Carbenicillin
Carbenicillin is an extended-spectrum penicillin antibiotic used to treat serious bacterial infections, particularly those caused by susceptible gram-negative organisms including Pseudomonas aeruginosa. It works by inhibiting bacterial cell wall synthesis, making it effective for complicated urinary tract infections, respiratory tract infections, and certain types of septicemia when caused by susceptible organisms.
Carbenicillin is a penicillin-type antibiotic used for serious infections caused by susceptible gram-negative bacteria, particularly Pseudomonas.
Key facts at a glance
- ATC
- J01CA03
- RxNorm
- 2015
- Generic
- Carbenicillin
- Class
- atc-j01
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- oral
- Forms
- tablet
- 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 of complicated urinary tract infections, lower respiratory tract infections, bone and joint infections, and septicemia caused by susceptible gram-negative bacteria including Pseudomonas aeruginosa and certain Proteus species.
As a beta-lactam antibiotic, carbenicillin inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), disrupting peptidoglycan cross-linking and leading to bacterial cell death.
Contains significant sodium content which may concern patients with heart failure or hypertension. Requires monitoring for bleeding complications and electrolyte abnormalities. Dose adjustment necessary in patients with renal impairment. Cross-reactivity possible in patients with penicillin allergy.
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 25, 2026. · Read our editorial policy