Lead: Risk of Incident Psychosis and Mania With Prescription Amphetamines

Risk of Incident Psychosis and Mania With Prescription Amphetamines

The American Journal of Psychiatry

This case-control study used electronic health records to examine the impact of dose levels of prescription amphetamines on the risk of incident psychosis and mania with prescription amphetamines. Among 1,374 case subjects and 2,748 control subjects, the odds of psychosis and mania were increased for individuals with past-month prescription amphetamine use compared with no use. A dose-response relationship was observed; high doses of amphetamines (>30 mg dextroamphetamine equivalents) were associated with 5.28-fold increased odds of psychosis or mania. Past-month methylphenidate use was not associated with increased odds of psychosis or mania compared with no use. Caution should be exercised when prescribing high doses of amphetamines, with regular screening for symptoms of psychosis or mania.

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