The present invention relates to a syringe (100) having a barrel (2), a plunger arranged to travel within said barrel (2) and a plunger rod (1) for driving the plunger in a bidirectional manner. The plunger rod (1) is provided with a head (8) at a distal end thereof and a plurality of protruding finger grip enhancing means (5) axially spaced along a length of the plunger rod (1).
