“There’s No Heroin Around Anymore. It’s All Fentanyl.” Adaptation of an Opioid Overdose Prevention Counseling Approach to Address Fentanyl Overdose: Formative Study

Vanessa M McMahan   ¹ , MS, PhD ;   Justine Arenander   ¹ , MSW ;   Tim Matheson   ¹ , MS, PhD ;   Audrey M Lambert   ^{2, 3} , MPH ;   Sarah Brennan   ¹ , BA ;   Traci C Green   ^{4, 5} , MSc, PhD ;   Alexander Y Walley   ^{2, 3} , MSc, MD ;   Phillip O Coffin   ^{1, 6} , MIA, MD

¹ San Francisco Department of Public Health, San Francisco, CA, United States

² Grayken Center for Addiction, Clinical Addiction Research and Education Unit, School of Medicine, Boston University, Boston, MA, United States

³ Boston Medical Center, Boston University, Boston, MA, United States

⁴ Heller School for Social Policy and Management, Brandeis University, Waltham, MA, United States

⁵ Center of Biomedical Research Excellence on Opioids and Overdose, Rhode Island Hospital, Providence, RI, United States

⁶ Department of Medicine, University of California, San Francisco, San Francisco, CA, United States