The present invention provides a system (1) comprising: a pen injection device (10) holding a specific type of medicament and comprising a dose expelling mechanism and pen communication means (15), a mobile communication unit (30) comprising mobile communication means (35) adapted to communicate with the pen communication means (15), and a software application program configured to determine a recommended type of medicament to be delivered to a user based on information indicative of a physiological condition of the user, wherein the pen injection device (10) further comprises indication means which in a first state indicates that the dose expelling mechanism is to remain idle and in a second state indicates that the dose expelling mechanism is available for operation, and wherein the mobile communication unit (30) is configured to, via a communication from the mobile communication means (35) to the pen communication means (15), a) prompt a change of state of the indication means from the second state to the first state in response to the recommended type of medicament to be delivered differing from the specific type of medicament, and/or b) prompt a change of state of the indication means from the first state to the second state in response to the recommended type of medicament to be delivered corresponding to the specific type of medicament.La présente invention concerne un système (1) comprenant : un dispositif d'injection de type stylo (10) contenant un type spécifique de médicament et comprenant un mécanisme d'expulsion de dose et un moyen de communication de stylo (15), une unité de communication mobile (30) comprenant un moyen de communication mobile (35) conçue pour communiquer avec le moyen de communication de stylo (15), et un programme d'application logicielle configuré pour déterminer un type recommandé de médicament à administrer à un utilisateur sur la base d'informations indicatives d'une condition physiologique de l'utilisateur, le dispositif d'injec
