An inhalation device is provided with a simple structure which is capable of easily separating a base sheet and a lid sheet. The inhalation device is capable of tearing off a lid sheet from a base sheet of a medicine holding sheet. The inhalation device includes a base spool on which the base sheet is wound, a lid spool on which the lid sheet is wound and an air piece which is provided at a position opposing a blister of the base sheet from which the lid sheet has been separated and which has an inlet through which medicine passes. The air piece has a wedge portion which is inserted between the base sheet and the lid sheet at a separation point where the lid sheet separates from the base sheet.
