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martha_nichols2026-04-17

I was recently prescribed Methenamine Mandelate 500mg Tabs for a persistent UTI. The doctor explained that it works by making my urine acidic to kill bacteria, but I'm curious if anyone else has tried this and how it went for them? The side effects list is a bit concerning, especially the urgent ones. Has anyone had any issues with allergic reactions or bladder pain? I'm also wondering how tightly I need to stick to an acidic diet while on this medication. Any tips or personal experiences would be greatly appreciated!

1 min read
last active 4/17/2026
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Comments (4)

W
wayne_silva4/13/2026

Methenamine Mandelate saved me from a lifetime of UTI misery. I love my doctor for prescribing this. If it tastes bitter just don't take it with juice. Take plenty of water and you'll fine.

G
grace_wilson4/13/2026

I've been on it for a month, no issues. Just remember to report any side effects to the FDA and your doc! Safety first, guys.

W
william_owens4/13/2026

I take this stuff like clockwork. I wish it had less of a chemical taste but it beats the heck out of a UTI. I've noticed I get results quickly too.

J
janet_gardner4/13/2026

Go easy on the cranberries if you do that route. I get diarrhea from all the sugar. I never want to repeat that day. I am not sure how doctors recommend that.