The field of the present invention is that of 
fosfomycin formulations for parenteral administration, in particular for intravenous administration. Formulations of the prior art provide 
fosfomycin as a 
powder to be diluted directly prior to the administration. The aim of the invention is to provide a 
fosfomycin formulation for parenteral administration which is easier to produce and administer or which lowers the risk of puncture injuries for healthcare professionals and the health risks for the patients (for example due to 
contamination or incorrect dosages) by preventing additional 
processing steps. During the course of the invention, it was surprisingly shown that fosfomycin is much more stable in an 
aqueous solution than what is commonly assumed. The invention therefore provides a closed container which contains an 
aqueous solution for parenteral administration, wherein at least one pharmaceutically acceptable salt of fosfomycin, in particular fosfomycin disodium salt, and a pharmaceutically acceptable acid, in particular 
succinic acid, are dissolved in the solution. Preferred containers are breakable ampoules made of plastic or glass, puncturable vials, infusion bags, or syringes ready for injection.