A medicine feeding device including a support portion (32) for supporting a seal surface side of a press through pack (5), a press section (33) for pressing the housing recess portions (9) from one side other than the seal surface of the press through pack (5), and a cutter (38) for making a cut slit in the sheet (11) at a boundary portion between the housing recess portions (9) and the seal surface (8) at least before the sheet (11) is broken or the medicine (6) is damaged by the pressure exerted by the press section (33).