A method of using a dry-powder inhaler, including providing a dry-powder inhaler (100 200) having a body (110 210) containing a dispersion chamber (111 211), a dispenser orifice (131 231) through which the user inhales, a loading opening (121 220) that receives a capsule (10) containing a dose of dry powder for inhaling, and at a movable portion (130 260) that moves relative to the body between a first end position and a second end position inserting a full capsule (10) into the loading opening (121 220) moving the movable portion from one of its end positions to its other end position to open the capsule and empty the powder into the dispersion chamber inhaling the powder through the dispenser orifice and returning the movable portion towards its initial position so as to open the dispersion chamber and eject the empty capsule.
