Skip to main content

Metamucil and Upset Stomach: What Users Say

Upset stomach: mentioned by 4 users (5.3%)

Based on user experiences from 76 Metamucil 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 11.8%
gas 9.2%
pain 6.6%
cramps 5.3%
upset stomach 5.3%
constipation 3.9%
diarrhea 3.9%

Reviews for Metamucil

Showing 4 reviews tagged with "upset stomach". Clear filters to view all 76 reviews.
Commonly mentioned side effects
  • Jam...
  • Taken for less than 1 month
  • October 1, 2022

For Constipation "I used the powder twice and had pain in the bowel and an increase in reflux. I then tried the capsules but still got the same results: my stomach upset and bowel pain. I will not use this product again."

1 / 10
Was this helpful?YesNo
8 Report
  • Kee...
  • Taken for less than 1 month
  • July 13, 2022

For Dietary Fiber Supplementation "Metamucil for sure causes some stomach cramping and constipation at first. You have to drink a lot of water with it and learn how much you can take. For example, I started with 2 tablespoons a day but learned one time a day was enough for me. Pass stools pretty great now. For sure, think there should be more directions on the box than just “take 1-2 scoops.”"

8 / 10
Was this helpful?YesNo
6 Report
  • PJa...
  • February 7, 2020

For Constipation "I started taking Metamucil, and initially, it worked, but not without stomach cramps. The next two days, I have had stomach cramps, but no bowel movements. I am ceasing the use of this junk!"

1 / 10
Was this helpful?YesNo
36 Report

Frequently asked questions

  • Vin...
  • Taken for less than 1 month
  • November 8, 2021

For Irritable Bowel Syndrome "Stuff really works. I see a difference. I had bad stomach issues, take 3 times a day."

10 / 10
Was this helpful?YesNo
4 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.