A preparation replete with crystals of a sodium salt of 6-fluoro-3-hydroxy-2-pyrazine carboxamide has superior solubility, and is useful as a preparation for injection.Kristal natrijumove soli 6-fluor-3-hidroksi-2-pirazinkarboksamida ili njegovog hidrata.Prijava sadrži još 4 patentna zahteva.