An injection device for setting and dispensing of a dose of a medicament, the device comprising: - an elongated housing to accommodate a cartridge filled with the medicament and sealed with a piston , the housing comprising a distal end and a proximal end, wherein the distal end points in the direction of a dispensing end of the injection device, - a piston rod extending along a first axis and being threadedly or slidingly engaged with the housing to apply a distally directed thrust to the piston of the cartridge , - a drive member rotationally or threadedly engaged with the piston rod and having a wheel section or geared section , - a drive sleeve extending along a second axis at a radial distance from the first axis and having a wheel section or geared section to mesh with the geared section of the drive member , - wherein a first radial distance (d1) between first and second axes at a distal end of the drive sleeve differs from a second radial distance (d2) between first and second axes at a proximal end of the drive sleeve , - a substantially tubular cartridge assembled inside the housing and extending along a third axis at a radial distance from the second axis and parallel to the second axis , characterized in that - the first and the third axis almost coincide but are oriented at a nonzero offset angle (A) and wherein the first axis and the third axis substantially overlap in a virtual crossing point (X) that is located distally from a distal end of the piston rod such that a radial extension of at least one of the geared sections of the drive sleeve and the drive member can be reduced compared to a parallel arrangement of the first and second axis . - an elongated housing to accommodate a cartridge filled with the medicament and sealed with a piston , the housing comprising a distal end and a proximal end, wherein the distal end points in the direction of a dispensing end of the injection device, - a piston rod extending along a first axis and being threadedly or slidingly engaged with the housing to apply a distally directed thrust to the piston of the cartridge , - a drive member rotationally or threadedly engaged with the piston rod and having a wheel section or geared section , - a drive sleeve extending along a second axis at a radial distance from the first axis and having a wheel section or geared section to mesh with the geared section of the drive member , - wherein a first radial distance (d1) between first and second axes at a distal end of the drive sleeve differs from a second radial distance (d2) between first and second axes at a proximal end of the drive sleeve , - a substantially tubular cartridge assembled inside the housing and extending along a third axis at a radial distance from the second axis and parallel to the second axis , characterized in that - the first and the third axis almost coincide but are oriented at a nonzero offset angle (A) and wherein the first axis and the third axis substantially overlap in a virtual crossing point (X) that is located distally from a distal end of the piston rod such that a radial extension of at least one of the geared sections of the drive sleeve and the drive member can be reduced compared to a parallel arrangement of the first and second axis . <EOS>