collection
https://read.qxmd.com/read/31832260/high-dose-clozapine-withdrawal-a-case-report-and-timeline-of-a-single-potential-withdrawal-seizure
#1
Megan K Skelly, Tammie Lee Demler, Claudia Lee
Clozapine, a second-generation antipsychotic (SGA), is known for its superior efficacy in the treatment of refractory schizophrenia. Clozapine's hallmark side effects are well-known, including, but not limited to, drug-induced seizures associated with daily goal doses greater than 600mg and rapid dose escalation, which can also contribute to significant risk of orthostatic hypotension, bradycardia, and syncope. However, less well-known is the potential withdrawal that can occur from its rapid discontinuation...
2019: Innovations in Clinical Neuroscience
https://read.qxmd.com/read/31530315/closure-beyond-clozapine-successfully-averting-rebound-symptoms-in-a-patient-with-schizoaffective-disorder-and-agranulocytosis
#2
JOURNAL ARTICLE
Alastair Green, Thomas Stephenson, Eromona Whiskey, Sukhi S Shergill
SUMMARY: 'Rebound' or 'withdrawal' symptoms are frequently observed after a sudden discontinuation of clozapine. We describe a patient with treatment-resistant schizoaffective disorder who developed agranulocytosis on clozapine but was successfully switched to treatment with olanzapine with no deterioration in her condition. We put forward three possible theories which may have accounted for the lack of rebound symptoms in this patient: the pharmacological profile of olanzapine, the anticholinergic effects of hyoscine hydrobromide, and the possibility that this patient may not be treatment-resistant and so have a reduced risk of rebound psychosis due to displaying a different pathophysiology...
May 22, 2019: BJPsych Open
https://read.qxmd.com/read/29230342/the-treatment-of-clozapine-withdrawal-delirium-with-electroconvulsive-therapy
#3
JOURNAL ARTICLE
Anish Modak, Arne Ã…hlin
Clozapine, a commonly used atypical antipsychotic, can precipitate a severe withdrawal syndrome. In this report, we describe a case of delirium with catatonic features emerging after the immediate cessation of clozapine subsequent to concerns of developing neuroleptic malignant syndrome. After multiple treatments were found to be inefficacious, electroconvulsive therapy (ECT) was initiated, resulting in significant improvement. A literature search revealed six previous cases of clozapine-withdrawal syndromes of varied symptomatology treated with ECT...
2017: Case Reports in Psychiatry
https://read.qxmd.com/read/23753931/serotonin-syndrome-associated-with-clozapine-withdrawal
#4
JOURNAL ARTICLE
Elizabeth Stevenson, Frank Schembri, Deborah M Green, Joseph D Burns
IMPORTANCE: We describe a case of serotonin syndrome secondary to clozapine withdrawal and concomitant use of citalopram hydrobromide, a phenomenon that has been rarely reported. OBSERVATIONS: This is a case report of a 47-year-old woman admitted to an academic medical center intensive care unit with coma, hypersalivation, hyperreflexia, and stimulus-induced clonus. The patient received a diagnosis of serotonin syndrome attributed to abrupt clozapine withdrawal with concomitant use of citalopram...
August 2013: JAMA Neurology
https://read.qxmd.com/read/9228890/clozapine-withdrawal-resulting-in-delirium-with-psychosis-a-report-of-three-cases
#5
REVIEW
J K Stanilla, J de Leon, G M Simpson
BACKGROUND: Withdrawal symptoms for typical antipsychotics are generally mild, self-limited and do not include development of psychotic symptoms. In contrast, withdrawal symptoms for clozapine can be severe with rapid onset of agitation, abnormal movements, and psychotic symptoms. Different pathophysiologic etiologies have been suggested for these severe symptoms, including dopaminergic supersensitivity and rebound. METHOD: Three case reports of clozapine withdrawal symptoms are presented...
June 1997: Journal of Clinical Psychiatry
https://read.qxmd.com/read/8938913/cholinergic-rebound-and-rapid-onset-psychosis-following-abrupt-clozapine-withdrawal
#6
RANDOMIZED CONTROLLED TRIAL
T M Shiovitz, T L Welke, P D Tigel, R Anand, R D Hartman, J J Sramek, N M Kurtz, N R Cutler
Following the conduct of a 28-day inpatient bioequivalence study of clozapine in schizophrenia patients, withdrawal effects after abrupt discontinuation from clozapine were assessed. Thirty patients who met DSM-III-R criteria for schizophrenia, residual type, or schizophrenia in remission were enrolled in the study. Patients were evaluated for symptoms of withdrawal effects for 7 days after clozapine 200 mg/day was abruptly withdrawn. Of 28 patients who completed the study, 11 had no withdrawal symptoms; 12 had mild withdrawal adverse events of agitation, headache, or nausea; four patients experienced moderate withdrawal adverse events of nausea, vomiting, or diarrhea; and one patient experienced a rapid-onset psychotic episode requiring hospitalization...
1996: Schizophrenia Bulletin
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