The present invention addresses the problem of providing an intraoral retentive disintegrating solid preparation having excellent disintegration and cohesion, a method for producing the same, and a powder composition or the like used in said production method. The present invention provides an intraoral retentive disintegrating solid preparation comprising at least one type of disintegrant and at least one type of water-soluble polymer, in which the disintegration starting time is within 40 seconds, and an indicator that indicates cohesion is 0.4 or more. The present invention also provides a method for producing the same and a powder composition or the like for use in said production method, the powder composition including a disintegrating particle composition containing at least one type of disintegrant and at least one type of water-soluble polymer.本發明提供一種具有優異之崩解性及凝集性之口腔內保持型崩解性固形製劑、其製造方法、及用於該製造方法之粉體組成物等。本發明係一種含有至少1種崩解劑及至少1種水溶性高分子，崩解之開始時間為40秒以內，且表示凝集性之指標為0.4以上之口腔內保持型崩解性固形製劑、該等之製造方法、及用於該製造方法之包含含有至少1種崩解劑及至少1種水溶性高分子之崩解性粒子組成物之粉體組成物。
