Provided is an orally disintegrating tablet containing edoxaban, a pharmacologically acceptable salt thereof, or a solvate thereof. The orally disintegrating tablet contains: (A) edoxaban, a pharmacologically acceptable salt thereof, or a solvate thereof; (B) an organic acid; (C) a water-soluble polymer, the content of which is 0.1-2.0 wt% with respect to the total weight of the tablet; and (D) a disintegrating agent.提供一種含有依度沙班(edoxaban)、其藥理容許鹽、或該等的溶劑合物之口腔崩散錠。一種口腔崩散錠,其含有:(A)依度沙班、其藥理容許鹽、或該等的溶劑合物、(B)有機酸、(C)相對於錠劑的總重量為0.1~2.0重量%的水溶性高分子、及(D)崩散劑。