Analysis of Adherence to Fluoxetine Treatment through its Plasma Concentration



Título del documento: Analysis of Adherence to Fluoxetine Treatment through its Plasma Concentration
Revista: Brazilian Journal of Pharmaceutical Sciences
Base de datos: PERIÓDICA
Número de sistema: 000452235
ISSN: 1984-8250
Autores: 1
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Instituciones: 1Universidade Feevale, Instituto de Ciencias da Saude, Novo Hamburgo, Rio Grande do Sul. Brasil
Año:
Volumen: 58
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés Depression plays an important role in non-adherence to medical recommendations. Fluoxetine is a first line of depression treatment. This study aimed to evaluate adherence to drug therapy in fluoxetine users by different methods. A cross-section study was conducted with 53 depressed patients on fluoxetine for at least six months. Drug therapy adherence was assessed by validated questionnaires [Brief Medication Questionnaire (BMQ) and Morisky-Green test (MG)] and by the blood concentration of fluoxetine and its active metabolite norfluoxetine. Blood samples were taken before the daily first dose of fluoxetine. The plasmatic concentration of fluoxetine and norfluoxetine indicated that 58.5% volunteers were within the recommended therapeutic range and thus considered adherent to drug therapy. However, questionnaires indicated a non-adherent majority: 41.5% patients had a high degree of adherence in MG and only 13.2% were adherent to pharmacological treatment in BMQ. Most fluoxetine users showed a plasma concentration of fluoxetine and norfluoxetine within the therapeutic range, despite the low adherence to the drug therapy evaluated by the questionnaires. Thus, we suggest that plasma levels of fluoxetine and norfluoxetine could be used as the main method to check adherence to treatment
Disciplinas: Medicina
Palabras clave: Psiquiatría,
Farmacología,
Depresión,
Fluoxetina,
Norfluoxetina,
Adherencia al tratamiento,
Concentración plasmática
Keyword: Psychiatry,
Pharmacology,
Depression,
Fluoxetine,
Norfluoxetine,
Treatment adherence,
Plasma concentration
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