1. An inhalation device for use with a medicament pack having a plurality of containers for containing medicament in powder form wherein the containers are spaced along the length of and defined between two peelable sheets secured to each other, said inhalation device comprising:an opening station for receiving a container of a medicament pack being used with said inhalation device; a peeler positioned to engage peelable sheets of a container which has been received in said opening station so as to peel apart the peelable sheets, opening the container; an outlet, positioned to be in communication with an opened container, through which a user can inhale medicament in powder form from such an opened container; and an indexer positioned to index in communication with said outlet containers of a medicament pack in use with said inhalation device.