Som et fluorquinolon- antibiotikum udøver Ciprofloxacin sin baktericide virkning ved at hæmme både type II topo- isomerase (DNA- gyrase) og top- isomerase IV, som er nødvendig for bakteriel DNA - replikation, transskription, genopretning og rekombination.
235 As a fluoroquinolone antibacterial agent, the bactericidal action of ciprofloxacin results from the inhibition of both type II topoisomerase (DNA-gyrase) and topoisomerase IV, required for bacterial DNA replication, transcription, repair and recombination.