The invention relates to a fosfomycin preparation that comprises a) a calcium salt of fosfomycin and b) at least one sugar alcohol having a melting point above 70° C., whereby the weight ratio of sugar alcohol to calcium salt of fosfomycin is at least 0.8. Moreover, the invention proposes a method for producing the fosfomycin preparation and a polymethylmethacrylate bone cement powder that contains the fosfomycin preparation.
