Are medicinal herbs safe? The opinion of plant vendors from Diadema (São Paulo, southeastern Brazil)

Are medicinal herbs safe? The opinion of plant vendors from Diadema (São Paulo, southeastern Brazil)

Author Lanini, Juliana Autor UNIFESP Google Scholar
Duarte-Almeida, Joaquim Mauricio Autor UNIFESP Google Scholar
Nappo, Solange Aparecida Autor UNIFESP Google Scholar
Carlini, Elisaldo Araujo Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Abstract Medicinal plants (MP) have been used world-wide for the treatment or prevention of health conditions and due to their natural origin; they have been historically considered harmless. Semi-structured interviews were carried out with an intentional sample of twenty plant vendors in the city of Diadema to explore their knowledge and beliefs on the safety and efficacy of MP. Different levels of perceptions about the safety of MP were found, varying from completely safe to completely harmful. The majority of the interviewees declared that if herbs have an effect, they are also likely to have a side effect, depending on many factors such as dosage, concomitant use of other drugs, characteristics of the plant material and consumer related factors, specially those related to pregnant women, children and elderly people. Thirty-nine unexpected events related to 21 species of MP were reported. One case of serious gastrointestinal disease related to the consumption of a contaminated slim mixture was also described. Adverse events and other problems that result from MP are relatively uncommon, but they are almost certainly underreported and occur more often than acknowledged. This study strengthens the call for further research and educational efforts into this complex area.
Keywords medicinal herbs
plant vendors
qualitative research
safety
Language English
Sponsor Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Associação Fundo de Incentivo à Pesquisa (AFIP)
Date 2012-02-01
Published in Revista Brasileira de Farmacognosia. Sociedade Brasileira de Farmacognosia, v. 22, n. 1, p. 21-28, 2012.
ISSN 0102-695X (Sherpa/Romeo, impact factor)
Publisher Sociedade Brasileira de Farmacognosia
Extent 21-28
Origin http://dx.doi.org/10.1590/S0102-695X2011005000188
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000297789400004
SciELO ID S0102-695X2012000100004 (statistics in SciELO)
URI http://repositorio.unifesp.br/handle/11600/6950

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