A powder inhaler device having a body provided with a dispenser orifice； a reservoir containing a dose of powder to be dispensed； a reservoir opening mechanism for opening a reservoir on each actuation； a dispersion chamber including an outlet that is connected to the dispenser orifice, and an inlet that is connected to the opening mechanism and that receives the dose of powder from the open reservoir. The dispersion chamber containing a movable element, such as a ball. The device further having a remote drive mechanism for remotely driving the movable element, the drive mechanism acting without contact with the movable element so as to set it into motion in the dispersion chamber.
