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Case Studies | Psychiatry | India | Volume 12 Issue 12, December 2023

A Case Report on Antipsychotic-Induced Rabbit Syndrome

Shabanam N. Sheikh

Abstract: Background: Antipsychotics can cause rhythmic mouth and lip motions that resemble a rabbit chewing, which is known as rabbit syndrome (RS). The tongue is not involved in the action, which consists of a vertical motion solely at a frequency of roughly 5 Hz. The risk of RS owing to exposure to more recent atypical antipsychotics is unclear, despite the fact that long-term exposure to conventional antipsychotics has been conclusively linked to the disease. Case Presentation: A 45-year-old female patient receiving clozapine medication for paranoid schizophrenia for the past 23 years and Rabbit Syndrome since the last nine months. (Long-term exposure to typical antipsychotics has clearly been associated with RS, but little is known of the risk of RS due to exposure to newer atypical antipsychotics.) He was admitted two months ago to the "Acharya Vinoba Bhave Rural Hospital Sawangi (M), Wardha," Maharashtra, with the primary complaints of rigidity, bradykinesia, and facial tremor, fine quick pouting and puckering of the lips. Rigidity, bradykinesia, and facial tremor were discovered during a physical examination. The patient had completed a number of tests, including a complete blood count, which revealed a lowered Hb%. The nursing care included monitoring all vital signs, checking and recording intake and output, and giving out anticholinergic medications in accordance with prescriptions. Conclusion: The patient was admitted to AVBRH's mental ward with the primary complaint of immediate therapy was initiated by the psychiatric team, and the patient's condition is presently satisfactory.

Keywords: Rabbit syndrome, Antipsychotics, Involuntary movements, Chewing movements

Edition: Volume 12 Issue 12, December 2023,

Pages: 555 - 558