Now that many first responders carry naloxone, remember that paramedics should not ask these providers to administer it.
The direction to administer or prescribe (direct the dispensing of a drug to a person) medication is a controlled act and therefore must be delegated by a physician. You cannot delegate a delegated act to another care provider. This is operating outside of your scope of practice.
As the highest medical authority on scene, patient care should be provided as per the ALS PCS. Once paramedics have assumed care of the patient, other first responders may assist you in care provision. However, medications are to be administered by paramedics in accordance with the ALS PCS.