The invention relates to a dry powder inhaler, having a base housing, having a capsule receptacle for a capsule containing dry powder, having at least one needle- or blade-like opening means, movably arranged in relation to the base housing, for opening the capsule, and having a mouthpiece, through which the dry powder from an opened capsule can be inhaled. The invention is distinguished in that the opening means are fastened on the mouthpiece, and that the mouthpiece can be moved in respect to the base housing out of a normal position into an opening position which opens the capsule.