Gatifloxacin + Ketorolac is a combination of two medicines: Gatifloxacin + Ketorolac1 and Gatifloxacin + Ketorolac2 which treat infections. Gatifloxacin + Ketorolac1 is an antibiotic. It kills bacteria by preventing the bacterial cells from dividing and repairing. Gatifloxacin + Ketorolac2 is a non-steroidal anti-inflammatory drug (NSAID). It works by blocking the release of certain chemical messengers that cause pain and inflammation (redness and swelling).