The present invention relates to a drug delivery comprising a housing (10) adapted to retain a cartridge (16) and a piston rod (26), the piston rod (26) being adapted to drive a piston (28) so as to engage the piston (28) into the cartridge (16) in response to operating an operating button (30), and an indicator means (40) being capable of revealing usage related information of the drug delivery device (5), the indicator means (40) being movable with respect to the housing (10). Furthermore, using indicator means (40) on a drug delivery device (5), wherein the so as to reveal usage related information of the drug delivery device (5), wherein the indicator means (40) being movable with respect to a housing (10) of the drug delivery device (5) is disclosed.Dispositif d'administration de médicaments fournissant des informations en rapport avec l'utilisation.
