To provide formulations having improved storage stability of olmesartan medoxomil.SOLUTION: Provided is a granules containing olmesartan medoxomil, an excipient, and stearic acid which is a higher fatty acid. Provided is a tablet containing olmesartan medoxomil as an active ingredient, characterized by mixing, for example, (a) Olmesartan medoxomil having a 90% particle size of 10 to 50 μm, (b-1) an excipient, (c) a binder, (d) a disintegrant, and (e) stearic acid, subsequently performing wet granulation, subsequently adding further (b-2) an excipient to the obtained granules and mixing it, subsequently adding (f) a lubricant (excluding stearic acid) and mixing it, and subsequently tableting.SELECTED DRAWING: Figure 1【課題】オルメサルタンメドキソミルの保存安定性が向上した製剤の提供。【解決手段】オルメサルタンメドキソミル、賦形剤及び高級脂肪酸であるステアリン酸を含有してなる造粒物。例えば、（ａ）９０％粒子径が１０～５０μｍであるオルメサルタンメドキソミル、（ｂ－１）賦形剤、（ｃ）結合剤、（ｄ）崩壊剤、及び（ｅ）ステアリン酸を混合した後、湿式造粒し、次いで得られた造粒物にさらに（ｂ－２）賦形剤を加え、混合した後、（ｆ）滑沢剤（ステアリン酸を除く）を加え、混合した後、打錠することを特徴とするオルメサルタンメドキソミルを有効成分として含有する錠剤。【選択図】図１
