An inhaler, particularly for a horse, having a reservoir for dispensing a medicament preparation held under excess pressure, with a discharge nozzle for forming an aerosol of the medicament preparation and with a chamber for holding and temporarily storing the aerosol, which is located on the outlet side, a respiratory orifice adapter for a respiratory orifice, particularly a nostril, while according to a first aspect the reservoir is secured in position, at least in the axial direction, according to a second aspect the discharge nozzle has a direction of discharge which is inclined by more than 5° and less than 50° relative to a central axis of the reservoir or a direction of actuation for dispensing the aerosol, and according to a third aspect, the reservoir has a dispensing valve which is arranged at the top in the position of use of the inhaler.
