The present invention aims to provide a preparation expected, to improve the bitter taste of an organic acid salt of vonoprazan and permit rapid dissolution of the organic acid salt of vonoprazan after administration. The present invention provides a preparation containing fine granules or granules containing (1) a core granule containing an organic acid salt of vonoprazan, (2) an intermediate layer containing the same organic acid as the organic acid forming the salt of vonoprazan in (1), or a salt thereof, and (3) a coating layer containing a water-insoluble polymer.
