title: Acute dystonic reaction in an adolescent on risperidone when a concomitant stimulant medication is discontinued.
abstract: This report describes an acute dystonic reaction that occurred after dexamphetamine was discontinued from a drug regimen that included risperidone. This is the second report that has revealed a possible rebound dystonia when a stimulant medication is withdrawn from a patient taking risperidone. We also discuss the neurophysiological hypotheses and implications for treatment.
authors.affiliation: Department of Psychiatry, Dalhousie University, Halifax, Nova Scotia, Canada.
authors.forename: Aaron
authors.initials: A
authors.lastname: Keshen
authors.forename: Carlo
authors.initials: C
authors.lastname: Carandang
mesh_terms: D000293:Adolescent; D014150:Antipsychotic Agents / Q000009:adverse effects*; D001289:Attention Deficit Disorder with Hyperactivity / Q000188:drug therapy; D000697:Central Nervous System Stimulants / Q000008:administration & dosage; D003913:Dextroamphetamine / Q000008:administration & dosage; D004334:Drug Administration Schedule; D004421:Dystonia / Q000139:chemically induced*; D006801:Humans; D008297:Male; D018967:Risperidone / Q000009:adverse effects*
chemical_list: D014150:Antipsychotic Agents; D000697:Central Nervous System Stimulants; D018967:Risperidone; D003913:Dextroamphetamine