Besifloxacin Hydrochloride is a fourth generation fluoroquinolone antibiotic. Besifloxacin Hydrochloride is a DNA gyrase and topoisomerase IV inhibitor. Besifloxacin Hydrochloride has broad-spectrum antibacterial activity, it is effective against Gram-negative and Gram-positive aerobic and anaerobic strains and reduces the incidence of drug resistance. Besifloxacin Hydrochloride has anti-inflammatory activity. Besifloxacin Hydrochloride can be used in bacterial conjunctivitis research[1][2][3][4].