Levofloxacin
Levaquin (levofloxacin) is a fluoroquinolone antibiotic used to treat a wide range of bacterial infections, including respiratory tract infections, urinary tract infections, skin infections, and sinusitis. It works by killing bacteria or preventing their growth. Due to serious safety concerns including tendinitis, tendon rupture, and potential irreversible side effects, it is typically reserved for situations when other treatment options are not suitable.
Levaquin is a fluoroquinolone antibiotic prescribed for various bacterial infections, but is reserved for when other antibiotics are not appropriate due to significant safety risks.
Key facts at a glance
- RxNorm
- 217992
- Generic
- Levaquin
- 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.
Treats respiratory infections (pneumonia, bronchitis), urinary tract infections, sinus infections, skin infections, prostate infections, and anthrax exposure. Not effective against viral infections like colds or flu.
Belongs to the fluoroquinolone class of antibiotics. It works by inhibiting two key bacterial enzymes (DNA gyrase and topoisomerase IV) that are essential for bacterial DNA replication, effectively killing susceptible bacteria.
May cause tendinitis and tendon rupture, particularly in patients over 60, those taking corticosteroids, or kidney/heart/lung transplant recipients. Can worsen muscle weakness in patients with myasthenia gravis. Other serious effects include nerve damage, low blood sugar, and mental health effects. Should be used only when benefits outweigh risks and typically reserved for patients without other treatment options.
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 July 26, 2026. · Read our editorial policy