A SUGAR-COATED AGENT THAT INCLUDES A CORE, A FILM LAYER THAT MAINLY INCLUDES A FILM COMPONENT, THE OUTER SURFCACE OF THE CORE BEING COATED WITH THE FILM LAYER, A SUGAR COATING LAYER THAT MAINLY INCLUDES A SUGAR COATING COMPONENT, THE OUTSIDE OF THE FILMB LAYER BEING COATED WITH THE SUGAR COATING LAYER, AND A MIDDLE LAYER THAT INCLUDES A -FILM COMPONENT AND A SUGAR COATING COMPONENT. AND IS PROVIDED BETWEEN THE FILM LAYER AND THE SUGAR COATING LAYER, WHEREIN WITNIN THE MIDDLE LAYER, THE CONCENTRATION OF THE SUCAR COATING COMPONENT AT THE INTERFACE BETWEEN THE MIDDLE LAYER AND THE SUGAR COATING LAYER IS HIGHER THAN THE CONCENTRATION OF THE SUGAR COATING COMPONENT AT THE INTERFACE BETWEEN THE MIDDLE LAYER AND THE FILM LAYER.