Ciprofloxacin is a broad-spectrum antibiotic belonging to the fluoroquinolone class. It is used to treat a variety of bacterial infections, including those of the urinary tract, respiratory system, skin, and gastrointestinal tract. Ciprofloxacin works by inhibiting bacterial DNA gyrase, preventing bacterial replication and growth. It is available in tablet, oral suspension, and injectable forms, and is typically prescribed for short-term use under medical supervision.