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Patterns of opioid and cocaine co-use: A descriptive study in a Canadian sample of untreated opioid-dependent individuals


Leri, F; Stewart, J; Fischer, B; Rehm, J; Brissette, S; Brochu, S; Bruneau, J; El-Guebaly, N; Noel, L; Tyndall, M; Wild, C (2005). Patterns of opioid and cocaine co-use: A descriptive study in a Canadian sample of untreated opioid-dependent individuals. Experimental and Clinical Psychopharmacology, 13(4):303-310.

Abstract

This study examined prevalence and patterns of co-use of opioids and cocaine in regular users of illicit opioids (N=729) recruited from 5 Canadian cities. Fifty-seven percent (n=417) reported having used both opioids and cocaine in the month and week preceding the interview; of these, 73% (n=304) were able to identify a typical pattern of daily co-use. In a typical day, injectors of opioids and cocaine (n=119) and injectors of opioids who inhaled cocaine (n=111) showed stable opioid use but variable cocaine use, which peaked at 21 hr. Overall, 30% of the individuals used both drugs exclusively in a sequential fashion, 35% reported taking opioids and cocaine within the same hour, and 35% reported taking them together at the same time or mixing them. These findings indicate that different individuals display different patterns of opioids and cocaine co-use. (PsycINFO Database Record (c) 2012 APA, all rights reserved)

Abstract

This study examined prevalence and patterns of co-use of opioids and cocaine in regular users of illicit opioids (N=729) recruited from 5 Canadian cities. Fifty-seven percent (n=417) reported having used both opioids and cocaine in the month and week preceding the interview; of these, 73% (n=304) were able to identify a typical pattern of daily co-use. In a typical day, injectors of opioids and cocaine (n=119) and injectors of opioids who inhaled cocaine (n=111) showed stable opioid use but variable cocaine use, which peaked at 21 hr. Overall, 30% of the individuals used both drugs exclusively in a sequential fashion, 35% reported taking opioids and cocaine within the same hour, and 35% reported taking them together at the same time or mixing them. These findings indicate that different individuals display different patterns of opioids and cocaine co-use. (PsycINFO Database Record (c) 2012 APA, all rights reserved)

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Swiss Research Institute for Public Health and Addiction
Dewey Decimal Classification:610 Medicine & health
Uncontrolled Keywords:Cocaine;co-use;opioid
Language:English
Date:2005
Deposited On:06 Aug 2014 10:23
Last Modified:05 Apr 2016 17:54
Publisher:American Psychological Association
ISSN:1064-1297
Publisher DOI:https://doi.org/10.1037/1064-1297.13.4.303

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