An assembly for the inhalation of a powdery substance is described, wherein the assembly comprises a storage chamber configured to hold a plurality of doses of the substance and an organizing member rotatably arranged within the storage chamber for agitating the substance when the organizing member is rotated with respect to the storage chamber. The organizing member comprises a main body and a cut-out, wherein the main body comprises a solid section of the organizing member, and wherein the angular dimension of the cut-out is smaller than the angular dimension of the main body. Furthermore, the use of an organizing member for agitating a substance is provided. Furthermore, an inhalation device for the inhalation of a powdery substance is described.
