Abstract: According to the invention there is provided a medicament dispenser for use with a medicament carrier having a plurality of pockets for containing medicament wherein said pockets are spaced along the length of and defined between two peelable sheets secured to each other, said dispenser having an internal mechanism for accessing said medicament contained within said medicament carrier. The internal mechanism is operated by an electronic drive system.

Abstract: There is provided a propellant-operable self-activating and self-returning metering valve for an aerosol container for dispensing a formulation comprising a substance in a fluid propellant contained therein. There is also provided a canister for use in a metered dose inhaler having the valve thereon.