Locations Offering Free Naloxone In South Carolina: Locations Offering Free Naloxone In South Carolina: Cornerstone is a designated "Community Distributor" of Narcan naloxone nasal spray. You can get Narcan at our offices in Greenwood, Edgefield, McCormick, or Abbeville. A Community Distributor is a public or private organization that provides services to individuals who may be at risk for an opioid overdose. These organizations can be found across the state, and they maintain a supply of naloxone, which can reverse an overdose.