PROBLEM TO BE SOLVED: To provide a dialysis agent capable of suppressing consolidation and aggregation of a medical agent and acquired at a low cost in the dialysis agent which contains at least magnesium chloride as an electrolyte component, and in which each of components of the dialysis agent is injected in a container as a sole solid component.SOLUTION: The dialysis agent comprises: an electrolyte component containing at least magnesium chloride and a pH-adjuster, where a ratio of the water removal amount of magnesium chloride to the total water content of the dialysis agent is less than 118% and 7% or more, the water content of the magnesium chloride falls within the range from 43 to 51%, and each of the components of the dialysis agent is injected in a container as a sole solid component.COPYRIGHT: (C)2014,JPO&INPIT【課題】電解質成分として少なくとも塩化マグネシウムを含み、各含有成分が単一の固体成分として容器に充填された透析用剤において、薬剤の固結、凝集が抑制され、低コストで得られる透析用剤を提供する。【解決手段】少なくとも塩化マグネシウムを含む電解質成分と、pH調整剤とを含有し、塩化マグネシウムの除水量と透析用剤全体の含水量との比率が、118%未満7%以上であり、塩化マグネシウムの水分含有率が43%~51%の範囲であり、各含有成分が単一の固体成分として容器に充填されている透析用剤である。【選択図】なし