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Updated: Jan 4, 2026

Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
Published on: November 21, 2013
Substance-induced Psychosis in Youth
David Beckmann1, Kelsey Leigh Lowman2, Jessica Nargiso3
1Addiction Recovery Management Service, First Episode and Early Psychosis Program, Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street WACC 812, Boston, MA 02114, USA.
Abstract:
Youth experiencing psychosis also frequently misuse substances, making it clinically challenging to differentiate substance-induced psychosis (SIP) from a primary psychotic disorder (PPD), which has important implications for management and prognosis. This article presents practical considerations related to differentiating SIP from PPD, including information on substances associated with symptoms of psychosis. Recommendations for management of SIP are also reviewed, including screening for and treating comorbid substance use disorders and using evidence-based medication and psychosocial interventions.
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