Abstract: A syringe has a syringe barrel comprising a proximal end and a distal end. At the proximal end there is a backstop with which a plunger stopper arranged in the syringe barrel is secured against inadvertent withdrawal. The backstop has at least two claw-like catch hooks arranged outside the syringe barrel at mutually offset circumferential positions. According to one aspect of the invention, the catch hooks are arranged on a plate-shaped finger support sitting at the proximal end of the syringe barrel.