Norfloxacin Capsule (Norfloxacin Capsule) is suitable for urinary tract infection, gonorrhea, prostatitis, intestinal infection, typhoid fever and other salmonella infections caused by sensitive bacteria. It is a fluoroquinolone antibacterial agent, which has broad-spectrum antibacterial activity, especially high antibacterial activity against aerobic gram-negative bacilli, and good antibacterial effect in vitro against most bacteria in Enterobacteriaceae, including Enterobacter such as Citrobacter, Enterobacter cloacae, Enterobacter aerogenes, Escherichia coli, Klebsiella, Proteus, Salmonella, Shigella, Vibrio and Yersinia. Norfloxacin also has antibacterial activity against multidrug-resistant bacteria in vitro. Penicillin-resistant Neisseria gonorrhoeae, Haemophilus influenzae and Moraxella catarrhalis also have good antibacterial effects. Norfloxacin is a bactericide, which inhibits DNA synthesis and replication by acting on subunit A of bacterial DNA helicase, leading to bacterial death. Generally speaking, it has a good effect on diarrhea (caused by bacterial infection).