PROBLEM TO BE SOLVED: To provide an aqueous liquid agent of risperidone having excellent storage stability and easy to drink.SOLUTION: An aqueous liquid agent of risperidone having excellent storage stability and easy to drink is produced by using risperidone, a pharmacologically allowable organic acid, a sugar alcohol and water as components and excluding a pH buffering agent and sodium saccharin.COPYRIGHT: (C)2008,JPO&INPIT【課題】保存安定性に優れ、飲用し易いリスペリドン水性液剤を開発すること。【解決手段】リスペリドン、薬理学上許容しうる有機酸、糖アルコール及び水を含有し、pH緩衝剤及びサッカリンナトリウムを含まないリスペリドン水性液剤とすることにより、飲用し易く、保存安定性の優れたリスペリドン水性液剤を得た。
