CPC A61K 9/14 (2013.01) [A61K 9/0056 (2013.01); A61K 9/2018 (2013.01); A61K 9/2027 (2013.01); A61K 9/2054 (2013.01); A61K 31/4439 (2013.01); A61K 47/12 (2013.01)] | 16 Claims |
1. A preparation comprising fine granules or granules comprising
(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,
wherein the organic acid salt of vonoprazan is vonoprazan fumarate, the organic acid or a salt thereof in said (2) is fumaric acid or a salt of fumaric acid.
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