Ciprofloxacin is used to treat a wide variety of infections, including infections of bones and joints, endocarditis, bacterial gastroenteritis, malignant otitis externa, bubonic plague, respiratory tract infections, cellulitis, urinary tract infections, prostatitis, anthrax, and chancroid. [4] Taking ciprofloxacin may affect your brain or nervous system and cause serious side effects. This can occur after the first dose of ciprofloxacin. Cipro is a fluoroquinolone (flor-o-KWIN-o-lone) antibiotic that fights bacteria in the body. Cipro is used to treat different types of bacterial infections. Cipro is also used to treat people who have been exposed to anthrax or certain types of plague. Ciprofloxacin is used to treat bacterial infections in many different parts of the body. Ciprofloxacin oral liquid and tablets are also used to treat anthrax infection after inhalational exposure. This medicine is also used to treat and prevent plague (including pneumonic and septicemic plague). Find out how ciprofloxacin treats serious infections and how to take or use it. NHS medicines information on ciprofloxacin – what it's used for, side effects, dosage and who can take it. Learn about Ciproxin uses, dosage, side effects, food interactions, and more. Get all the details about Ciproxin from MedicinesFAQ. Ciprofloxacin (Cipro) treats UTIs, pneumonia & more — but carries a serious FDA Black Box Warning. Learn safe dosage, side effects & drug interactions. What is ciprofloxacin used for? Ciprofloxacin is an antibiotic that is commonly used for the following infections caused by certain bacteria. Ciprofloxacin may not be appropriate for some of. Take your doses at regularly spaced intervals (ideally every 12 hours), and drink several glasses of water each day. It is important to complete the full course of treatment. This is to prevent the infection from coming back. Ciprofloxacin is a fluoroquinolone (flor-o-KWIN-o-lone) antibiotic, it is used to treat different types of bacterial infections. It is also used to treat people who have been exposed to anthrax or certain types of plague. Ciprofloxacin extended-release is only approved for use in adults.