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Prescription Stimulants in College and Medical Students: A Narrative Review of Misuse, Cognitive Impact, and Adverse Effects. PSYCHIATRY INTERNATIONAL 2022. [DOI: 10.3390/psychiatryint3030018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Stimulants are effective in treating attention-deficit/hyperactivity disorder (ADHD). Psychiatrist Charles Bradley first made this discovery in 1937 when he found that children treated with amphetamines showed improvements in school performance and behavior. Between 1995 and 2008, stimulants to treat ADHD increased six-fold among American adults and adolescents at an annual rate of 6.5%. Stimulants without a prescription, known as nonmedical use or misuse, have also increased. The highest rates of nonmedical prescription drug misuse in the United States are seen most notably in young adults between 18 and 25 years, based on data from the Substance Abuse and Mental Health Services Administration in 2021. Aside from undergraduate students, nonmedical prescription stimulant use is prevalent among medical students worldwide. A recent literature review reported the utilization of stimulants without a prescription in 970 out of 11,029 medical students. The percentages of medical students across the country misusing stimulants varied from 5.2% to 47.4%. Academic enhancement, reported in 50% to 89% of college students with stimulant misuse, is the most common reason for nonmedical stimulant use. With the increasing use of stimulants among adolescents and adults, it is unclear what long-term outcomes will be since little data are available that describe differences in how side effects are experienced for prescribed and non-prescribed users. The present narrative review focuses on these adverse effects in this population and the reasonings behind misuse and nonmedical use.
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Krinzinger H, Hall CL, Groom MJ, Ansari MT, Banaschewski T, Buitelaar JK, Carucci S, Coghill D, Danckaerts M, Dittmann RW, Falissard B, Garas P, Inglis SK, Kovshoff H, Kochhar P, McCarthy S, Nagy P, Neubert A, Roberts S, Sayal K, Sonuga-Barke E, Wong ICK, Xia J, Zuddas A, Hollis C, Konrad K, Liddle EB. Neurological and psychiatric adverse effects of long-term methylphenidate treatment in ADHD: A map of the current evidence. Neurosci Biobehav Rev 2019; 107:945-968. [PMID: 31545988 DOI: 10.1016/j.neubiorev.2019.09.023] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 09/09/2019] [Accepted: 09/13/2019] [Indexed: 10/26/2022]
Abstract
Methylphenidate (MPH), the most common medication for children with Attention Deficit/Hyperactivity Disorder (ADHD) in many countries, is often prescribed for long periods of time. Any long-term psychotropic treatment in childhood raises concerns about possible adverse neurological and psychiatric outcomes. We aimed to map current evidence regarding neurological and psychiatric outcomes, adverse or beneficial, of long-term MPH (> 1 year) treatment in ADHD. We coded studies using a "traffic light" system: Green: safe/favours MPH; Amber: warrants caution; Red: not safe/not well-tolerated. Un-categorisable study findings were coded as "Unclear". Although some evidence suggests an elevated risk of psychosis and tics, case reports describe remission on discontinuation. Several studies suggest that long-term MPH may reduce depression and suicide in ADHD. Evidence suggests caution in specific groups including pre-school children, those with tics, and adolescents at risk for substance misuse. We identified a need for more studies that make use of large longitudinal databases, focus on specific neuropsychiatric outcomes, and compare outcomes from long-term MPH treatment with outcomes following shorter or no pharmacological intervention.
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Affiliation(s)
- Helga Krinzinger
- Section Child Neuropsychology, Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital, RWTH Aachen, Germany
| | - Charlotte L Hall
- Division of Psychiatry & Applied Psychology, School of Medicine, Institute of Mental Health, University of Nottingham, UK
| | - Madeleine J Groom
- Division of Psychiatry & Applied Psychology, School of Medicine, Institute of Mental Health, University of Nottingham, UK
| | - Mohammed T Ansari
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Canada
| | - Tobias Banaschewski
- Department of Child & Adolescent Psychiatry and Psychotherapy, Medical Faculty Mannheim, Central Institute of Mental Health, University of Heidelberg, Mannheim, Germany
| | - Jan K Buitelaar
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Centre, & Karakter Child and Adolescent Psychiatry University Centre, Nijmegen, the Netherlands
| | - Sara Carucci
- Child and Adolescent Neuropsychiatry Unit, Department of Biomedical Science, University of Cagliari & "A. Cao" Pediatric Hospital, Brotzu Hospital Trust, Cagliari, Italy
| | - David Coghill
- Departments of Paediatrics and Psychiatry, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Australia; Murdoch Children's Research Institute, Melbourne, Australia; Division of Neuroscience, School of Medicine, University of Dundee, Dundee, UK
| | - Marina Danckaerts
- Department of Child and Adolescent Psychiatry, University Psychiatric Center, Leuven, KU, Belgium; Department of Neurosciences, University Psychiatric Center, Leuven, KU, Belgium
| | - Ralf W Dittmann
- Paediatric Psychopharmacology, Department of Child & Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Bruno Falissard
- University Paris-Sud, Univ. Paris-Descartes, AP-HP, INSERM U1178, Paris, France
| | - Peter Garas
- Semmelweis University, Károly Rácz School of PhD Studies, Mental Health Sciences Phd School, Budapest, Hungary
| | - Sarah K Inglis
- Tayside Clinical Trials Unit, University of Dundee, Dundee, UK
| | - Hanna Kovshoff
- School of Psychology, University of Southampton, Southampton, UK
| | - Puja Kochhar
- Division of Psychiatry & Applied Psychology, School of Medicine, Institute of Mental Health, University of Nottingham, UK
| | | | - Peter Nagy
- Vadaskert Child and Adolescent Psychiatric Hospital, Budapest, Hungary
| | - Antje Neubert
- Department of Paediatrics and Adolescents Medicine, University Hospital Erlangen, Erlangen, Germany
| | | | - Kapil Sayal
- Division of Psychiatry & Applied Psychology, School of Medicine, Institute of Mental Health, University of Nottingham, UK
| | - Edmund Sonuga-Barke
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry, King's College London, London, UK; Department of Experimental Clinical & Health Psychology, Ghent University, Ghent, Belgium
| | - Ian C K Wong
- Centre for Paediatric Pharmacy Research, Research Department of Practice and Policy, UCL School of Pharmacy, London, UK; Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | - Jun Xia
- The Nottingham Ningbo GRADE Center, Nottingham China Health Institute, The University of Nottingham Ningbo, China
| | - Alessandro Zuddas
- Child and Adolescent Neuropsychiatry Unit, Department of Biomedical Science, University of Cagliari & "A. Cao" Pediatric Hospital, Brotzu Hospital Trust, Cagliari, Italy
| | - Chris Hollis
- Division of Psychiatry & Applied Psychology, School of Medicine, Institute of Mental Health, University of Nottingham, UK; National Institute of Health Research (NIHR) MindTech MedTech Cooperative, Nottingham, UK; NIHR Nottingham Biomedical Research Centre, Nottingham, UK
| | - Kerstin Konrad
- Section Child Neuropsychology, Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital, RWTH Aachen, Germany; JARA-BRAIN Institute II, Molecular Neuroscience and Neuroimaging, Forschungszentrum Jülich GmbH and RWTH Aachen University, Germany
| | - Elizabeth B Liddle
- Division of Psychiatry & Applied Psychology, School of Medicine, Institute of Mental Health, University of Nottingham, UK.
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