Pregabalin Abuse in Combination With Other Drugs: Monitoring Among Methadone Patients

IntroductionIn recent years, there has been an increase in the non-medical use of psychoactive prescription drugs including pregabalin (PGB). Studies have shown that multiple drug users and patients in methadone treatment programs administered PGB at high dosages in order to achieve euphoria, reduce...

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Main Authors: Massimo Lancia, Angela Gambelunghe, Alessio Gili, Mauro Bacci, Kyriaki Aroni, Cristiana Gambelunghe
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-02-01
Series:Frontiers in Psychiatry
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fpsyt.2019.01022/full
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author Massimo Lancia
Angela Gambelunghe
Alessio Gili
Mauro Bacci
Kyriaki Aroni
Cristiana Gambelunghe
author_facet Massimo Lancia
Angela Gambelunghe
Alessio Gili
Mauro Bacci
Kyriaki Aroni
Cristiana Gambelunghe
author_sort Massimo Lancia
collection DOAJ
description IntroductionIn recent years, there has been an increase in the non-medical use of psychoactive prescription drugs including pregabalin (PGB). Studies have shown that multiple drug users and patients in methadone treatment programs administered PGB at high dosages in order to achieve euphoria, reduce withdrawal symptoms, or potentiate the effects of methadone. For these reasons, accurate toxicological monitoring is required for these high-risk individuals.Materials and MethodsThe present study investigated whether PGB could be detected in the hair samples of 250 patients with a history of opiate dependency, and under toxicological surveillance assess their compliance with methadone maintenance therapy.ResultsOpiates were found in 54/250 of all hair samples, while cannabis was present in 74/250 patients, cocaine was detected in 21/250 patients, and benzodiazepines without prescription were identified in 49/250 patients. As expected, methadone was present in all 250 patients (100%). PGB without prescription was found in the hair samples of 35/250 patients (14%). Of these, 91.43% were male, 48.57% were <30 y old, and 45.71% were between ages 30 and 50 y. There were no apparent associations among PGB use, daily methadone dosage, and duration of methadone maintenance therapy. Psychiatric comorbidities were present in 25.71% of the patients abusing PGB. Anxiety (55.56%) and depression (33.33%) were the most prevalent psychiatric disorders.DiscussionMost of the patients taking PGB (57.14%) used other drugs (especially opiates) concurrently. The utility of hair analysis is explained by easy and rapid sample collection and the ability of the hair to reflect long-term drug use and incorporate drug metabolites. The findings of this study suggested that PGB has significant potential for abuse by high-risk populations such as opioid users and patients with dual diagnosis. These risks are particularly high in cases of poly-drug use and drug intake that are not in compliance with prescription guidelines.
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spelling doaj.art-7b9bfd1cbac54f378956719c261abe652022-12-22T03:10:31ZengFrontiers Media S.A.Frontiers in Psychiatry1664-06402020-02-011010.3389/fpsyt.2019.01022504039Pregabalin Abuse in Combination With Other Drugs: Monitoring Among Methadone PatientsMassimo Lancia0Angela Gambelunghe1Alessio Gili2Mauro Bacci3Kyriaki Aroni4Cristiana Gambelunghe5Forensic and Sports Medicine Section, Department of Surgery and Biomedical Science, University of Perugia, Perugia, ItalyOccupational Medicine, Respiratory Diseases and Toxicology Section, Department of Medicine, University of Perugia, Perugia, ItalyHygiene and Public Health Section, Department of Experimental Medicine, University of Perugia, Perugia, ItalyForensic and Sports Medicine Section, Department of Surgery and Biomedical Science, University of Perugia, Perugia, ItalyForensic and Sports Medicine Section, Department of Surgery and Biomedical Science, University of Perugia, Perugia, ItalyForensic and Sports Medicine Section, Department of Surgery and Biomedical Science, University of Perugia, Perugia, ItalyIntroductionIn recent years, there has been an increase in the non-medical use of psychoactive prescription drugs including pregabalin (PGB). Studies have shown that multiple drug users and patients in methadone treatment programs administered PGB at high dosages in order to achieve euphoria, reduce withdrawal symptoms, or potentiate the effects of methadone. For these reasons, accurate toxicological monitoring is required for these high-risk individuals.Materials and MethodsThe present study investigated whether PGB could be detected in the hair samples of 250 patients with a history of opiate dependency, and under toxicological surveillance assess their compliance with methadone maintenance therapy.ResultsOpiates were found in 54/250 of all hair samples, while cannabis was present in 74/250 patients, cocaine was detected in 21/250 patients, and benzodiazepines without prescription were identified in 49/250 patients. As expected, methadone was present in all 250 patients (100%). PGB without prescription was found in the hair samples of 35/250 patients (14%). Of these, 91.43% were male, 48.57% were <30 y old, and 45.71% were between ages 30 and 50 y. There were no apparent associations among PGB use, daily methadone dosage, and duration of methadone maintenance therapy. Psychiatric comorbidities were present in 25.71% of the patients abusing PGB. Anxiety (55.56%) and depression (33.33%) were the most prevalent psychiatric disorders.DiscussionMost of the patients taking PGB (57.14%) used other drugs (especially opiates) concurrently. The utility of hair analysis is explained by easy and rapid sample collection and the ability of the hair to reflect long-term drug use and incorporate drug metabolites. The findings of this study suggested that PGB has significant potential for abuse by high-risk populations such as opioid users and patients with dual diagnosis. These risks are particularly high in cases of poly-drug use and drug intake that are not in compliance with prescription guidelines.https://www.frontiersin.org/article/10.3389/fpsyt.2019.01022/fulldual diagnosishair analysispoly-drug abusepregabalinpregabalin abuse
spellingShingle Massimo Lancia
Angela Gambelunghe
Alessio Gili
Mauro Bacci
Kyriaki Aroni
Cristiana Gambelunghe
Pregabalin Abuse in Combination With Other Drugs: Monitoring Among Methadone Patients
Frontiers in Psychiatry
dual diagnosis
hair analysis
poly-drug abuse
pregabalin
pregabalin abuse
title Pregabalin Abuse in Combination With Other Drugs: Monitoring Among Methadone Patients
title_full Pregabalin Abuse in Combination With Other Drugs: Monitoring Among Methadone Patients
title_fullStr Pregabalin Abuse in Combination With Other Drugs: Monitoring Among Methadone Patients
title_full_unstemmed Pregabalin Abuse in Combination With Other Drugs: Monitoring Among Methadone Patients
title_short Pregabalin Abuse in Combination With Other Drugs: Monitoring Among Methadone Patients
title_sort pregabalin abuse in combination with other drugs monitoring among methadone patients
topic dual diagnosis
hair analysis
poly-drug abuse
pregabalin
pregabalin abuse
url https://www.frontiersin.org/article/10.3389/fpsyt.2019.01022/full
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AT maurobacci pregabalinabuseincombinationwithotherdrugsmonitoringamongmethadonepatients
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