An injection device for use with a syringe having a syringe body, a needle coupled thereto, and a plunger moveable through the body to eject medication from the syringe through the needle, includes a housing defining an inner space for holding a syringe and facilitating movement thereof from a first position in which the needle is contained fully within the housing and a second position in which the needle projects from the housing, and a drive member located within the inner space so that in use the drive member can engage the plunger of a syringe held within the housing. The device further includes a force applicator located within the inner space for providing a force to the drive member so as to move the syringe from the first to the second position and thereafter to move the plunger through the syringe body, a trigger mechanism, and a damper.