A nasal applicator for nasally administering medicinal active pharmaceutical substances and/or ingredients, in particular painkillers or analgetics, includes a dosage device for dosedly discharging the active pharmaceutical substance, dosage determining logic for determining the discharged amount of active pharmaceutical substance as well as a locking device for locking the dosage device, in particular when the determined amount of discharged active pharmaceutical substance reaches a predetermined level. The locking device for locking the discharge dosage device is controlled by an electronic control device with a patient data memory into which an individual patient's control data may be inputted via an input device for individually locking the dosage device for a specific patient.
