Related Experiment Video
Updated: Jun 17, 2026

Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
Published on: November 21, 2013
Olanzapine induced tardive dystonia
1Department of Psychiatry, G. B. Pant Hospital and Maulana Azad Medical College, New Delhi, India.
Atypical antipsychotics like olanzapine may still cause tardive dystonia (TD), a movement disorder. This case highlights the risk of TD even with newer schizophrenia treatments.
Area of Science:
- Psychopharmacology
- Neurology
- Movement Disorders
Background:
- Atypical antipsychotics were developed to treat schizophrenia with fewer side effects than typical antipsychotics.
- These newer agents were expected to have a lower risk of extrapyramidal symptoms, including tardive movements.
- Olanzapine, a second-generation antipsychotic, acts on serotonin and dopamine receptors.
Purpose of the Study:
- To report a case of tardive dystonia (TD) in a patient treated with olanzapine.
- To contribute to the limited literature on olanzapine-induced TD.
Main Methods:
- Case report of a male patient diagnosed with schizophrenia.
- Clinical observation of adverse effects during olanzapine treatment.
Main Results:
- The patient developed tardive dystonia (TD) after 15 months of olanzapine therapy.
- This case adds to the few documented instances of olanzapine-induced TD.
Conclusions:
- Olanzapine, despite being an atypical antipsychotic, can induce tardive dystonia (TD).
- Clinicians should remain vigilant for movement disorders in patients on olanzapine.
- Further research is needed to understand the risk factors and mechanisms of olanzapine-induced TD.
Related Concept Videos
Antipsychotic Drugs: Typical and Atypical Agents
Antipsychotic Drugs: Therapeutic Uses and Side Effects
Despite these side effects, antipsychotics are used therapeutically for various purposes, including managing schizophrenia, preventing nausea and vomiting, curbing...
Parkinson's Disease: Treatment
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of its...
Psychosis: Goals of Pharmacotherapy
Antiepileptic Drugs: Potassium Channel Activators
Ezogabine has gained approval as an adjunctive treatment...
Alterations in Muscle Tone lll

