Smart injection system

A system, comprising:

• a mobile device comprising a processor and a wireless communications module communicatively coupled to the processor, wherein the wireless communications module is configured to wirelessly receive blood glucose values from blood glucose measuring devices or glucose values from continuously or quasi-continuously measuring devices that measure interstitially in tissue;
• and
• an administration device configured for administering a liquid medication in which a volume of a dose to be administered can be manually adjusted, wherein the administration device comprises a processor and a wireless communications module and a signal module communicatively coupled to the processor, the processor configured to cause the signal module to emit signals to an environment,
• wherein the processor of the mobile device is configured to calculate a dose to be administered based at least on received blood glucose values or received glucose values, and cause the calculated dose to be wirelessly transmitted to the administration device via the communications module of the mobile device, and
• wherein the processor of the administration device is configured to compare a manually adjusted dose to the calculated dose received from the mobile device, and, if the volume of the manually adjusted dose and a volume of the calculated dose are the same, the processor causes the signal module to emit a first signal to the environment.