A medicine feeding unit configured to feed solid medicines, the unit including: a medicine feeder and a driven shaft； and a support having a driving shaft that is connected with the driven shaft, the support being configured to guide the medicine feeder so as to slide in a direction intersecting the axial direction of the driving shaft, and to detachably support the medicine feeder. The driven shaft has a driven shaft body and a driven engagement member. The driving shaft has a driving shaft body and a driving engagement member. The unit further includes a retraction mechanism configured to retract the driven engagement member in the axial direction so as not to interfere with the driving engagement member when the medicine feeder is guided to slide with respect to the support.
