I believe our standard dopamine concentration is 1.2 mg/ml, which comes from the pharmacy in 60 ml syringes. We have syringe pumps that have libraries which contain all the standard concentrations and formulas for meds like dop/dob, morphine, etc. We plug in the baby's weight and the dose, like 5 mcg/kg/min, and the pump figures out the rate for us, which of course we then have to double check.