PROBLEM TO BE SOLVED: To provide a base for solid dispersion with an improved elution of medicine and reduced coloring.SOLUTION: A base for solid dispersion contains a polyvinyl alcohol resin with the content of carboxylic acid metal salt being 0.8 wt.% or less.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】薬物の溶出率に優れ、着色が小さい固体分散体用基剤を提供すること。【解決手段】カルボン酸金属塩の含有量が0.8重量%以下のポリビニルアルコール系樹脂を含有してなることを特徴とする固体分散体用基剤。【選択図】なし