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Substance use initiation: the role of simultaneous polysubstance use
Janine V Olthuis1, Christine Darredeau, Sean P Barrett
1Department of Psychology, Dalhousie University, Halifax, Canada.
Drug and Alcohol Review
|May 23, 2012
Summary
Simultaneous polysubstance use (SPU) often occurs during first-time use of illicit drugs, suggesting alcohol, tobacco, or cannabis may initiate new substance experimentation. Understanding this pattern can improve interventions for substance use progression.
Area of Science:
- Addiction research
- Psychopharmacology
- Public health
Background:
- Simultaneous polysubstance use (SPU) is prevalent but its role in initiating substance use is understudied.
- Understanding substance use initiation is crucial for developing effective prevention and intervention strategies.
Purpose of the Study:
- To investigate the role of SPU during the first-time use of various substances.
- To determine if common co-substances predict initiation of novel substance use.
Main Methods:
- Structured interviews were conducted with 226 cannabis users regarding their substance use history.
- Participants detailed age of first use and co-administered substances for each drug tried.
Main Results:
- A majority (≥75%) of participants reported SPU during their first use of most illicit drugs.
- SPU was less common for initial alcohol, tobacco, and cannabis use.
- Co-use of alcohol, tobacco, and/or cannabis frequently accompanied first-time use of 'harder' drugs.
Conclusions:
- Initial episodes of alcohol, tobacco, or cannabis use may facilitate the initiation of other substance use.
- Identifying risk factors for substance use progression can be enhanced by understanding SPU during first-time use.
- Findings can inform targeted interventions to prevent substance use initiation and progression.
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