FIELD: medicine.
SUBSTANCE: invention refers to medicine, namely to pharmacogenetics, clinical pharmacology, psychiatry, addictology, and can be used for selecting a dose of antipsychotic drug fluphenazine. That is ensured by genotyping using polymorphic markers of CYP1A2 genes, based on the results of which a parameter P is calculated, which is an estimate value of the rate change manifestation biotransformation of fluphenazine, depending on the state of genetic polymorphism in each specific patient. If parameter P is more than 50, (speed deviation biotransformation of fluphenazine by 50 % and higher) is recommended to replace the drug. At parameter P value in interval (-50;0) (speed deceleration biotransformation of fluphenazine less than by 50 %) recommendation is given on dose reduction. At parameter P value in interval (0;50) (speed acceleration biotransformation of fluphenazine recommendation for dose increase is given less than by 50 %).
EFFECT: method has high accuracy, information content and objectivity.
1 cl, 1 tbl
