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Homozygous mutation at cytochrome P4502D6 in an individual with schizophrenia: Implications for antipsychotic drugs, side effects and compliance
Published online by Cambridge University Press: 13 June 2014
Abstract
We report the case of a patient with schizophrenia who has suffered severe side effects with many different antipsychotics. She is poorly compliant with treatment probably because of her experiences with medication. We determined her genotype at the CYP2D6 gene that codes for an enzyme principally involved in the metabolism of many antipsychotics. She was homozygous for the ‘B’ mutation, the most frequent of several known mutations. She therefore has no functioning CYP2D6 enzyme in common with 5%-10% of the population. This may explain why she is sensitive to quite moderate doses of antipsychotic medication, and more rational prescribing may lead to fewer side effects and increased compliance.
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- Copyright © Cambridge University Press 1997
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