Neomycin sulfate is an aminoglycoside antibiotic. This product has a good antibacterial effect on Staphylococcus (methicillin-sensitive strain), Corynebacterium, Escherichia coli, Klebsiella, Proteus and other Enterobacteriaceae bacteria, and has good antibacterial effects on various groups of Streptococcus and pneumonia. The activity of cocci and Enterococcus is poor.his product is big ring lactone class antibiotic, antimicrobial spectrum and penicillin approximate, to gram positive bacteria, be like staphylococcus, pyogenic streptococcus, green streptococcus, pneumoniae streptococcus, faecal streptococcus, hemolytic streptococcus, clostridium bacillus, diphtheria bacillus, anthracis bacillus and so on have strong inhibitory effect.