Switch medication from Clozapine to Rest AP.
Stop Clozapine
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Day 1: Decrease daily dose with 25 mg every 2 days
Start Rest AP
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Week 1: approx. 25% of target dose
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Week 2: approx. 50% of target dose
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Week 3: approx. 75% of target dose
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Week 4: target dose
More information
- Clozapine is generally considered to be more effective than other antipsychotic drugs. Clozapine is often used in treatment-resistant schizophrenia (poor treatment response to 2 or more antipsychotic drugs). So a switch from clozapine to another antipsychotic drug could cause problems regarding effectiveness.[1][2][3]
- During this switch you could monitor ECG, especially in patients prone to QT-conduction problems.
- There is a possibility of QT interval prolongation.[4]
— Clozapine
— Rest AP
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↑ McEvoy J P et al., Effectiveness of clozapine versus olanzapine, quetiapine, and risperidone in patients with chronic schizophrenia who did not respond to prior atypical antipsychotic treatment. Am J Psychiatry. 2006;163:600–610.
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↑ Lewis S W et al., Randomized Controlled Trial of Effect of Prescription of Clozapine Versus Other Second-Generation Antipsychotic Drugs in Resistant Schizophrenia. Schizophrenia Bulletin vol.32 no.4 pp.715–723,2006.
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↑ Agid O, Kapur S, Remington G, Emerging drugs for schizophrenia. Expert Opin Emerg Drugs. 2008 Sep;13(3):479-95.
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↑ Stöllberger C, Huber JO, Finsterer J, Antipsychotic drugs and QT prolongation. Int Clin Psychopharmacol. 2005 Sep;20(5):243-51.
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