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Presence of p-synephrine in teas commercialized in Porto Alegre (RS/Brazil) / Presença de p-sinefrina em chás comercializados em Porto Alegre (RS / Brasil)
Arbo, Marcelo Dutra; Braun, Paulini; Leal, Mirna Bainy; Larentis, Elisa Raup; Aboy, Ana Lucia; Bulcão, Rachel Picada; Garcia, Solange Cristina; Limberger, Renata Pereira.
  • Arbo, Marcelo Dutra; Federal University of Rio Grande do Sul. Faculty of Pharmacy. Department of Analyses. BR
  • Braun, Paulini; Federal University of Rio Grande do Sul. Faculty of Pharmacy. Department of Analyses. BR
  • Leal, Mirna Bainy; Federal University of Rio Grande do Sul. Institute of Basic Health Sciences. Department of Pharmacology. BR
  • Larentis, Elisa Raup; Federal University of Rio Grande do Sul. Faculty of Pharmacy. Department of Analyses. BR
  • Aboy, Ana Lucia; Federal University of Rio Grande do Sul. Faculty of Pharmacy. Department of Analyses. BR
  • Bulcão, Rachel Picada; Federal University of Santa Maria. Center of Health Sciences. Department of Clinical and Toxicological Analyses. BR
  • Garcia, Solange Cristina; Federal University of Santa Maria. Center of Health Sciences. Department of Clinical and Toxicological Analyses. BR
  • Limberger, Renata Pereira; Federal University of Rio Grande do Sul. Faculty of Pharmacy. Department of Analyses. BR
Braz. j. pharm. sci ; 45(2): 273-278, Apr.-June 2009. tab
Article in English | LILACS | ID: lil-525905
ABSTRACT
Citrus aurantium (bitter orange) is characterized by the presence of p-synephrine, an amine structurally and pharmacologically related to ephedrine. Besides the same adverse effects as ephedrine, nowadays it is believed that altered levels of p-synephrine can be associated to the occurrence of migraine and cluster headaches. Leaves and fruits of this species are highly commercialized in form of teas and herbal preparations, but without taking into account the risks associated with its use. This work describes a survey of teas and herbal preparations containing C. aurantium, commercialized in Porto Alegre (RS/Brazil), in order to verify the presence of p-synephrine. Comparing with the mean amount available in the supermarkets, around 20 percent of the teas and 10 percent of the herbal preparations declared the presence of C. aurantium in their labels. In a sampling of 15 teas and 2 herbal preparations selected for the analysis, the presence of p-synephrine was characterized in all samples, with levels between 0.0040 to 0.2308 percent, leading to a caution that even being natural products, they are not free of adverse effects.
RESUMO
Citrus aurantium (laranjeira-azeda) é caracterizada pela presença de p-sinefrina, amina estrutural e farmacologicamente similar à efedrina. Além de poder causar efeitos adversos similares aos da efedrina, atualmente acredita-se que níveis endógenos alterados de p-sinefrina possam estar associados à causa da enxaqueca. Folhas e frutos desta espécie são largamente comercializados na forma de chá e em preparados de erva-mate, sem que sejam considerados os riscos associados ao seu uso. Neste sentido, este trabalho descreve uma pesquisa em chás e preparados de erva-mate comercializados em Porto Alegre, para verificar a presença de C. aurantium e p-sinefrina. Comparando com a quantidade média disponível nas prateleiras dos supermercados, cerca de 20 por cento dos chás e 10 por cento dos preparados de erva-mate declaravam nos rótulos conter C. aurantium. De uma amostragem de 15 chás e 2 preparados de erva-mate selecionados para análise, em todos foi caracterizada a presença de p-sinefrina com níveis variando de 0,0040 a 0,2308 por cento, levando ao alerta de que mesmo sendo naturais, estes produtos podem não ser destituídos de reações adversas.
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Full text: Available Index: LILACS (Americas) Main subject: Beverages / Synephrine / Ilex paraguariensis / Products Commerce Type of study: Evaluation studies Country/Region as subject: South America / Brazil Language: English Journal: Braz. j. pharm. sci Year: 2009 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Rio Grande do Sul/BR / Federal University of Santa Maria/BR

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Full text: Available Index: LILACS (Americas) Main subject: Beverages / Synephrine / Ilex paraguariensis / Products Commerce Type of study: Evaluation studies Country/Region as subject: South America / Brazil Language: English Journal: Braz. j. pharm. sci Year: 2009 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Rio Grande do Sul/BR / Federal University of Santa Maria/BR