Evidence suggests that reversible withdrawal dyskinesia could represent a prodrome to irreversible TD. Therefore, keeping a watchful eye for these movements during the exam, along with specific inquiry about withdrawal dyskinesias while taking a history at every follow-up visit, is important because doing so can:
• inform the clinician about partial compliance or noncompliance to these medications, which could lead to treatment failure
• help prevent development of irreversible TD syndrome.
Ms. X’s case reminds clinicians (1) to be aware of this unexpected side effect occurring even with second-generation antipsychotics and (2) that they should consider EPS in patients while they are discontinuing their drugs. Furthermore, it is important for clinical and medicolegal reasons to inform our patients that different forms of dyskinesias can be potential side effects of antipsychotics.
Bottom Line
Dyskinesias can result from withdrawal of both typical and atypical antipsychotics, and usually are self-limited. Withdrawal dyskinesia may represent a prodrome to tardive dyskinesia; early recognition may aid in preventing development of persistent tardive dyskinesia.
Related Resources
• Abnormal Involuntary Movement Scale. http://www.cqaimh.org/pdf/toolaims.pdf.
• Goldberg JF, Ernst CL. Managing the side effects of psychotropic medications. Arlington, VA: American Psychiatric Publishing, Inc; 2012.
• Tarsay D. Tardive dyskinesia: prevention and treatment. http:// www.uptodate.com/contents/tardive-dyskinesia-prevention-and-treatment?topicKey=NEURO%2F4908&elapsedTimeMs=3 &view=print&displayedView=full#.
Drug Brand Names
Amantadine • Symmetrel
Aripiprazole • Abilify
Benztropine • Cogentin
Carvedilol • Coreg
Citalopram • Celexa
Clonazepam • Klonopin
Clozapine • Clozaril
Divalproex sodium • Depakote
Donepezil • Aricept
Enalapril • Vasotec
Haloperidol • Haldol
Lamotrigine • Lamictal
Levetiracetam • Keppra
Levothyroxine • Levoxyl, Synthroid
Metformin • Glucophage
Methylphenidate • Ritalin
Olanzapine • Zyprexa
Omeprazole • Prilosec
Pravastatin • Pravachol
Quetiapine • Seroquel
Risperidone • Risperdal
Tetrabenazine • Xenazine
Trazodone • Desyrel, Oleptro
Ziprasidone • Geodon
Zonisamide • Zonegran
Disclosures
The authors report no financial relationships with any company whose products are mentioned in this article or with manufacturers of competing products.