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Methenamine Hippurate

Published: July 26, 2026Updated: August 26, 2026

Uroqid-Acid No.2 is a brand-name urinary antiseptic medication used to treat and prevent urinary tract infections. It works by acidifying the urine and providing antimicrobial effects in the urinary system. This medication is typically prescribed for patients experiencing recurrent UTIs or those needing long-term urinary tract management.

Quick summary

Uroqid-Acid No.2 is a urinary antiseptic used to treat and prevent urinary tract infections by acidifying urine and providing antibacterial effects.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 26, 2026Editorial policy

Key facts at a glance

RxNorm
220703
Generic
Uroqid-Acid No.2
Class
brand-name
Brands
—
Availability
rx
Lactation
unknown
Routes
—
Forms
—
Regions
US, EU, CN, JP
Monitoring
—

This page is for informational purposes only.

Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.

Treatment and prevention of urinary tract infections, including cystitis and other bacterial infections of the urinary system. May be used for patients with recurrent UTIs or those requiring long-term urinary prophylaxis.

Contains methenamine (hexamethylenetetramine), which converts to formaldehyde in acidic urine to provide antibacterial effects. The acidifying component helps maintain an acidic urinary pH, creating an unfavorable environment for certain bacteria and enhancing the antiseptic properties.

Requires acidic urine (pH below 6) for optimal effectiveness; dietary modifications may be needed. Not suitable for patients with severe renal impairment. May interact with certain medications and supplements. Should be used under medical supervision with regular monitoring of urine pH and kidney function.

Official drug label

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Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 26, 2026. · Read our editorial policy