There is provided a medicament dispenser comprising a medicament container having a dispensing mechanism; a container seat for receipt of the container; an anchor station; and a coupling between said container seat and said anchor station capable on deformation of moving the container seat relative to the anchor station to actuate the dispensing mechanism. The coupling is reversibly deformable in response to the application of non-mechanical energy thereto. The non-mechanical energy may comprise heat energy, electrical current energy, electrical field energy or magnetic field energy.