The present invention provides a drug injection device (1) for delivering multiple doses of a drug. The drug injection device (1) comprises a housing (2) extending along a main axis and a movement relative to said housing (2) from a first position to a second position for causing release of a dose of drug. A dose release mechanism comprising a configured piston rod (60), the piston rod (60) extending between a proximal piston rod end and a distal piston rod end and including a dosing track (63). The piston rod (60) is further movable with respect to said housing (2) from an initial pre-use position to a final stop position, so as to cause a cumulative release of a predetermined total dose. A mechanism, a dose track follower (17) fixed to the housing (2) and adapted to run on the dose track (63) during dose release, and the dose release. A dose setting mechanism operable to set said dose emitted by the mechanism, and electronic means (82, 90, 91, 92, for registering the dose setting operation and registering the dose size of the emitted dose. 95) and an indicator (81) adapted to indicate the size of the current set dose, said electronic means (82, 90, 91, 92, 95) being a dose changing operation of said dose setting mechanism. A display configured to provide a first type of update of the display (81) in response to the electronic means (82, 90, 91, 92, 95) being registered. By calculating the current cumulative dose from the dose size of the released dose, thereby providing an updated value of the total amount released, and comparing the current cumulative dose with the predetermined total dose. Determine the remaining dose of Providing a second type update of the indicator (81) when the current set dose exceeds the current remaining dose during the dose increasing operation of the dose setting mechanism； Update is different from the first type update, the final end stop position is defined by the track end configuration of the dosing track (63) between the proximal p
