Abstract
Background: Antidepressants and antipsychotics are widely prescribed drugs for the treatment of mental diseases. Therapeutic drug monitoring (TDM) is recommended for patients taking these drugs to ensure pharmaceutical efficacy, medication compliance and prevent toxicity.
Objective: An ultra-high performance liquid chromatography/tandem-mass spectrometry (UPLC-MS/ MS) method was developed for simultaneous determination of two Antidepressants-Fluoxetine (FLU) and Escitalopram (ESC), and two antipsychotics-risperidone (RIS) and aripiprazole (ARI), in human plasma. Methods: The sample was processed by simple protein precipitation and the targeted analytes were separated on a C18 column by gradient elution with a mobile phase containing 0.1% formic acid (v/v) and acetonitrile. All the analytes were qualitative and quantitative measured by electrospray ionization source with Multiple Reaction Monitoring (MRM) in positive ion mode. A total of 56 plasma samples were obtained from out- or in-patients who were taking the cited four drugs for further analysis. Results: The calibration curves for FLU, ESC, RIS and ARI were linear in the range of 45-1800, 4-320, 2-200 and 50-1800 ng/mL, respectively. The entire analytical time for the analytes was 7.0 min for each run and the extraction efficiency was more than 90%. The sample was stable within various storage conditions. The trough concentrations in patients were measured with the validated method. Conclusion: The developed method was successfully used for simultaneous determination of FLU, ESC, RIS and ARI in the plasma of the patients, which provides effective technical support for routine TDM of these four drugs and is of great clinic value for individual therapy.Keywords: Antipsychotics, antidepressants, UPLC-MS/MS, determination, human plasma, Antidepressants-Fluoxetine (FLU).
Graphical Abstract
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