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Benzalkonium Bromide

Published: July 26, 2026Updated: August 27, 2026

Benzalkonium Bromide is a quaternary ammonium compound with broad-spectrum antiseptic and antimicrobial properties. It works as a cationic surfactant, disrupting the cell membranes of bacteria, fungi, and certain viruses. This medication is commonly used as a topical antiseptic for skin disinfection and wound cleaning.

Quick summary

Benzalkonium Bromide is a topical antiseptic agent used for skin disinfection and wound care.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 27, 2026Editorial policy

Key facts at a glance

RxNorm
1425981
Generic
Benzalkonium Bromide
Class
pin-variant
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.

Used for topical antiseptic skin disinfection, wound cleaning, pre-operative skin preparation, and as a preservative in some ophthalmic solutions. May also be found in antiseptic soaps, wipes, and disinfectants for medical use.

Functions as a cationic surfactant that disrupts microbial cell membranes, leading to cell death. Exhibits antimicrobial activity against a wide range of gram-positive and gram-negative bacteria, as well as some fungi and enveloped viruses.

For external use only. Avoid contact with eyes and sensitive tissues. Should not be used on large wound areas or mucous membranes. May cause skin irritation in some individuals. Effectiveness may be reduced in the presence of organic matter such as blood or serum.

Official drug label

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

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 27, 2026. · Read our editorial policy