PROBLEM TO BE SOLVED: To provide a solid pharmaceutical composition containing Polygala tenuifolia Wilfenow root extract that inhibits the discoloration of Polygala tenuifolia Wilfenow root extract with time during preservation and has excellent storage stability.SOLUTION: A solid pharmaceutical composition comprises (A) extract of Polygala tenuifolia Wilfenow roots, and (B) at least one silicate compound selected from the group consisting of hydrous silicon dioxide and light anhydrous silicic acid.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】オンジエキスの保存における経時的な変色を抑制し、保存安定性に優れたオンジエキス含有固形医薬組成物を提供する。【解決手段】(A)オンジエキス、及び、(B)含水ニ酸化ケイ素及び軽質無水ケイ酸からなる群から選択される少なくとも一種のケイ酸化合物を含有する固形医薬組成物。【選択図】なし