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Drug interactions

Acetazolamide + Methenamine

Severity: Major

Acetazolamide and Methenamine: major interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Acetazolamide alkalinizes the urine, which prevents methenamine from being converted to formaldehyde.

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