Analysis of residual content of used syringes collected from low threshold facilities in Lausanne, Switzerland.
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- doi: 10.1016/j.forsciint.2016.07.021
- issn: 0379-0738
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Reduction, Harm Minimization, Harm Harm minimizationCiter ce document
E. Lefrançois et al., « Analysis of residual content of used syringes collected from low threshold facilities in Lausanne, Switzerland. », Serveur académique Lausannois, ID : 10.1016/j.forsciint.2016.07.021
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For the first time in Switzerland, an analysis of residual contents from used syringes collected from low threshold facilities was performed. This preliminary study is part of a wider project aiming to understand patterns of injecting drug use over time. Among the 100,000 syringes exchanged annually by the ABS foundation (Accueil Bas Seuil), 113 were collected following a purposive sampling method and analysed by gas chromatography coupled with mass spectrometry (GC-MS). Four syringes (4% of the sample population) contained no substances take into consideration the limit of the method. Cocaine was the most commonly observed compound and was detected in 77 syringes (68%), whilst users reported syringes with cocaine among those analysed in this study. Heroin was detected in 49 syringes (43%) and reported by 53 users returning syringes; midazolam was detected in 31 syringes (27%) and reported as the medicine Dormicum(®) in 22 occurrences. No new or unusual illicit drug was detected in the sample. The results show the presence of cocaine in more than half of the sample, an absence of new or unusual illicit drugs, as well as very few traces of methadone, which suggests that this substitution drug is rarely injected. This preliminary study also demonstrates the potential of this developed methodology for monitoring purposes. An ongoing and more systematic approach could allow to detect modifications in drug use patterns among the target population as well as the appearance of new and hazardous substances. Such systematic and timely results could allow an adaptation of harm reduction interventions.