An inhalation therapy device includes an atomizer for atomizing a drug which is advantageously present in the form of a fluid into an atomization chamber so that an aerosol or mist is provided in the atomization chamber. The patient or user can inhale the aerosol produced by the atomizer from the atomization chamber via a mouthpiece. The ampoule is inserted into an ampoule holder holding the fluid-containing ampoule. The inhalation therapy device also includes an opening unit for opening the fluid-containing ampoule. The ampoule holder advantageously includes a first part, disposed displaceably in relation to the opening unit, thereby allowing an ampoule present in the ampoule holder to be displaced in the direction of the opening unit.
