PROBLEM TO BE SOLVED: To provide a technique of obtaining an orally disintegrating tablet having sufficient hardness and disintegratability.SOLUTION: A method for producing orally disintegrating tablet containing pharmaceutically active ingredients, low-substituted hydroxypropyl cellulose of fine powder grade, and binder has: a process of subjecting a powder composition containing low-substituted hydroxypropyl cellulose of fine powder grade to wet stirring granulation by using binding liquid containing water to obtain granules and a process of tabletting a granule composition containing the granules.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】十分な硬度と崩壊性を有する口腔内崩壊錠を得る技術を提供する。【解決手段】医薬有効成分と、微粉グレードの低置換度ヒドロキシプロピルセルロースと、結合剤と、を含む口腔内崩壊錠の製造方法であって、微粉グレードの低置換度ヒドロキシプロピルセルロースを含む粉体組成物を、水を含む結合液を用いて湿式撹拌造粒して顆粒を得る工程と、前記顆粒を含む顆粒組成物を打錠する工程と、を含む製造方法。【選択図】なし