The purpose of the present invention is to provide a tableted medicinal composition comprising nalfurafine or a pharmacologically acceptable acid addition salt thereof, said composition having a high moldability and excellent quality control properties of analogous substances. Provided is a tableted medicinal composition comprising nalfurafine or a pharmacologically acceptable acid addition salt thereof, a binder component and a carrier, wherein: the content of nalfurafine or a pharmacologically acceptable acid addition salt thereof is 0.1-10 µg； and the weight of the binder component is 100,000-2,000,000 wt% relative to the weight of nalfurafine or a pharmacologically acceptable acid addition salt thereof and 5-20 wt% relative to the total weight of the obtained medicinal composition, or 20,000-500,000 wt% and 1-5 wt% relative to the total weight of the obtained medicinal composition.
