Skip to main content

Senokot and Nausea: What Users Say

Nausea: mentioned by 25 users (14.9%)

Based on user experiences from 168 Senokot reviews, the following table shows the most commonly mentioned side effects.

All user comments are moderated by Drugs.com. Each review is verified for relevance and screened for inappropriate content. Side effects are user-reported and not clinically verified.

cramps 29.2%
diarrhea 17.3%
nausea 14.9%
upset stomach 11.9%
pain 8.9%
stomach pain 8.3%
vomiting 6.5%
chills 6.0%
dizziness 6.0%
gas 6.0%

Reviews for Senokot

Commonly mentioned side effects
  • Blo...
  • Taken for less than 1 month
  • August 25, 2020

For Constipation "Due to other medical issues, I have been dealing with long-term constipation and can sometimes go a week without a bowel movement. I have tried several medications and have found Senokot to be the most gentle. My experience is fairly carefree. I take the maximum dose and have not experienced any nausea. I have had some random pains but they never last long, and find myself passing gas after taking a dosage. The end product is successful. Make sure to drink lots of fluids with and after your dose. It makes a huge difference! Also, for comparison, a while ago I tried Dulcolax and it was a nightmare. I felt so nauseated and actually vomited. Groaned and convulsed in pain for hours. Senokot did not give me any problems! This just proves everyone’s body reacts differently to products."

9 / 10
Was this helpful?YesNo
116 Report
  • Ber...
  • Taken for less than 1 month
  • June 19, 2021

For Constipation "I had a terrible experience with this drug. The worst stomach cramps I’ve ever had. Chills and nausea too. 15 hours later I feel wiped out and doubled over in pain still. My legs and calves cramped also all night and are still cramping. I would never take this again and I urge caution before taking this."

1 / 10
Was this helpful?YesNo
82 Report
  • Gre...
  • Taken for less than 1 month
  • January 15, 2021

For Constipation "Well, Senokot certainly works, but I wouldn’t take it again. The only advice in hindsight is that if you are small, I’m female and 8.5 stone/120 lbs, take half a tablet, as my husband is 12.5 stone/175 lbs and it’s still one tablet for him on the directions. I hadn’t been for a couple of days, they were in the medicine cupboard, so I took one tablet before bed on a Friday night having never taken a laxative before. At the witching hour of 3 am, I only just made it to the loo in time. I thought I was hooked up to a hose. I don’t know about emptying your bowels... I thought my bowels would be following on out, closely followed by my intestines and any other vital organ that got in the way. And there I sat for 4 hours. When it felt safe to leave the bowl, I lay on the bed like a shriveled prune for another 4 hours, feeling dreadful and nauseous. Be warned! 100% effective but with side effects."

10 / 10
Was this helpful?YesNo
64 Report

Frequently asked questions

  • Anonymous
  • April 25, 2020

For Constipation "I have IBS and sometimes take usually only half a tablet before going to sleep. I have mixed results generally, but last night I had a similar experience to some others I’ve seen on here, in that I woke up a couple of hours after taking the tablet, feeling unwell with cramps. Then I got the cold sweats and dizziness, and I crawled to the bathroom and retched and vomited. No bowel movement, just cramps. I went back to bed and still felt pretty sick and was shivering. I even dozed off fitfully a few times, but when I woke up properly, the nausea and cramps had passed, and I had a very voluminous bowel movement an hour after getting up. The medicine generally works for me, but you have to be prepared for very unpleasant side effects in getting there."

7 / 10
Was this helpful?YesNo
68 Report
  • Ran...
  • Taken for less than 1 month
  • August 28, 2020

For Constipation "I was having constipation problems for a week, and my doctor told me to get Senokot-S. I took 2 before bedtime around 11 pm, and then at 8 am, when I woke up, I had diarrhea. He told me it would be normal, but for the next 3 hours, I kept going back to the bathroom with diarrhea. I write this with severe cramping, nausea, and dizziness still. I’ve never taken a laxative in my life, so maybe my stomach can’t handle them. I feel so nauseous and weak, I’m never taking this again. I will say that it worked as the whole week I couldn’t go to the bathroom, and I felt full, but today it felt clear, although I’m not sure how worth it it was with these side effects."

9 / 10
Was this helpful?YesNo
44 Report

Are you taking this medicine?

Your review helps others make informed decisions.
Write a review
  • Anonymous
  • Taken for less than 1 month
  • February 11, 2021

For Constipation "I took this once a while ago, and it was great, no pain and relief. Because I had a good experience, the next time I was constipated, I was relieved to know I could take one... VERY different experience second time around. The extreme pain and cramping started about 16 hours after taking. I've had 4 children, and the cramps felt like labor pains. I had nausea and weakness. Almost 24 hours later, my stomach is bloated, I'm exhausted, and while I've gone to the bathroom, I have not had a good bowel movement yet. I will never take it again."

3 / 10
Was this helpful?YesNo
36 Report
  • Mad...
  • Taken for less than 1 month
  • September 4, 2017

For Constipation "Please do not take this medicine. Oh my goodness, I can't express enough what this put me through the past 2 days. I took it yesterday at 7 a.m. and was fine all day until after dinner at 6:30. Then I felt major gas-like pains that took me to my knees. The pain had me sounding like a dying moose. Then came the nausea and vomiting, it felt like the worst food poisoning ever. I was so hot and sweating like crazy, then literally freezing. The urgency to vomit and poop made me lose total control of my bladder. I was so weak from the torturing pain that I could hardly speak or move. I wanted to lay down in a fetal position, not moving to prevent the pain from coming back. During all this, I felt delirious, and my heart was pounding the whole time throughout the night. DON'T USE!"

1 / 10
Was this helpful?YesNo
58 Report
  • Ano...
  • Taken for less than 1 month
  • June 19, 2021

For Constipation "I used this one time in February following a bout of awful constipation that came out of nowhere. I took the recommended dosage and waited. However, overnight I started to feel nauseous, this feeling intensified as the night went on until I was actually being sick. Everything and anything I ate or drank (including water) came back up. I had to go to the hospital, and I was given morphine and cyclizine (anti-sickness) to help with the projectile vomiting and nausea. I had to stay in the hospital for a month after using this. Horrible experience, and it didn’t relieve my constipation at all. The minute I was discharged, I threw the whole packet in the bin! If I could give 0 stars, I would."

1 / 10
Was this helpful?YesNo
58 Report
  • tba...
  • April 11, 2021

For Constipation "I’m going to be as honest as possible here. Yesterday, I was extremely constipated, and I couldn’t go to the washroom for the past few days. My brother has IBS and recommended Senokot to me, he loves it. I took it at bedtime as recommended, took 2, and this morning I am suffering from extreme abdominal cramping. I’m nauseous, and I have chills. I didn’t even get it all out! I literally feel like I have the flu after taking this. I cannot even get through my day. It worked for my brother, he likes it, but I will never take this again. I’ll stick to Durolax or Metamucil for now."

2 / 10
Was this helpful?YesNo
25 Report
  • BAT...
  • Taken for less than 1 month
  • February 24, 2021

For Constipation "Horrifying. Like another said, I'm a mom as well, and the pain from this drug was worse than labor pain - couldn't agree more. I also had the nausea, sweating, then chills, and am suffering from PTSD from it. For 2 hours, I was screaming, the pain was so bad, the thought of riding in an ambulance with a morphine drip was what kept me alive. I'm considering a lawsuit. I did survive (obviously), but the next day, I had pains all over my stomach area like I did 1000 crunches, and it's mostly my stomach more than my intestines."

1 / 10
Was this helpful?YesNo
34 Report
  • Ano...
  • Taken for less than 1 month
  • April 24, 2020

For Constipation "I tried Senokot for the first time (2 tablets), without knowing what the possible side effects were. I started experiencing some serious stomach pains, nausea, and dizziness about 8 hours after taking it. I thought something was seriously wrong with me, but after finally going to the bathroom, the pain went away completely about an hour later. Although the side effects were really awful for me, it did work."

7 / 10
Was this helpful?YesNo
30 Report
  • Jor...
  • January 10, 2017

For Constipation "Constipated since Christmas Day 2016, now January 10th, 2017. Went a little every couple of days, nothing to write home about. Took one Senokot last night at 9 pm. 7:30 am next morning had some rumblings, a little cramp, then went as normal. Felt a little nausea and a bit of tummy ache for 30 minutes, then okay. Thank goodness."

10 / 10
Was this helpful?YesNo
30 Report
  • Rya...
  • Taken for 1 to 6 months
  • May 4, 2019

For Constipation "I have had 2 back surgeries and take pain meds that have constipated me over the years. I have been so constipated I've had partial blockages. I've tried everything from laxatives to enemas, citromag, and milk of magnesia, and everything in between. I can honestly say Senokot has by far worked the best for me. Yes, I have cramped and felt nauseous, but only when I have been extremely impacted and haven't had movement for 2 weeks or more. But right as you release, all the nauseous feeling and cramping is gone, and it doesn't come back, and that's only been for 10 mins until my stomach brewed enough for a movement. But now I've learned if I haven't released in a week to just take 2, and I don't have cramping or feel nauseous...it's a much more pleasant experience."

10 / 10
Was this helpful?YesNo
18 Report
  • Tru...
  • Taken for less than 1 month
  • October 19, 2021

For Constipation "Senokot is a disgusting medication. I don't even understand how it's even legal to sell this. Not only does it not get rid of constipation, it gives you more problems on top of it. Basically: gas, nausea, extreme dizziness (sometimes I feel disconnected from reality), extreme farting, diarrhea (yes, I have constipated diarrhea now, even I don't know how it works, basically, a bit of poo comes out like water around the solid bit of poo that stays inside and creates cramps, making the constipation even more unbearable). Never take this, I beg you."

1 / 10
Was this helpful?YesNo
12 Report
  • CZR...
  • October 16, 2019

For Constipation "I took 2 of these as recommended on the pack and got violent bursts of diarrhea, nausea, and vomiting. The most terrible experience of pain ever. Next time I took 1, and it didn’t work. So it seems 1 is too little and 2 is too much. Be careful!"

4 / 10
Was this helpful?YesNo
15 Report
  • Nee...
  • Taken for less than 1 month
  • February 14, 2019

For Constipation "The effects of this laxative are very unpredictable. Sometimes I can take 2 tabs and not go for 24 hours, or it works fine the next day. Currently, not having a great experience. I took 1 tab last night. Woke up this morning to awful cramps, bloating, and nausea. On the plus side, I've been to the loo 3 times in an hour and feel a lot less bunged up. Because of its unpredictability, I think I will try a high-fiber diet or lactulose. It does work, but when the side effects are bad, they're extremely unpleasant."

6 / 10
Was this helpful?YesNo
16 Report
  • Eli...
  • February 15, 2020

For Constipation "I took 1 tablet before bed for constipation as advised by a pharmacist (I’d had diarrhea on Saturday, then hadn’t been at all for 5 days - usually I’m every 2-3 days). The Senokot made me have a bowel movement the next day, around 14 hours after I had 1 tablet. Then I went again a couple of hours later. I started to feel quite sick at this point, really uneasy stomach, not much of an appetite. I still ate lunch and snacks as normal and didn’t feel like I needed to be sick - just crazy nausea. Then a few hours later, I went again, but it was more like diarrhea - then I felt VERY sick. I had to go to a pharmacy again for nausea relief (I was taking a flight to go on holiday, so I wasn’t going to wait for it to pass naturally!) - she gave me Pepto Bismol in liquid form instead of tablets - it worked like a dream and I’ve felt fine ever since. ADVICE: If you get the nausea (it was really bad) - definitely get Pepto Bismol to counteract it! So worth it."

6 / 10
Was this helpful?YesNo
11 Report
  • Car...
  • October 3, 2017

For Constipation "I have constipation regularly. Milk of magnesia gives me terrible cramps and makes me have nausea. Usually no BM. Miralax takes 3 days to work on me. Bisacodyl tablets react the same as milk of magnesia, except with horrible gas. Senna, I have normal cramping before a BM, it usually takes 8 hours to work. Very pleased."

10 / 10
Was this helpful?YesNo
12 Report
  • Ano...
  • Taken for less than 1 month
  • March 5, 2021

For Bowel Preparation "Worked very well. Took 2 of the tablets at about 10 pm. When I woke up, bowel movement started around 10 am. I had no chills, no side effects like a few of the other reviews, no nausea. Just completely cleared me out!"

10 / 10
Was this helpful?YesNo
6 Report
  • Ano...
  • Taken for 2 to 5 years
  • July 25, 2018

For Constipation "I suffer with IBS-C (irritable bowel syndrome with constipation) and rarely will have a bowel movement naturally. I take Senokot-S every 3 days, and it consistently produces a bowel movement, but it varies how my body reacts to the medication. At times, I have to take two or three doses, and other times, it causes extreme cramps, nausea, and diarrhea after one dose. Unfortunately, any stimulant laxatives such as this cause “lazy bowel” and dependency issues. So, although effective, I would recommend starting with something different, such as Lax-A-Day, before turning to this medication."

7 / 10
Was this helpful?YesNo
7 Report
  • Gra...
  • November 2, 2021

For Constipation "I've taken Senokot before, and it usually works. This one time, though, I had severe side effects. Bad stomach cramping, grumbling, shooting pains, going to the bathroom every 7-10 minutes, burping like crazy, weak and nauseous, chest pains (what I imagined having a heart attack feels like), and watery stools. I've never experienced anything this bad before. I've never had a baby before, but I imagined this to be worse than labor pains, minus the giving birth part. I had so many things planned for the day, but I spent it curled up in a ball. The second day was better, less frequent bathroom breaks, but when I ate something, it started again. I honestly considered calling 911. Hopefully, the third day is better. I'd give it a five for the side effects. I've only taken two this time, before, I used to take four, and nothing like this happened before. Take with caution, seriously."

5 / 10
Was this helpful?YesNo
4 Report
  • JJ1...
  • July 6, 2018

For Constipation "Taken Senokot a couple of times the past few weeks and found it to be effective with little to no side effects. Took only one yesterday at 8 a.m., it kicked in at 3 p.m. and ohhh boyyy. I visited the toilet 7 times in the space of a few hours, I had horrendous stomach cramps, nausea, and vomiting and couldn't hold anything down all day. It is now 5 p.m. the following day and I still have cramping, similar to food poisoning. Yes, it will clear out the pipes, but is it worth it to feel like this? Will stick to Ducolax in the future!"

4 / 10
Was this helpful?YesNo
5 Report
  • Cra...
  • Taken for less than 1 month
  • October 4, 2021

For Constipation "I would not recommend. I took one tablet after not having a bowel movement in around 4 days, and 6 hours later got the worst diarrhea I've ever had in my life, think liquid, explosive, and painful. It happened on and off for a few hours and was terrible because I had just had surgery and was not the most mobile. I also had unbearable abdominal cramping to the point of nausea. I was surprised by this reaction since it seemed like a safe bet of a stool softener, and my chemist recommended it highly."

1 / 10
Was this helpful?YesNo
3 Report
  • Con...
  • Taken for less than 1 month
  • November 16, 2017

For Constipation "OMG, awful tablets! Made me cramp at 2 am, which woke me up, and then the drama started. Drink water and try a more natural approach! No way I could take this daily! It's not a nice feeling! And tad nauseated."

1 / 10
Was this helpful?YesNo
8 Report
  • Mak...
  • Taken for less than 1 month
  • October 7, 2019

For Constipation "Okay, so I took 2 pills today at 10 a.m. Gave me diarrhea, nausea, and vomiting. Can't hold anything down."

3 / 10
Was this helpful?YesNo
7 Report

Are you taking this medicine?

Your review helps others make informed decisions.
Write a review
Reviews may be edited to correct grammar/spelling or remove inappropriate content. Reviews appearing to come from parties with a vested interest are not published. This information is not intended to endorse any medication and should not replace the expertise and judgment of healthcare professionals.