Disclosed is a drug injection device, comprising a drug delivery module and an analyte measurement module, such as a blood glucose meter. The injection device may include a support for receiving a reservoir or a cartridge, a drive means for expelling the fluid from the reservoir or cartridge, and an injection means fluidically coupled to the reservoir or cartridge. Additionally, the injection device comprises an analyte measurement module. Medical systems including embodiments of the injection device are also disclosed.
