Skip to main content

Methenamine and Diarrhea: What Users Say

Brand names: Hiprex

Diarrhea: mentioned by 3 users (2.9%)

Based on user experiences from 105 Methenamine 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.

bad taste 5.7%
burning 3.8%
difficulty urinating 3.8%
bladder issues 2.9%
depression 2.9%
diarrhea 2.9%
headaches 2.9%

Reviews for Methenamine

Showing 3 reviews tagged with "diarrhea". Clear filters to view all 105 reviews.
Commonly mentioned side effects
  • CCa...
  • Taken for 1 to 2 years
  • December 10, 2019

For Urinary Tract Infection "Had my first UTI when I had sex for the first time. I would get UTIs every time I had sex to the point I stopped having sex because I didn't want to get UTI. Different GPs and specialists tried many antibiotic methods but none were working as I kept on getting UTIs every few weeks. A few years later, a GP recommended me to take Hiprex once a day for UTI prevention, but I was having diarrhea and mild rashes, so he told me to stop taking it. A few years later, my specialist told me that I have a benign lesion on my bladder lining (scarring because of all the recurring infections). Devastated, I gave Hiprex another shot and somehow I didn't get any more rashes but just stomach discomfort and mild diarrhea. Now I have been on Hiprex on and off for over a year and I haven't had a single UTI since. I only take it once a day before or immediately after I had sex and continue to take it for a couple of days. So I have days off Hiprex and this method works for me. It definitely changed my life after suffering for five years."

10 / 10
Was this helpful?YesNo
144 Report
  • Sab...
  • Taken for 1 to 6 months
  • June 13, 2023

For Urinary Tract Infection "I have suffered from UTIs for years. I have been to so many urologists, I’m literally exhausted. Antibiotic after antibiotic, they would help me for a little while, about two to three weeks, then the infection would return, and always a different strain. This year, 2023, I started on Hiprex twice daily and vitamin C once daily. Well, we are in June, and thank you to my physician assistant who prescribes it for me. All the urologists I went to, at least six, never mentioned this medication to me. It honestly works. Thank goodness I had no major side effects, apart from mild stomach problems and occasional diarrhea. I can deal with stomach discomfort. No UTI, YEAH!"

10 / 10
Was this helpful?YesNo
12 Report
  • Pri...
  • Taken for less than 1 month
  • November 5, 2019

For Urinary Tract Infection "Hiprex with Vit C 500 mg twice a day for recurrent UTI prevention. I was on Macrodantin 50 mg for 4 months and got a UTI recently. My Dr. at Northwestern Univ. wanted me to try Hiprex. As soon as I took the first pill, I felt the burning through my stomach and bladder. It gave me diarrhea, painful urination, nausea, back pain, vaginal burning, and my bladder started leaking. Tried with Pyridium for 2 days, a little better, but once the Pyridium stops working, this is killing me. I did 6 days, and I'm done. Sucks for me!"

2 / 10
Was this helpful?YesNo
31 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.