To provide: a disintegrating tablet that has superior tablet hardness and disintegrating ability, and that can contain a high dose of an effective ingredient (active ingredient)； and a disintegrating particulate composition that is to be contained in the disintegrating tablet； etc. The present invention pertains to: a disintegrating particle composition characterized by containing a disintegrating agent component and microfibrous cellulose, but not containing an excipient； and a disintegrating tablet having superior tablet hardness and disintegrating ability, and characterized by containing the disintegrating particulate composition, but not containing an excipient； etc.本發明提供一種具有優異之錠劑硬度及崩解性且能夠以高用量含有有效成分（活性成分）之崩解錠劑、及該崩解錠劑中所包含之崩解性粒子組成物等。本發明係關於一種崩解性粒子組成物、及具有優異之錠劑硬度及崩解性之崩解錠劑等，該崩解性粒子組成物含有崩解劑成分及微小纖維狀纖維素且未含賦形劑，該崩解錠劑含有該崩解性粒子組成物且未含賦形劑。
