A top loading container for housing a fluid vial is described. The top loading container includes a calculation aid formed specific to the fluid vial. The top loading container is formed from a bottom, a top, and an inset side wall there between. The top is adapted to be securable to a fluid vial so that the fluid vial rests in a suspended position within the interior of the top loading container. An inner label is permanently attached to the sidewall having at least one row of dosing indicia coordinated with a base line indicia selected from the group of weight, age, fluid volume or area. An outer label is rotatably secured over the inner label with at least one transparent window allowing selective viewing of the dosing and base line indicia and predetermined dosing rate.
