An inhaler for dispensing measured doses of a medicament, the inhaler comprising a housing, an actuator element (508) movable with respect to the housing； a first link element (504) to engage with a medicament container； and a restriction surface (514) that can be connected to the first link element (504) for the restriction movement of the first link element (504) from a first position, in which the medicament container is located in a folded configuration, to a second position, in which the medication container is located in a discharge configuration for dispensing medication； wherein the restriction surface (514) is movable from a restriction position in response to the movement of the actuator element (508) to allow movement of the first link element (504) from the first position to the second position, allowing said movement of the first link element (504) for the medicament container to move from said folded configuration to said discharge configuration； wherein the first link element (504) is positioned with respect to the displacement link element (502) to rotate the displacement link element (502) in a first direction of rotation when moving from said first position to said second position； and the restriction surface (514) is positioned with respect to the displacement link element (502), when it is in said restraint position, to restrict the rotation of the displacement link element in said first direction of rotation, where the restriction surface (514) encounters a contact surface (512) of the displacement link element (502) when it is in said restriction position, and where the restriction and contact surfaces (514, 512) are disposed of such that they slide with respect to, and bumping into each other, when the restriction surface (514) moves from the restriction position, characterized in that the restriction surface (514) is movable from said restriction position along a partially circular path having a center of curvature coinciding with an axis aro
