An object of the present invention is to provide a medicine packaging device capable of detecting a phenomenon in which a medicine overflows from a packaging bag that should be originally packaged. A medicine packaging apparatus 10 superimposes a packaging paper supply unit 42 for supplying a packaging paper S for packaging a medicine M and a packaging paper S supplied from the packaging paper supply unit 42. A sealing device 50 that joins in a sealed state to form a packaging bag P, a medicine introduction portion 80 that introduces a medicine M from an open portion of the unsealed packaging bag P formed by the sealing device 50, and a medicine After the detection unit 90 that detects the presence of the medicine M in the introduction route of the medicine M by the introduction part 80 and the timing at which the sealing of the packaging bag P into which the medicine M has been introduced starts, the next through the medicine introduction part 80 It is possible to determine that a packaging failure has occurred on the condition that the presence of the medicine M is detected by the detection unit 90 within a period prior to the timing when the medicine M to be packaged in the packaging bag P is introduced. And a determination unit. [Selection] Figure 1【課題】本発明は、薬剤が本来分包されるべき分包袋から溢れ出してしまう現象を検知可能な薬剤分包装置の提供を目的とした。【解決手段】薬剤分包装置１０は、薬剤Ｍを包装するための分包紙Ｓを供給する分包紙供給部４２と、分包紙供給部４２から供給される分包紙Ｓを重ね合わせた状態で接合して分包袋Ｐを形成するシール装置５０と、シール装置５０によって形成された未封止状態の分包袋Ｐの開放部分から薬剤Ｍを導入する薬剤導入部８０と、薬剤導入部８０による薬剤Ｍの導入経路における薬剤Ｍの存在を検知する検知部９０と、薬剤Ｍが導入された分包袋Ｐの封止を開始するタイミング以降、薬剤導入部８０を介して次の分包袋Ｐに分包するための薬剤Ｍが導入されるタイミングよりも前の期間内に検知部９０により薬剤Ｍの存在が検知されることを条件として分包不良が生じたものと判定可能な判定部とを有する。【選択図】図１
