A medication and identification information transfer system is provided that includes a medication vial, a secondary medication container (syringe) and a medication information transfer apparatus. The medication information transfer apparatus, when coupled to a vial, can transfer information indicative of the contents of the vial to an intelligent injection site. The medication information transfer apparatus has a shape and size enabling it to be connected to a vial adapter for removal of medication from the vial transfer it to a syringe for delivery to an injection site while simultaneously transferring information about the medication in the vial to the injection site. In some implementations, the medication injection site can be placed on a fluid delivery line for infusion into a patient. Related apparatus, systems, and kits are also disclosed.