Shifting awareness among electronic dance music party attendees that drugs may contain fentanyl or other adulterants.
Drugs like ecstasy, cocaine, and counterfeit prescription pills can contain fentanyl. We examined knowledge about potential adulterationcontamination of such drugs among people attending electronic dance music (EDM) parties. Adults in New York City were surveyed entering randomly selected EDM parties during the summers of 2018 (n1,029) and 2019 (n559). Surveys assessed perceptions that 1) ecstasyMolly can contain adulterants more dangerous than MDMA, 2) cocaine can contain fentanyl, and 3) prescription pills from non-pharmacy sources can contain fentanyl. We compared prevalence of perceptions between 2018 and 2019. Prevalence of agreeing that cocaine can contain fentanyl increased from 42.1% to 58.6%, a 39.2% increase (p.003). Increases in agreement were not significant regarding ecstasy potentially containing adulterants (55.0% vs. 59.0%) and non-pharmacy prescription drugs potentially containing fentanyl (46.8% vs. 52.9%). Those reporting past-year ecstasy use in particular reported increased agreement that ecstasy can be adulterated (from 52.9% to 80.0%, a 51.2% increase p<.001) and those reporting past-year cocaine use reported increased agreement that cocaine can be adulterated (from 48.2% to 70.7%, a 46.7% increase p.016). Knowledge of potential adulteration or contamination of commonly used drugs in this high-risk scene is increasing. Continued education about possible drug contents is needed.