Described is an autoinjector (1) comprising a case (2), a syringe carrier (8) slidably disposed within the case (2) and adapted to hold a syringe (3) including a stopper (6), a plunger (12) slidably disposed within the syringe carrier (8) and adapted to apply a force on the stopper (6), and a drive spring (10) disposed within the plunger (12) and biasing the plunger (12) relative to the syringe carrier (8).