PROBLEM TO BE SOLVED: To provide a porous carbon particle to be used in the treatment and prevention of liver disease.SOLUTION: There is provided a porous carbon particle in which at least 20% of the total pore volume consists of a pore having the average diameter of 2 to 200nm, and/or the particle contains micropores having the diameter of 2 nm or less and small macropores having the diameter of 50 nm to 500 nm, but does not substantially contain mesopores having the diameter which exceeds 2 nm and is less than 50 nm, and does not substantially contain large macropores having the diameter which exceeds 500 nm.SELECTED DRAWING: None【課題】肝疾患の治療又は予防において使用するための多孔性炭素粒子の提供。【解決手段】全細孔容積の少なくとも20%は、2~200nmの平均直径を有する細孔から構成され、及び/又は該粒子は、直径が2nm以下のマイクロポア及び直径が50nm~500nmの小さなマクロポアを含むが、直径が2nmを超え且つ50nm未満のメソポアを実質上含まず、及び直径が500nmを超える大きなマクロポアを実質上含まない多孔性炭素粒子。【選択図】なし