does get on MiraLAX and never be without it."

10 / 10
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279 Report
  • Serene...
  • Taken for 5 to 10 years
  • May 18, 2014

For Constipation "I have had very painful irritable bowel syndrome-constipation for most of my life and have gone as long as three weeks without a bowel movement. It hasn't responded to changes in diet, exercise regimens, or fiber supplements. In fact, the fiber made it much worse! Other laxatives either don't work or wring me out for days. My doctor prescribed MiraLAX in 2008 and I have taken it daily ever since with no problem. I still don't go every day, but when I do go the stool is soft, and the motion is easy and painless. I expect to take MiraLAX forever, and have no problem doing so. It's a beneficial, versatile medication that's definitely worth a shot if you're battling constipation."

9 / 10
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262 Report

More FAQ

  • sk_sen
  • Taken for less than 1 month
  • December 18, 2012

For Constipation "I had been backed up for at least half a year when things went from bad to worse. The last two months, I was lucky to go once a week. My stool was so hard and big that it hurt too much to go. My doctor prescribed MiraLAX to me and it started to work a little. Then, she recommended I take two capfuls in two cups of water instead of one in one. After a day or two, I went to go and it literally went from 100% bad to 100% great. I was not only able to go but it didn't hurt at all. It was so amazing to finally not be in pain that I literally cried. I would absolutely recommend this product to anyone with that kind of constipation."

10 / 10
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254 Report
  • LilB
  • Taken for 6 months to 1 year
  • January 17, 2021

For Bowel Preparation "I'm about to have my 15th colonoscopy. I'm only 53 but due to cancer, I have one a year. I've tried every prep under the sun. The last colonoscopy was January of 2020. I used Dulcolax, Magnesium Citrate, and MiraLAX. Now I've learned from experience, I stop eating meats a week before the procedure. I only eat soft foods, and 2 days before, I switch to just liquids. I did great with the cleansing. The only problem I had was with the Magnesium Citrate; once I drank that bottle, I vomited for almost an hour. Not nice—it was coming out of both ends. I only drank half of the MiraLAX and was clean. I mixed mine with apple juice; I can't stand Gatorade. Wishing everyone luck with the cleansing!"

10 / 10
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103 Report
  • Anonymous
  • May 27, 2014

For Constipation "My experience with MiraLAX was above and beyond amazing, unlike any other. After suffering from constipation all my life and after trying every single method and being hospitalized, and dealing with several other issues due to my constipation such as anemia, underweight, I was put on MiraLAX. At first, I didn't want to take it because it was slow, but my doctor explained to me that it's supposed to help me go to the restroom on my own, and that's exactly what I've been doing for 5 years now. I went from having a bowel movement every three weeks to every other day and now daily on my own. I still take MiraLAX but only randomly."

10 / 10
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221 Report
  • AF91
  • July 18, 2013

For Constipation "I had a partial bowel obstruction and could not go. I tried several other laxatives, stool softener, prune juice, enema, fiber gummies, everything I could think of, and nothing worked! I could only poop water. I tried MiraLAX and within 2 days the obstruction started breaking down, and within 1 week I started pooping normally! I was scared I was going to have surgery. I highly recommend this product."

10 / 10
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228 Report
  • Ruffled
  • Taken for less than 1 month
  • May 18, 2022

For Bowel Preparation "I have a paralyzing fear of vomiting, which caused me to delay getting a colonoscopy for several years, even though I had suspected I had hemorrhoidal bleeding. My doctor prescribed Miralax with Dulcolax along with an anti-emetic (Zofran). I was so anxious I popped an Ativan before starting. I took (2) dulcolax followed by 32 ounces of Gatorade mixed with 1/2 bottle of Miralax a couple hours later. Early the next morning I drank the second 32 ounce bottle mixed with the remaining Miralax. I was instructed to take the Zofran 30 minutes prior to each dose. What a breeze. No bad taste, no nausea, no cramping. Just chills for a few minutes once things got going. I did not feel sick at all. I followed a low-residue diet for three days prior to my liquid-only day and had an excellent cleaning. I only wish I would have known about this option sooner. They discovered I had Stage 3 colorectal cancer. It took nearly a year of treatment and I nearly lost my life. Please don’t delay."

10 / 10
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65 Report
  • DJano
  • January 13, 2020

For Constipation "I have been taking MiraLax for about 6 months now. I was put on Suboxone for opioid dependency. One of the side effects from Suboxone is constipation. I used to spend hours in the bathroom every night trying to have a bowel movement. I tried every fiber supplement. I tried every laxative and they just tore me up. The stomach cramps were awful and still very little bowel movement after straining for hours. Finally, I told my doctor I can't keep doing this. It's horrible and miserable. He said, 'Get MiraLax.' I was skeptical but agreed to try it. I have not been constipated since that day. I take one dose daily at the same time every day and have a full bowel movement every day at the same time. The only side effect I have noticed from MiraLax is the stool has a horrible smell. I hope there are no long-term side effects from MiraLax because this product has been a lifesaver for me. My doctor tells me it's totally safe because it stays in your GI tract the whole time. Simply in and out, repeat!"

10 / 10
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  • Feeli...
  • October 15, 2013

For Constipation "FINALLY! My whole life I've had a problem going number 2 so much so I would only go 2-3 times the entire month. These past few months, however, things took a turn for the worse. My poop became severely impacted. I would push and push for hours, only to get a pea-sized amount out. I couldn't sleep because I could feel the pain and pressure there. It was bad. I tried liquid laxatives you drink, and they did the trick, but the second they wore off, the constipation and pain were back. Then I heard about Miralax and had my fiancé"

10 / 10
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193 Report
  • HRano
  • January 23, 2020

For Constipation "I’m on an opioid for osteoarthritis in my spine & a tumor pressing on my spine that is too risky to operate because there’s a very high chance I’ll be paralyzed, so I can’t exercise to keep my bowels moving. Usually after 2 doses of Miralax, once a day, & lots of water, I start going again. It does make the movement softer. Even though I take the flavorless powder, I can still taste some sort of awful taste. What everyone needs to realize is that we are all different & our systems are going to react differently. One thing may work well for 1 person but not for the next. So just because there’s a bad review of this product for 1 person doesn’t mean it’s bad for everyone. Like with all the side effect complaints, for some people, I have never had those effects ever. I start taking this product if I haven’t had a bowel movement after 3 or 4 days. It’s a trial & error thing in order to know if this product is right for you."

10 / 10
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100 Report
  • Angie
  • September 4, 2020

For Bowel Preparation "I used the MiraLAX in preparation for a colonoscopy. I'm 23 years old and a female. I was so scared that this was going to make me throw up as I have a severe fear of vomiting. This was a split dose mixed in with Gatorade, and it wasn't as bad as I thought it might be. No need to be anxious! I took my first dose at 5:30 pm and was on the toilet at 7:30 pm. No vomiting, just a lot out of the other end. Be prepared to run to the bathroom multiple times and have good soft toilet paper on hand. Other than that, this was a good experience for prep!"

10 / 10
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  • ljeann
  • February 18, 2013

For Constipation, Acute "I have Irritable Bowel Syndrome with constipation. Before taking Miralax, I would go days without a bowel movement. Nothing but misery. After talking with my doctor about Miralax, she suggested that I take it every day for one year. Upon doing so, I had a bowel movement and sometimes several every day. I got to the point that I sometimes was losing control so started cutting back on how many days I took Miralax. I now take it 2-3 times a week, usually have a bowel movement daily and have control of the situation."

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  • DJano
  • Taken for 5 to 10 years
  • May 25, 2019

For Constipation "Digestive problems run in my family. I personally suffer from chronic constipation. No matter how much water I drink or fiber I consume, I still have constipation. Miralax is the ONLY med that relieves my constipation without pain or discomfort. I always know it is reliable and helps produce a passable BM within hours for me. If I am very constipated, sometimes it’ll take about a day to go into effect. My doctor has prescribed it to me in the past, but it is easiest if I buy it in bulk at a store instead of getting refills. On days I am not constipated, I continue to use it at half strength to keep it in my system and things running smoothly. I’d recommend this to anyone who suffers from constipation."

10 / 10
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101 Report
  • notha...
  • Taken for less than 1 month
  • June 29, 2021

For Bowel Preparation "Was prescribed Miralax & Dolcolax combination for colonoscopy prep, I was in tears hyperventilating from the horror story reviews in this forum. I came here to say: IT IS NOT THAT BAD. I’m 23 years old and (still) have a horrible fear of vomiting. I was petrified to take the doses prescribed because of some of these reviews. I forced myself to do it for the sake of getting this thing over with. Took 4 dulcolax at 4pm along with an anti nausea medicine, followed by the miralax solution starting at 5 pm. A couple of normal bowel movements within the first hour, then water like bowel movements every 20-30 mins until about 11pm/midnight. No pain, no vomiting, no nausea. Just diarrhea as intended. You’ll be a little chilly but NOTHING unbearable. You got it"

9 / 10
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68 Report
  • IPoop...
  • Taken for 6 months to 1 year
  • September 9, 2014

For Constipation "I have gastroparesis and rarely have a bowel movement on my own. I've gone 3 weeks easily without a bowel movement. It's to the point that when I do go on my own, we know that I am severely constipated and that it HAS to come out. (Abdominal x-rays continuously show I'm backed up, even after going). MiraLAX is not a 'miracle medicine' for me. It works, but only after a few days' time. However, considering that typical laxatives only cause me gas and bloating, but no relief, I can't really complain. Magnesium citrate, Linzess, Reglan, Amitiza have all failed me. This is the only relief that I can ever get."

10 / 10
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159 Report
  • 505nm
  • July 30, 2013

For Constipation "My daughter has been taking MiraLAX since she was 5. Prior to starting the MiraLAX regimen, my daughter would suffer from daily stomach pain. She was finally diagnosed with a chronic constipation problem and put on MiraLAX. She has been using it for four years now and very rarely complains anymore (if at all). You may have to play with dosage from time to time. She started on a heavy dose and we were then able to taper down to a much smaller one. We are happy with how it has helped her. Of course, we would love it if she didn't have to use anything at all! But we are very grateful to have something that helps her so much. She doesn't have any side effects from it--that is another positive about this product. Give MiraLAX a try."

10 / 10
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168 Report
  • Happy...
  • June 23, 2018

For Constipation "I've had constipation my whole life! I've had to watch everything that I've eaten and avoid all red meat, rice, bagels, or anything else that might clog me up. The past 10 years, I've done water enemas once or twice a week. I talked to a doctor about 2 months ago during an emergency visit for severe stomach pain. He recommended MiraLAX, and I rolled my eyes because I've been on every kind of laxative there is on the market... Pain, gas, diarrhea, all that stuff. The first night, I poured the dose into a cup of tea and drank it down. The next morning I completely emptied out. No cramps, no pain, just emptied out. The doctor said I could take it every night or even twice a day... Indefinitely! I've taken it every night with a big cup of herbal tea, and every morning after my first cup of coffee, I go to the bathroom and just go. I feel like what I've heard normal people feel like. I have great days and a sense of calm, even working at a stressful job! LOL I don't ever want to be without this..."

10 / 10
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  • Ctblue
  • Taken for 1 to 6 months
  • July 6, 2014

For Constipation "Since December, I've had chronic constipation and weight loss. I was taking Miralax intermittently for the months following. Twice, I had to take magnesium citrate as if preparing for a colonoscopy because I couldn't go at all. Since then, I took Miralax every day until June when my general practitioner and gastrointestinal doctor's office recommended Linzess. I stopped Miralax and took Linzess for a week. I couldn't go for a full week! The magnesium citrate didn't help this time, so I ended up in the hospital for treatment. I asked for Miralax while I was in the hospital, and they complied. I discontinued Linzess and have been back on Miralax for 2 weeks. Things are now working satisfactorily again. I will not give up Miralax again."

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  • Chris...
  • Taken for 2 to 5 years
  • November 6, 2014

For Constipation "When taking MiraLAX daily, it's very effective in moving your bowels. The only downside is that it takes a few days for it to start working, but once it starts working, you'll feel a lot better! I stopped using it because I thought I wouldn't get constipated again — bad choice. I got constipated because of the medications I take (painkillers). Anyways, I recommend you take it once a day or every other day to prevent getting constipated. MiraLAX works, just give it time, and don't miss a dose if you get severely constipated like I do!"

8 / 10
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  • Anonymous
  • Taken for 1 to 6 months
  • December 19, 2019

For Constipation "I suddenly developed severe constipation. I suffered for months before I went to the doctor. She told me to take MiraLAX. It didn't work initially, so she said to take it more often, like 2 times a day. I did that and still nothing. So, she told me to try 4 times a day - and voila! A miracle. Now I'm back down to once a day now - but it's the best thing that happened to me this year!"

10 / 10
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78 Report

Reviews may be edited to correct grammar/spelling or to remove inappropriate language and content. Reviews that appear to be created by parties with a vested interest are not published. This information is not intended to endorse any particular medication. While these reviews may be helpful, they are not a substitute for the expertise, knowledge, and judgement of healthcare professionals.