A device for dispensing individual doses of powder from respective packets of a carrier, the device including a support for a carrier having first and second side surfaces opposite each other, an array of cavities in which respective pockets are formed and a first lidding sheet sealed to the first side surface, a prodger member moveable towards and away from the second side surface of a supported carrier between a retracted and an extended position, a cam member adjacent to and moveable generally parallel with the second side surface of a supported carrier between a rest position and a primed position, wherein the cam member has a cam surface for engaging with the first prodger member such that movement of the cam member from the rest position to the primed position moves the prodger member from the retracted position to the extended position so as to press on the second side surface of a supported carrier and outwardly rupture the first lidding sheet of the supported carrier.