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Fosfomycin and Stomach Pain: What Users Say

Brand names: Monurol

Stomach pain: mentioned by 5 users (6.5%)

Based on user experiences from 77 Fosfomycin 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.

diarrhea 23.4%
nausea 15.6%
upset stomach 10.4%
back pain 9.1%
bloating 6.5%
stomach pain 6.5%
abdominal pain 5.2%
dizziness 3.9%
pain 3.9%
tiredness 3.9%

Reviews for Fosfomycin

Showing 5 reviews tagged with "stomach pain". Clear filters to view all 77 reviews.
Commonly mentioned side effects
  • dia...
  • Taken for less than 1 month
  • March 11, 2025

For Urinary Tract Infection "I have taken this antibiotic several times, always one dose at night without going to the toilet the whole night to 'let it work' in the bladder for a longer time. It does its job immediately. However, the amount of stomach and gut pain afterwards, followed by diarrhea, is immense. Crazy strong antibiotic. I need at least 2 weeks to recover a little bit from the pain and issues this causes. Imagine the damage it makes long-term. Be cautious, only take if last option."

7 / 10
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2 Report
  • dia...
  • Taken for less than 1 month
  • March 11, 2025

For Urinary Tract Infection "I have taken this antibiotic several times, always one dose at night without going to the toilet the whole night to 'let it work' in the bladder for a longer time. It does its job immediately. However, the amount of stomach and gut pain afterwards, followed by diarrhea, is immense. Crazy strong antibiotic. I need at least 2 weeks to recover a little bit from the pain and issues this causes. Imagine the damage it makes long-term. Be cautious, only take if last option."

7 / 10
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2 Report
  • K J...
  • Taken for less than 1 month
  • July 24, 2022

For Bladder Infection "I was so excited to get a one-dose instead of a 7-day antibiotic. I took it on Friday around 11:30 a.m., and within an hour, I had these terrible stomach pains that lasted around 6 hours. Then they were on and off and went away by the time I went to bed. Then I woke up in the middle of the night with back pain, on the right side just above my butt. This dull, aching feeling I’ve never had before. Still dealing with it on Sunday. Also had some diarrhea that lasted all Saturday. I’ve felt miserable on this. Hoping this UTI hasn’t moved to the kidneys now. Burning urine and UTI pain seem to have passed, but with the side effects… this is NOT worth it."

2 / 10
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3 Report

Frequently asked questions

  • Ele...
  • Taken for 1 to 2 years
  • May 6, 2021

Fosfomycin for Bladder Infection "This is about the fourth time I have used Monurol. Started fine and couldn’t believe how quickly it worked. I now find whenever I take Monurol, I suffer from stomach pain and bloating about 2 weeks after. I am not only having that problem, but now pain in my right kidney and waking up nightly with it. Don’t know what I will do next, as I have found antibiotics in the past have made me ill."

2 / 10
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5 Report
  • see...
  • Taken for less than 1 month
  • October 27, 2022

Fosfomycin for Bladder Infection "Awful, did not help, still suffering side effects, nausea, back and stomach pain, loose bowel. It has set me right back. I am not over side effects, and it has been 8 days."

1 / 10
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3 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.