An accessory (10) for a syringe (12) includes a body (14) sized and shaped in use to locate either over finger flanges (24) on a syringe or to a barrel of a syringe. Securing means (16), in use, secure the body to either the finger flanges or the barrel (22) of a syringe. The body defines a primary bay (38) for receiving a plunger rod (26) therein, the primary bay: (i) includes at least one nipple (18) extending from the body into the primary bay, the nipple forming a constriction along the primary bay through which the plunger rod must, in use, pass before being captured within the primary bay with a portion of the body engaging the array of notches and/or protuberances (34) on the plunger rod and (ii) is sized and shaped such that, in use, when the body is secured to finger flanges or barrel of a syringe and a plunger rod is received and captured within the primary bay, the longitudinal axis of the plunger rod is aligned with the longitudinal axis of the syringe barrel.