Flomoxef Sodium is a β-lactam inhibitor and member of the oxacephem family and exhibits antibiotic properties. It has been used for respiratory infections and bone diseases (ie osteoporosis). It was synthesized in 1982 by Shionogi & Co, Osaka, Japan in order to overcome disulfiram actions. Flomoxef Sodium has comparable biological activity to the free acid form, but the salt form usually has enhanced water solubility and stability.