This product belongs to the quinolone antibacterial drug. Its main mechanism of action is to inhibit the activity of DNA gyrase and DNA topoisomerase IV of Staphylococcus aureus, hinder DNA synthesis and cause bacterial death; it has a weak inhibitory effect on human topoisomerase II. This product has the characteristics of a broad antibacterial spectrum and strong antibacterial effect. It has good antibacterial activity against G+ bacteria such as Staphylococcus, Streptococcus, Enterococcus, and against G- bacteria such as Escherichia coli, Proteus mirabilis, Klebsiella, Enterobacter cloacae, Citrobacter rodentium, Acinetobacter calcoaceticus, Haemophilus influenzae, Moraxella catarrhalis, Pseudomonas aeruginosa, etc. This product also has good antibacterial activity against some anaerobic bacteria such as Clostridium perfringens, Fusobacterium nucleatum, Propionibacterium acnes, Porphyromonas, some Peptostreptococci, Bacteroides fragilis and Prevotella.