Evaluation of Antipsychotic Drugs' Stability in Oral Fluid Samples

Overview

Journal Molecules

Publisher MDPI

Specialty Biology

Date 2023 Mar 11

PMID 36903275

Authors

Carina Gameiro

Joana Goncalves

Sofia Soares

Tiago Rosado

Andre R T S Araujo

Luis A Passarinha

Mario Barroso

Eugenia Gallardo

Affiliations

Soon will be listed here.

Abstract

Antipsychotics have narrow therapeutic windows, and their monitoring in biological fluids is therefore important; consequently, stability in those fluids must be investigated during method development and validation. This work evaluates the stability of chlorpromazine, levomepromazine, cyamemazine, clozapine, haloperidol, and quetiapine in oral fluid (OF) samples, using the dried saliva spots (DSS) sampling approach and gas chromatography coupled to tandem mass spectrometry. Since many parameters can influence the stability of the target analytes, design of experiments was adopted to check the crucial factors that affect that stability in a multivariate fashion. The studied parameters were the presence of preservatives at different concentrations, temperature, light, and time. It was possible to observe that antipsychotic stability improved when OF samples in DSS were stored at 4 °C, with a low ascorbic acid concentration, and in the absence of light. With these conditions, chlorpromazine and quetiapine were stable for 14 days, clozapine and haloperidol were stable for 28 days, levomepromazine remained stable for 44 days, and cyamemazine was stable for the entire monitored period (146 days). This is the first study that evaluates the stability of these antipsychotics in OF samples after application to DSS cards.

Citing Articles

Therapeutic Drug Monitoring in Psychiatry: Enhancing Treatment Precision and Patient Outcomes.

Biso L, Aringhieri S, Carli M, Scarselli M, Longoni B Pharmaceuticals (Basel). 2024; 17(5).

PMID: 38794212 PMC: 11124530. DOI: 10.3390/ph17050642.

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