Increases in the use of drug testing kits among nightclub and festival attendees in New York City who use ecstasy, 2017-2022.

The use of drug testing kits has increased among EDM event attendees who use ecstasy and, at the same time, among those who had tested their ecstasy, suspected adulteration has decreased. Continued interest in understanding ecstasy contents among this population suggests the need for formal drug checking services.