a method of reconstituting and administering an injectable fluid distributed to practitioners in dry - form includes receiving a drug or medicine in dry form , selecting a reconstitution concentration for the drug or medicine , reconstituting a desired number of units of the drug or medicine by adding diluent to the dry - form drug or medicine , selecting a syringe having units marked according to the selected reconstitution concentration , drawing up a desired number of drug or medicine units using the selected syringe , and administering a desired number of units according to the unit markings on the selected syringe . such a syringe includes a barrel , a plunger assembly that has a plunger handle and a piston , a needle , and a needle cap . the syringe includes a visual indicia , representing a first drug concentration contained in the barrel , that is distinguishable from a corresponding visual indicia , on a second syringe , representing a second drug concentration .