Antibiotics Home > What Is Ciprofloxacin?

If you have a bacterial infection, your healthcare provider may prescribe ciprofloxacin. But what is this drug and how does it work?
Ciprofloxacin belongs to a group of antibiotics called fluoroquinolones, or "quinolones" for short. It is available in several strengths and forms, including tablets, extended-release tablets, an oral liquid suspension, an intravenous (IV) solution, eye drops, and ear drops.
As an antibiotic, ciprofloxacin works by killing certain bacteria that cause infections. It does this by interfering with two bacterial enzymes that are needed for bacteria to multiply.
Some of the bacterial infections ciprofloxacin is approved to treat include:
(Click Ciprofloxacin for a complete overview of what this medicine is prescribed for, including a detailed description of how this antibiotic works, potential side effects, and dosing tips for when and how to safely and effectively take it.)
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
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