PROBLEM TO BE SOLVED: To obtain an oral solid composition with covered bitterness of a medicine exhibiting bitterness.SOLUTION: The oral solid preparation is obtained by granulating a composition containing (A) a medicine exhibiting bitterness and (B) a hydrophilic polymer in the presence of water and drying the granule until its water content reaches &le7.5 mass%.COPYRIGHT: (C)2008,JPO&INPIT【課題】苦味を呈する薬物の苦味を隠蔽した経口固形組成物の提供。【解決手段】(A)苦味を呈する薬物及び(B)親水性高分子を含有する組成物を水の存在下に造粒し、次いで水分量7.5質量%以下になるまで乾燥することにより得られる経口固形製剤。【選択図】なし