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papers

Prescription stimulant use and hospitalization for psychosis or mania: a population-based study

Published: December 1, 2015
Category: Papers
Authors: Cressman AM, Gomes T, Huang A, Juurlink DN, Kurdyak PA, Macdonald EM, Mamdani MM, Paterson MJ
Country: Canada
Language: null
Type: Population Health
Settings: Hospital, PCP

J Clin Psychopharmacol 35:667-671.

Institute for Clinical Evaluative Sciences, Toronto, ON, Canada; University of Toronto, Toronto, ON, Canada; St Michael’s Hospital, Toronto, ON, Canada

Small studies suggest that prescription stimulants can precipitate psychosis and mania. We conducted a population-based case-crossover study to examine whether hospitalization for psychosis or mania was associated with initiation of stimulant therapy. Between October 1, 1999 and March 31, 2013, we studied 12,856 young people who received a stimulant prescription and were subsequently hospitalized for psychosis or mania. Of these, 183 commenced treatment during 1 of 2 prespecified 60-day intervals (defined as the “risk interval” and “control interval,” respectively) prior to admission. We found that stimulant initiation was associated with an increased risk of hospitalization for psychosis or mania in the subsequent 60 days (odds ratio, 1.86; 95% confidence interval, 1.39-2.56). The risk was marginally higher in patients treated with antipsychotic drugs (odds ratio, 2.06; 95% confidence interval, 1.38-3.28), but remained in patients with no such history (odds ratio, 1.66; 95% confidence interval, 1.09-2.66). One third of subjects received another stimulant prescription after hospital discharge. Of these, 45% were readmitted with psychosis or mania shortly thereafter. We conclude that initiation of prescription stimulants is associated with an increased risk of hospitalization for psychosis or mania. Resumption of therapy is common, which may reflect a lack of awareness of the potential causative role of these drugs.

PMID: 26485338

Canada,High Risk,Predictive Risk Models,Medications,Prescription Drug Use and Expenditures,Young Adult,Drug Prescription/standards,Gender

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