Method and sedation delivery system including a pump assembly and a co-formulation of first and second drugs

A drug delivery system comprising:

• a) a plurality of drug containers each containing a different predetermined drug co-formulation of predetermined first and second drugs, wherein the first drug has a sedative effect, wherein the second drug has an analgesic effect, and wherein the different predetermined drug co-formulations include at least four different drug co-formulations;
• b) a pump assembly, wherein each of the drug containers is operatively connectable to the pump assembly, wherein one of the drug containers is operatively connected to the pump assembly, and wherein the pump assembly is adapted to deliver the drug co-formulation contained in the operatively-connected one of the drug containers to a patient during a medical procedure;
• c) a sensor adapted to sense a variable associated with each of the drug containers and output a different drug co-formulation identification signal associated with each of the drug containers based on the sensed variable;
• and
• d) a controller operatively connected to the sensor and to the pump assembly, wherein the controller is programmed to identify the drug co-formulation for the operatively-connected one of the drug containers from the associated identification signal and to control the pump assembly to deliver the drug co-formulation of the operatively-connected one of the drug containers to the patient during the medical procedure according to a corresponding drug delivery algorithm which is different for each of the drug containers.