A syringe calibrated for use with a predetermined medication and including a barrel, a plunger received through an end of the barrel and movable relative thereto, a tip disposed at one end of barrel and configured to be affixed to a device compatible for use with the syringe, a dosage schedule of the predetermined medication marked on the syringe and expressed as a ratio of a patient characteristic to a dosing unit of measurement, a first set of dosing indicia marked on the syringe and expressed as the predetermined patient characteristic, and a second set of dosing indicia marked on the syringe and expressed as the dosing unit of measurement.