Provided is a drug packaging device with which it is possible to maintain, at a constant level, the tension applied to a package. This drug packaging device comprises: a package feeder unit that feeds packages a package transfer unit that transfers packages fed out from the package feeder unit, a tension-imparting unit (11X) that imparts tension to the package, and a transfer control unit that controls at least the package feeder unit. The transfer control unit controls at least the package feeder unit in such a manner that packages are transferred intermittently by means of the package transfer unit, and while intermittent transfer of packages is being executed, the quantity of packages fed out by the package feeder unit is made smaller than the quantity of packages transferred by the package transfer unit, and while intermittent transfer of packages is stopped, executes a feed of the difference in quantity of the quantity of the packages fed out by the package feeder unit with respect to the quantity of packages transferred by the package transfer unit.Linvention concerne un dispositif demballage de médicaments avec lequel il est possible de maintenir, à un niveau constant, la tension appliquée à un emballage. Le dispositif demballage de médicaments de linvention comprend : une unité dalimentation en emballage qui assure lalimentation en emballages une unité de transfert demballages qui transfère les emballages fournis depuis lunité dalimentation en emballages, une unité dapplication de tension (11X) qui applique une tension à lemballage et une unité de commande de transfert qui commande au moins lunité dalimentation en emballages. Lunité de commande de transfert commande au moins lunité dalimentation en emballages de telle sorte que des emballages soient transférés de manière intermittente au moyen de lunité de transfert demballages et pendant lexécution du transfert intermittent demballages, la quantité demballages fournis par lunité dalimentation en emballages
