The present invention, pertains in general to the field of stabilization of FSH formulations, in particular liquid FSH formulations. The stabilization is achieved by the addition of salts comprising pharmaceutically acceptable alkali metal cations, in preferred embodiments by the addition of pharmaceutically acceptable salts, i.e. sodium salts or potassium salts.La presente invención se refiere al uso de sales que comprende cationes de metales alcalinos farmacéuticamente aceptables para limitar la tendencia de la FSH a disociarse en una formulación líquida de FSH, en donde la sal es Na2SO4 o una combinación de NaCl y Na2SO4.
