Clozapine-induced rabbit syndrome: a case report

Many psychoanalysts have offered innovative ideas on the treatment of schizophrenic patients, but none on postpsychotic depression. The author presents a psychoanalytic conceptualization of postpsychotic depression based on Kohut's ideas regarding the development of normal and pathological grandiosity. The main premise is that postpsychotic depression stems from the loss of psychotic grandiosity, and that it is the psychological reaction to the loss of omnipotent identity whose role it is to provide an alternative reality. Through near-experience connectedness, clinicians and practitioners in the psychiatric rehabilitation field can facilitate an empathic milieu in which new mental constructs can be established and new behavioral skills can be learned.

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A Systematic Review of Oral Vertical Dyskinesia (“Rabbit” Syndrome)

Rissardo,

Kherajani,

Vora

et al. 2024

Medicina

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Background and Objectives: Vertical rhythmic dyskinetic movements that are primarily drug-induced and affect solely the jaw, mouth, and lips without involving the tongue have been historically described as “rabbit” syndrome (RS). Evidence on the unique features and implications of this disorder remains limited. This literature review aims to evaluate the clinical–epidemiological profile, pathological mechanisms, and management of this movement disorder. Materials and Methods: Two reviewers identified and assessed relevant reports in six databases without language restriction published between 1972 and 2024. Results: A total of 85 articles containing 146 cases of RS were found. The mean frequency of RS among adults in psychiatric hospitals was 1.2% (range 0–4.4%). The mean age of affected patients was 49.2 (SD: 17.5), and 63.6% were females. Schizophrenia was the most frequent comorbidity found in 47.6%, followed by bipolar disorder (17.8%), major depressive disorder (10.3%), and obsessive–compulsive disorder (3.7%). Five cases were idiopathic. The most common medications associated with RS were haloperidol (17%), risperidone (14%), aripiprazole (7%), trifluoperazine (5%), and sulpiride (5%). The mean duration of pharmacotherapy before RS was 21.4 weeks (SD: 20.6). RS occurred in association with drug-induced parkinsonism (DIP) in 27.4% and with tardive dyskinesia (TD) in 8.2% of cases. Antipsychotic modification and/or anticholinergic drugs resulted in full or partial recovery in nearly all reported cases in which they were prescribed. Conclusions: RS occurs as a distinct drug-induced syndrome associated primarily but not exclusively with antipsychotics. Distinguishing RS from TD is important because the treatment options for the two disorders are quite different. By contrast, RS may be part of a spectrum of symptoms of DIP with similar course, treatment outcomes, and pathophysiology.

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Clozapine-induced rabbit syndrome: a case report

Cited by 3 publications

References 18 publications

The other side of “madness”: frequencies of positive and ambivalent attitudes towards prominent positive symptoms in psychosis

The other side of “madness”: frequencies of positive and ambivalent attitudes towards prominent positive symptoms in psychosis

Self psychology conceptualization of postpsychotic depression and recovery among paranoid schizophrenic patients

A Systematic Review of Oral Vertical Dyskinesia (“Rabbit” Syndrome)

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