PROBLEM TO BE SOLVED: To provide: a solid composition in which, in spite of containing collagen, the property of adhesion to mouth cavity and pharyngeal resultant from collagen is reduced a base for preparation of solid composition and a method for reducing adhesion property of solid composition.SOLUTION: Provided are: a solid composition and base for preparation of solid composition containing, (a) per 1 pt.mass of collagen, (b) 0.1 to 10 pts.mass of trehalose and/or a starch decomposed product having a DE of 15 or more and a method for reducing adhesion property of solid composition in which, per 1 pt.mass of collagen, 0.1 to 10 pts.mass of trehalose and/or a starch decomposed product having a DE of 15 or more is contained.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】コラーゲンを含有するにもかかわらず、コラーゲンに起因する口腔及び咽頭への付着性が低減された固体状組成物、固体状組成物調製用ベース、及び固体状組成物の付着性低減方法の提供。【解決手段】(a)コラーゲン1質量部に対し、(b)トレハロース及び/又はDE15以上のデンプン分解物を0.1~10質量部含有する固体状組成物及び固体状組成物調製用ベース。並びに、コラーゲン1質量部に対して、トレハロース及び/又はDE15以上のデンプン分解物を0.1~10質量部含有させる、固体状組成物の付着性低減方法。【選択図】なし