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Psyllium and Diarrhea: What Users Say

Brand names: Metamucil, Reguloid, Konsyl, Metamucil Orange Smooth Texture, Fiber Therapy, Hydrocil, Metamucil Orange Smooth Texture Sugar Free, Fiberall, Konsyl-Orange Konsyl-D Natural Fiber Therapy Metamucil Unflavored Coarse Milled Original Texture Metamucil Orange Coarse Milled Original Texture Metamucil Unflavored Smooth Texture Sugar Free Metamucil Berry Burst Smooth Texture Sugar Free Metamucil Smooth Texture …show all brand names

Diarrhea: mentioned by 4 users (4.1%)

Based on user experiences from 97 Psyllium 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.

bloating 9.3%
gas 7.2%
pain 6.2%
cramps 5.2%
diarrhea 4.1%
upset stomach 4.1%
constipation 3.1%

Reviews for Psyllium

Showing 4 reviews tagged with "diarrhea". Clear filters to view all 97 reviews.
Commonly mentioned side effects
  • NoM...
  • Taken for 1 to 6 months
  • March 20, 2016

Psyllium for Irritable Bowel Syndrome "I was told to take this 40 years ago, but didn't like the taste/texture. My pain and diarrhea got so bad I started taking 1 scant tablespoon a day and I have no more pain and only rare diarrhea. I wish I had started using it years ago."

10 / 10
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109 Report
  • poo...
  • Taken for 1 to 6 months
  • November 7, 2022

Psyllium for Irritable Bowel Syndrome "I had the worst diarrhea for over two years and complete bowel incontinence for twenty-five years. I was prescribed cholestyramine but could not get myself to take this plastic resin powder. I did some research and saw a small similarity with Metamucil, so I tried it. That was more than a month ago. It changed my life, no more cramps, bloating, gas, diarrhea, no more complete poop accidents in public. I wake up, move my bowel perfectly normal, and I am good to go all day. I am beyond grateful. I take 2 teaspoons of powder a day every day. Please give it a try."

10 / 10
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29 Report
  • Mus...
  • Taken for 1 to 6 months
  • September 9, 2020

Psyllium for Irritable Bowel Syndrome "Have been reading the reviews for Metamucil with interest. My own experience is vastly different from what I am reading. It is actually causing worse diarrhea for me. I am going to try it in pill form instead of the powder to see if it makes a difference."

2 / 10
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45 Report

Frequently asked questions

  • Pet...
  • Taken for 5 to 10 years
  • May 27, 2022

For Dietary Fiber Supplementation "I have had microscopic colitis for 9 years. It was supposed to go away after 2 to 3 years, but did not, obviously. Cortisone works, but cannot be used for very long, plus it raised my A1C to 6.9. Psyllium powder (sugar-free) is the only thing that works long term. One teaspoonful morning and night well after meals does the trick. Skip a dose and diarrhea returns immediately. Not affected by what I eat. Lipids are low, A1C remaining 5.5 - 5.9. Soluble fiber (Benefiber) does not work."

10 / 10
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0 Report

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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.