PROBLEM TO BE SOLVED: To provide an injection which can form depot after administering into a living body using a cystine derivative.SOLUTION: The invention provides a non-aqueous injection containing an active ingredient and a cystine derivative represented by the following general formula. (Where, R1 represents an alkyl group which may have a substituent, an alkoxy group, nitro group, nitrile group, amino group, and alkylamino group which may have a substituent, or a halogen atom, and R2 represents a hydroxy group or an amino group.)SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】シスチン誘導体を用い、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シスチン誘導体とを含有する非水性注射剤。(下記式中、R1は、置換基を有してもよいアルキル基、置換基を有してもよいアルコキシ基、ニトロ基、ニトリル基、アミノ基、アルキルアミノ基又はハロゲン原子を表し、R2は、ヒドロキシ基又はアミノ基を表す。)【選択図】なし
