A syringe system comprising a syringe 106, a syringe plunger 100 and a deformable bung 102. The syringe plunger 100 comprising an elongate shaft 107, the end 108 of which is configured for slidable engagement within a recess 110 provided in the deformable bung 106. The end of the shaft 108 also being provided with an engagement surface 106 which interacts, when the bung 102 has reached the end of the barrel 104 where it cannot travel any further, with the base 120 of the recess 110. Continued force applied to the syringe plunger 100 thus produces a relative force between the end 108 of the syringe plunger 100 and the bung 102 such that the bung 102 deforms longitudinally to conform to the form of the end of the barrel 104 to ensure that the contents held within the barrel 104 of the syringe 106 are expelled.
