This recess forming device is equipped with: a recess forming unit (13) that uses a forming die to form a recess for housing a drug in a container film； a prescription data receiving unit (22) that receives prescription data comprising information pertaining to a prescription； 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 in the container film by the recess forming unit (13) is insufficient to house a single dose of the drug in the recess； a notification unit (24) that sends a notification that the recess capacity is insufficient； 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) so as form recesses in the container film, 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 a user that the recess capacity is insufficient.具備：凹部形成部(13)，係使用成形模具，將收容藥劑用的凹部形成於容器用薄膜；處方資料接收部(22)，係接收含有關於處方之資訊的處方資料；判斷部(23)，係在將一次服用分量的藥劑收容於藉由前述凹部形成部(13)來形成在容器用薄膜的凹部時，根據藉由前述處方資料接收部(22)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(24)，係用來通知前述凹部的容量不足；及控制部(25)，係當藉由前述判斷部(23)判斷前述凹的容量沒有不足時，控制前述凹部形成部(13)而在容器用薄膜形成凹部，當藉由前述判斷部(23)判斷前述凹部的容量不足時，控制前述通知部(24)來通知使用者前述凹部的容量不足。
