"A more prosaic, but no less important, legal barrier to widespread naloxone access is the Food and Drug Administration’s (FDA) classification of naloxone as a prescription drug. This means that public health and harm reduction agencies cannot distribute naloxone like condoms or sterile syringes. Instead, naloxone must be prescribed by a properly licensed health care provider after an individualized evaluation of the patient. Because health care providers have to be involved, naloxone programs must deal with concerns about liability, which among doctors can be powerful even when they are not wellfounded in fact.31 The prescription status raises the cost of naloxone distribution and makes it illegal to give naloxone to lay people willing to administer the drug to others suffering an overdose."

Source

Burris, Scott; Beletsky, Leo; Castagna, Carolyn; Coyle, Casey; Crowe, Colin; and McLaughlin, Jennie Maura, "Stopping an Invisible Epidemic: Legal Issues in the Provision of Naloxone to Prevent Opioid Overdose," Drexel Law Review, Philadelphia, PA: Earle Mack School of Law, Spring 2009, Vol. 1, Number 2.