This drug supplying device is equipped with: a recess forming unit (13) in which the capacities of the recesses formed in a container film by each of a plurality of forming dies are mutually different； a drug supplying unit (14) that supplies a drug to each formed recess； a prescription data receiving unit (22) that receives prescription data； a determination unit (23) that determines, on the basis of the prescription data received by the prescription data receiving unit (22), whether or not the capacity of the recess formed by the single forming die currently in use from among the plurality of forming dies is insufficient to house a single dose of the drug in the recess； a notification unit (24) that notifies a user that the recess capacity has been determined insufficient by the determination unit (23)； and a control unit (25) that, in cases in which the determination unit (23) has determined that the recess capacity is not insufficient, controls the recess forming unit (13) to continue using the single forming die currently in use while also controlling the drug supplying unit (14), and in cases in which the determination unit (23) has determined that the recess capacity is insufficient, controls the notification unit (24) so as to notify the user that the recess capacity is insufficient.具備：凹部形成部(13)，其複數個成形模具的各個在容器用薄膜形成之凹部的容量彼此不同；藥劑供給部部(14)，係將藥劑供給至所形成的凹部；處方資料接收部部(22)，係接收處方資料；判斷部部(23)，係在將一次服用份量的藥劑收容於在前述複數個成形模具之中所使用中的一個成形模具所形成的凹部時，根據藉由前述處方資料接收部部(2)2所接收的前述處方資料來判斷前述凹部的容量是否不足；通知部部(24)，係將藉由前述判斷部所判斷之前述凹部的容量不足通知使用者；控制部，係當前述判斷部部(23)判斷前述凹部的容量沒有不足時，直接使用前述使用中的一個成形模具來控制前述凹部形成部部(13)並控制前述藥劑供給部部(14)，當前述判斷部部(23)判斷凹部的容量不足時，控制前述通知部部(24)通知使用者前述凹部的容量不足。
