Pharmacogenomics of CYP2D6, CYP2C19, CYP2C9, and Clinical Determinants of Fluoxetine-Norfluoxetine Pharmacokinetics in Real-World Clinical Conditions.

ABSTRACT: Background: Fluoxetine, a widely prescribed selective serotonin reuptake inhibitor, exhibits significant interindividual variability in pharmacokinetics, largely attributed to pharmacogenomic factors. Objectives: The study aimed to evaluate the impact of pharmacogenetics and clinical determinants on the dose-normalized fluoxetine/norfluoxetine metabolic ratio in patients undergoing fluoxetine therapy in routine clinical settings. Methods: Genotypes for CYP2D6, CYP2C9, and CYP2C19 genotypes were determined in 47 patients receiving fluoxetine therapy using TaqMan^® assays. Steady-state trough plasma concentrations of fluoxetine and norfluoxetine were measured using validated high-performance liquid chromatography methods. Log₁₀-t

SUBMITTER: de la Cruz CG 

PROVIDER: S-EPMC12845259 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature