PROBLEM TO BE SOLVED: To provide a method for storing a transdermally/transmucosally absorbable preparation containing a drug consisting of molecules having an amino group substituted with a lower alkyl group, and while sufficiently inhibiting the production of a dealkylation substance inviting the inactivation of the drug, capable of stably maintaining the drug in the transdermally/transmucosally absorbable preparation for a long period of time, and a package of the transdermally/transmucosally absorbable preparation.SOLUTION: This method for storing the transdermally/transmucosally absorbable preparation is characterized by sealing the transdermally/transmucosally absorbable preparation containing the drug consisting of the molecules having the amino group substituted with the lower alkyl group in a container of a low oxygen atmosphere.COPYRIGHT: (C)2012,JPO&INPIT【課題】 低級アルキル基で置換されたアミノ基を有する分子からなる薬物を含有する経皮・経粘膜吸収製剤において、薬物の不活性化を招く脱アルキル体の生成を充分に抑制しつつ、経皮・経粘膜吸収製剤中の薬物を長期間に亘って安定に維持することができる保存方法及び経皮・経粘膜吸収製剤包装体を提供すること。【解決手段】 低級アルキル基で置換されたアミノ基を有する分子からなる薬物を含有する経皮・経粘膜吸収製剤を低酸素雰囲気の容器内に封入することを特徴とする経皮・経粘膜吸収製剤の保存方法。【選択図】 なし
