A dry powder inhaler may include a housing having a lower housing part defining at least one air inlet and at least one air outlet. At least one container may be disposed in the lower housing part. The at least one container may include a cavity for a dry powder drug. A chamber may be disposed above the at least one container for deaggregation of the dry powder drug after emptying of the dry powder drug from the cavity. Upon inhalation by a user at the at least one air outlet, air may flow from the at least one air inlet into and through the chamber to empty the dry powder drug from the cavity and convey the dry powder drug to the at least one outlet.
