PROBLEM TO BE SOLVED: To provide an injection which can form depot using an ascorbic acid derivative after administering into a living body and the like.SOLUTION: The invention provides a non-aqueous injection containing an active ingredient and an ascorbic acid derivative represented by the following general formula. (In the following formula, n represents an integer of 6-22.)SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】アスコルビン酸誘導体を用い、生体内等への投与後にデポを形成することができる注射剤を提供すること。【解決手段】有効成分と下記一般式で表わされるアスコルビン酸誘導体とを含有する非水性注射剤。(下記式中、nは6~22の整数を表す。)【選択図】なし