Fosfomycin is a broad-spectrum bactericidall for human and animals purposes, which inhibits the growth of E. coli, S. aureus, Serratia, Klebsiella, Citrobacter, Enterococcus, and Enterobacter etc..

Fosfomycin tromethamine is a phosphonic acidepoxide derivative, which expands the therapeutic utility of tromethamine salt because its water solubility increased enough to allow oral administration.