Potential interactions of central nervous system drugs used in the elderly population

OBJECTIVE: To describe the use of CNS drugs and to identify the most frequently observed potential drug interactions in the elderly living in Southern Brazil. METHODS: A population-based, transversal and observational study was carried out during 2006-2007. Four hundred and eighty elderly individual...

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Veröffentlicht in:Brazilian Journal of Pharmaceutical Sciences 2009-06, Vol.45 (2), p.227-234
Hauptverfasser: Morrone, Fernanda Bueno, Schroeter, Guilherme, Petitembert, Alessandra P., Faggiani, Fabiana T., De Carli, Geraldo Atillio
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Sprache:eng
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Zusammenfassung:OBJECTIVE: To describe the use of CNS drugs and to identify the most frequently observed potential drug interactions in the elderly living in Southern Brazil. METHODS: A population-based, transversal and observational study was carried out during 2006-2007. Four hundred and eighty elderly individuals of both genders were randomly recruited and interviewed. A validated pharmacotherapeutic questionnaire and the Micromedex® Healthcare Series were utilized to analyze potential drug interactions. A severity rating scale employing the categories of "mild", "moderate" and "severe" was used to describe the interactions. RESULTS: A population of elderly living in Southern Brazil was interviewed and 98 reported using CNS drugs, 74.5% female and 25.5% male. Out of these patients, 32.0% reported severe or moderate pharmacological interactions related to the use of other drugs. Alprazolam and imipramine were reported to potentially interact with tobacco. Twenty potential moderate drug/ethanol interactions were found. The potential drug/caffeine interactions were classified as mild on the severity scale. CONCLUSION: Elderly being prescribed drugs that act on the CNS should be closely monitored, and furthermore, should be warned against potential drug-drug, drug-ethanol, and drug-tobacco interactions. OBJETIVO: Descrever o uso de medicamentos que atuam no sistema nervoso central (SNC) e identificar as possíveis interações mais frequentes com esses medicamentos em idosos do sul do Brasil. MÉTODOS: Estudo de base populacional, transversal e observacional, realizado durante 2006-2007. Quatrocentos e oitenta idosos de ambos os sexos foram randomizados e entrevistados. Foram utilizados um questionário farmacoterapêutico validado e o programa Micromedex® Healthcare Series para analisar as potenciais interações com os medicamentos. Foi utilizada uma escala para descrever a gravidade das interações nas categorias de "leve", "moderada" e "grave". RESULTADOS: A população idosa, moradora do sul do Brasil, que utilizava medicamentos para o SNC, era formada por 98 pacientes, 75,5% mulheres e 25,5% homens. Destes pacientes, 32,0% apresentaram interações farmacológicas graves ou moderadas relacionadas com a utilização de outros medicamentos. Alprazolam e Imipramina, usados pela população, apresentaram riscos de potenciais interações com tabaco. Foram encontradas vinte potenciais interações moderadas medicamento/etanol. As potenciais interações medicamento/cafeína foram classificadas co
ISSN:1984-8250
2175-9790
1984-8250
2175-9790
DOI:10.1590/S1984-82502009000200006