A drug delivery device for injecting medicament, said drug delivery device comprising: a tubular reservoir for accommodating a medicament, said reservoir extending along a longitudinal axis; a stopper slideably disposed in said reservoir; a spring for moving said stopper from a first position to a second position in said reservoir; at least one needle, said needle having a distal end for insertion into a patient, and a lumen extending proximally from said distal end, said lumen being in direct or indirect communication with said reservoir, wherein, at least a portion of said lumen extending proximally from said distal end extends along a reference axis not coaxial with said longitudinal axis; a needle driver for displacing said needle in a direction transverse to said longitudinal axis from a first state to a second state; and, an actuator, wherein activation of said actuator causes: said spring to move said stopper from said first position and towards said second position; and said needle driver to displace said needle from said first state and towards said second state, characterized in that, said needle moves relative to, and separately from, said reservoir with said needle being displaced from said first state and towards said second state, said needle driver displacing said needle from said first state and towards said second state under force applied to a mid-location of said needle driver between its ends (52, 54), and said needle driver includes a cantilevered arm (110, 112), deformation of said cantilevered arm (110, 112) causing displacement of said needle from said first state and towards said second state. a tubular reservoir for accommodating a medicament, said reservoir extending along a longitudinal axis; a stopper slideably disposed in said reservoir; a spring for moving said stopper from a first position to a second position in said reservoir; at least one needle, said needle having a distal end for insertion into a patient, and a lumen extending proximally from said distal end, said lumen being in direct or indirect communication with said reservoir, wherein, at least a portion of said lumen extending proximally from said distal end extends along a reference axis not coaxial with said longitudinal axis; a needle driver for displacing said needle in a direction transverse to said longitudinal axis from a first state to a second state; and, an actuator, wherein activation of said actuator causes: said spring to move said stopper from said first position and towards said second position; and said needle driver to displace said needle from said first state and towards said second state, characterized in that, said needle moves relative to, and separately from, said reservoir with said needle being displaced from said first state and towards said second state, said needle driver displacing said needle from said first state and towards said second state under force applied to a mid-location of said needle driver between its ends (52, 54), and said needle driver includes a cantilevered arm (110, 112), deformation of said cantilevered arm (110, 112) causing displacement of said needle from said first state and towards said second state. said spring to move said stopper from said first position and towards said second position; and said needle driver to displace said needle from said first state and towards said second state, said needle moves relative to, and separately from, said reservoir with said needle being displaced from said first state and towards said second state, said needle driver displacing said needle from said first state and towards said second state under force applied to a mid-location of said needle driver between its ends (52, 54), and said needle driver includes a cantilevered arm (110, 112), deformation of said cantilevered arm (110, 112) causing displacement of said needle from said first state and towards said second state.