"Naloxone distribution programs in the US are ongoing in Chicago, Baltimore, San Francisco, New Mexico and New York City. Additional community-based organizations interested in minimizing the adverse consequences of drug use in several cities in the US, including Los Angeles, Providence, Pittsburgh and Boston, are in the process of planning and developing naloxone administration programs for drug users."

Source

Tinka Markham Piper, Sasha Rudenstine, Sharon Stancliff, Susan Sherman, Vijay Nandi, Allan Clear, and Sandro Galea. "Overdose prevention for injection drug users: Lessons learned from naloxone training and distribution programs in New York City," Harm Reduction Journal, January 25, 2007.