Benzalkonium / Benzethonium
Benzalkonium and Benzethonium are cationic surfactant compounds with broad-spectrum antimicrobial activity, commonly used as antiseptic and disinfectant agents. They are frequently found in topical antiseptic solutions, eyewash products, and as preservatives in various pharmaceutical formulations. These agents are primarily utilized for surface cleaning and disinfection rather than systemic treatment.
Topical antiseptic and preservative agents used for surface disinfection and antimicrobial protection in various pharmaceutical and medical applications.
Key facts at a glance
- RxNorm
- 1038763
- Generic
- Benzalkonium / Benzethonium
- Class
- multi-ingredient
- 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 skin antisepsis before procedures, wound cleansing, surface disinfection, and as a preservative in ophthalmic solutions and other pharmaceutical formulations. Also found in some topical treatments for minor skin infections and in antiseptic cleansing products.
These quaternary ammonium compounds work by disrupting the cell membrane integrity of microorganisms, causing leakage of cellular contents. They have bactericidal activity against gram-positive bacteria and good activity against some gram-negative organisms, fungi, and certain viruses.
For topical/external use only; not for internal use or deep wound irrigation. May cause skin irritation or sensitization in some individuals. Should not be used on broken skin for extended periods. Some microorganisms may develop reduced susceptibility with repeated exposure. Avoid contact with eyes and mucous membranes.
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.
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 28, 2026. · Read our editorial policy