Ciprofloxacin is an antibiotic that is used to treat bacterial infections. It stops the multiplication of bacteria by inhibiting the reproduction and repair of their genetic material (DNA). The FDA approved ciprofloxacin in October 1987. Ciprofloxacin belongs to the fluoroquinolone class of antibiotics. Ciprofloxacin is used for the treatment of disseminated gonococcal infection, but is not licensed for this indication. 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, sold under the brand name Cipro among others, is a fluoroquinolone antibiotic used to treat a number of bacterial infections. [4]. 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. 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. Ciprofloxacin is used to treat a variety of bacterial infections. Ciprofloxacin belongs to a class of drugs called quinolone antibiotics. It works by stopping the growth of bacteria. This antibiotic treats only bacterial infections. It will not work for virus infections (such as common cold, flu). Take ciprofloxacin once or twice a day. When used to treat gonorrhea, take ciprofloxacin as a single dose. Take ciprofloxacin at around the same time (s) every day. The length of your treatment depends on the type of infection you have. 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. 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).