A package for a container including a tubular barrel having open distal and proximal ends, the proximal end being sized and shaped to receive a plunger, and the distal end being sized and shaped to receive an injection needle, the package including a plunger rod for the container, a part of the plunger rod being shaped complementarily to at least a part of the external shape of the tubular barrel, and a tray connectable to the plunger rod, the tray and the plunger rod forming the package when they are connected to each other.