Medication side effect

Can Acetic Acid cause diarrhea?

Yes — diarrhea has been reported as a side effect of Acetic Acid in FDA adverse-event reports (FAERS) and product labeling. It is among the more frequently reported events for this medication. These are voluntary reports, so they show what's been reported, not how often it happens.

Reported adverse reactions

ADVERSE REACTIONS Systemic acidosis, pain and hematuria have been reported in patients receiving urinary bladder irrigation with 0.25% Acetic Acid Irrigation, USP. Should adverse reactions occur, discontinue the irrigation and reevaluate the clinical status of the patient.

Warnings

WARNINGS Not for injection. Use of this solution in patients with mucosal lesions of the urinary bladder may be harmful due to irritation of the lesion. Absorption via open lesions of the bladder mucosa may result in systemic acidosis. The contents of an opened container should be used promptly to minimize the possibility of bacterial growth or pyrogen formation. Discard the unused portion of irrigating solution since no antimicrobial agent has been added.

Other reported side effects of Acetic Acid

Frequently asked questions

Is diarrhea a side effect of Acetic Acid?

Yes — diarrhea has been reported as a side effect of Acetic Acid in FDA adverse-event reports (FAERS) and/or its labeling. These are voluntary reports, so they show what's been reported, not how often it happens.

How common is diarrhea with Acetic Acid?

diarrhea is among the more frequently reported events for Acetic Acid in FAERS. Reporting volume isn't a true incidence rate — check the prescribing information for documented frequencies.

What should I do if I have diarrhea while taking Acetic Acid?

Don't stop a prescribed medication on your own. Tell your prescriber or pharmacist — they can tell you whether it's expected, whether it needs attention, and what to do next.

Informational only, drawn from FDA adverse-event reporting (FAERS) and labeling — not medical advice, and not proof a medication caused an effect. Talk to your clinician or pharmacist about any side effect.

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