Functions and harms associated with simultaneous polysubstance use involving alcohol and cocaine

Objectives: Alcohol is among the most common psychoactive substances to be co-administered with a variety of other drugs. It is frequently used simultaneously (i.e. on the same occasion) with cocaine. The objectives of this qualitative investigation are (1) to explore the functions and motivational factors underlying the simultaneous use of alcohol and cocaine, and (2) to explore the associated consequences. Methods: In-depth open-ended interviews with simultaneous alcohol and cocaine users were conducted at a residential treatment centre in Ontario, Canada (n = 10). The interview transcripts were coded by two independent coders. A thorough content analysis of the transcripts was performed in order to identify themes. Findings: Respondents used cocaine and alcohol simultaneously to control cravings; to alter their state of consciousness; to manage their emotions; to enhance sexual, physical and social functioning; and to minimise financial costs. Negative consequences experienced from simultaneous use include psychological, physical, social and financial harms. These findings have been used to develop potential hypotheses for testing in future studies.