Phosphomycin, also known as Fosfomycin, is an antibiotic produced byStreptomyces fradiae. It is used to treat uncomplicated urinary tract infections and to reduce nephrotoxicity and ototoxicity of platinum-containing anti-tumor agents. It is used to study resistance proteins inBacillus subtilisandMycobacterium tuberculosis. It is a potential treatment for bronchiectasis.