the Application is dedicated to patients and those who help and assist them to understand how to use the device with demonstration videos, with a description of the various steps in using the device and with a simulation that helps to remember these steps. The App also allows you to memorize the expiry date and program a warning that will remind you when to replace the autoinjector.ATTENTION. The App also contains all the recommendations relating to the correct use of the device and the notification of unwanted effects.It is in no way suitable in itself for carrying out diagnostic activities, but it is a mere aid in using the injector and does not give treatment indications. Any conclusions, judgments or clinical diagnoses are therefore the sole responsibility of the medical professional.the Application was developed on behalf of Bioprojet-Italia.