The present invention provides an orally disintegrating powder comprising cilostazol as an active ingredient and mannitol in an amount of 70% by weight or more, which can be taken without water and can be disintegrated in oral cavity. Said powder is suitable for patients to whom cilostazol is applied, especially for aged patients and patients suffering from dysphagia.本發明提供一種口腔崩解粉末,其包含用量70重量%或更多之作為活性成分的西洛他唑及甘露糖醇,該口腔崩解粉末可不需水而服用,並且可在口腔中崩解。該粉末適用於施加西洛他唑的患者,尤其是高齡患者及患有吞嚥困難的患者。