Urine Drug Tests Indicate Higher Prevalence of Combined Alcohol and Cocaine Use Compared to Alcohol Together with Cannabis or Amphetamine-A Possible Link to Cocaethylene.

These results, which were based on objective laboratory measures, indicated that combined ethanol and cocaine exposure was more prevalent than expected from drug use statistics. This may relate both to the common use of these substances in party and nightlife settings, and the amplified and prolonged pharmacological effect by the active metabolite cocaethylene.