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Featured researches published by Helena Miyoco Yano.


Acta Paulista De Enfermagem | 2011

Avaliação do teor de Atenolol em comprimidos divididos com faca caseira e aparelho cortador

Mariangela Tirico Auricchio; Helena Miyoco Yano; Ana Paula Santos; Adriana Bugno

Objective: To evaluate whether the content of Atenolol on fragments of tablets in dosages of 100 mg, 50 mg and 25 mg broken into four parts with the aid of homemade knife and cutter unit tablets is different, depending on how the division is performed. Methods: The intact tablets were divided with a knife and with a homemade pill cutter device, and the concentrations of Atenolol were determined in all fragments. Results: No significant difference existed between the levels of Atenolol obtained after splitting the tablets with the homemade knife or the pill cutter device, although the division led to severe levels of dispersal among fragments. When divided in half, the dispersion of results was between 7% and 12.1%, and when divided into four parts, it was between 9.2% and 21.1%, indicating the possibility of compromising the effectiveness of treating patients regardless of how the division was made. Conclusion: The results indicated a greater dispersion than would be acceptable to guarantee a uniform dose received at each drug administration, regardless of the way the division was performed, either by phone or homemade knife cutter pills.Objective: To evaluate whether the content of Atenolol on fragments of tablets in dosages of 100 mg, 50 mg and 25 mg broken into four parts with the aid of homemade knife and cutter unit tablets is different, depending on how the division is performed. Methods: The intact tablets were divided with a knife and with a homemade pill cutter device, and the concentrations of Atenolol were determined in all fragments. Results: No significant difference existed between the levels of Atenolol obtained after splitting the tablets with the homemade knife or the pill cutter device, although the division led to severe levels of dispersal among fragments. When divided in half, the dispersion of results was between 7% and 12.1%, and when divided into four parts, it was between 9.2% and 21.1%, indicating the possibility of compromising the effectiveness of treating patients regardless of how the division was made. Conclusion: The results indicated a greater dispersion than would be acceptable to guarantee a uniform dose received at each drug administration, regardless of the way the division was performed, either by phone or homemade knife cutter pills.


Acta Paulista De Enfermagem | 2011

Evaluación de la proporción de Atenolol en comprimidos divididos con cuchillo casero y con cortador

Mariangela Tirico Auricchio; Helena Miyoco Yano; Ana Paula Santos; Adriana Bugno

Objective: To evaluate whether the content of Atenolol on fragments of tablets in dosages of 100 mg, 50 mg and 25 mg broken into four parts with the aid of homemade knife and cutter unit tablets is different, depending on how the division is performed. Methods: The intact tablets were divided with a knife and with a homemade pill cutter device, and the concentrations of Atenolol were determined in all fragments. Results: No significant difference existed between the levels of Atenolol obtained after splitting the tablets with the homemade knife or the pill cutter device, although the division led to severe levels of dispersal among fragments. When divided in half, the dispersion of results was between 7% and 12.1%, and when divided into four parts, it was between 9.2% and 21.1%, indicating the possibility of compromising the effectiveness of treating patients regardless of how the division was made. Conclusion: The results indicated a greater dispersion than would be acceptable to guarantee a uniform dose received at each drug administration, regardless of the way the division was performed, either by phone or homemade knife cutter pills.Objective: To evaluate whether the content of Atenolol on fragments of tablets in dosages of 100 mg, 50 mg and 25 mg broken into four parts with the aid of homemade knife and cutter unit tablets is different, depending on how the division is performed. Methods: The intact tablets were divided with a knife and with a homemade pill cutter device, and the concentrations of Atenolol were determined in all fragments. Results: No significant difference existed between the levels of Atenolol obtained after splitting the tablets with the homemade knife or the pill cutter device, although the division led to severe levels of dispersal among fragments. When divided in half, the dispersion of results was between 7% and 12.1%, and when divided into four parts, it was between 9.2% and 21.1%, indicating the possibility of compromising the effectiveness of treating patients regardless of how the division was made. Conclusion: The results indicated a greater dispersion than would be acceptable to guarantee a uniform dose received at each drug administration, regardless of the way the division was performed, either by phone or homemade knife cutter pills.


Acta Paulista De Enfermagem | 2011

Evaluation of the content of Atenolol tablets divided with a knife and homemade machine cutter

Mariangela Tirico Auricchio; Helena Miyoco Yano; Ana Paula Santos; Adriana Bugno

Objective: To evaluate whether the content of Atenolol on fragments of tablets in dosages of 100 mg, 50 mg and 25 mg broken into four parts with the aid of homemade knife and cutter unit tablets is different, depending on how the division is performed. Methods: The intact tablets were divided with a knife and with a homemade pill cutter device, and the concentrations of Atenolol were determined in all fragments. Results: No significant difference existed between the levels of Atenolol obtained after splitting the tablets with the homemade knife or the pill cutter device, although the division led to severe levels of dispersal among fragments. When divided in half, the dispersion of results was between 7% and 12.1%, and when divided into four parts, it was between 9.2% and 21.1%, indicating the possibility of compromising the effectiveness of treating patients regardless of how the division was made. Conclusion: The results indicated a greater dispersion than would be acceptable to guarantee a uniform dose received at each drug administration, regardless of the way the division was performed, either by phone or homemade knife cutter pills.Objective: To evaluate whether the content of Atenolol on fragments of tablets in dosages of 100 mg, 50 mg and 25 mg broken into four parts with the aid of homemade knife and cutter unit tablets is different, depending on how the division is performed. Methods: The intact tablets were divided with a knife and with a homemade pill cutter device, and the concentrations of Atenolol were determined in all fragments. Results: No significant difference existed between the levels of Atenolol obtained after splitting the tablets with the homemade knife or the pill cutter device, although the division led to severe levels of dispersal among fragments. When divided in half, the dispersion of results was between 7% and 12.1%, and when divided into four parts, it was between 9.2% and 21.1%, indicating the possibility of compromising the effectiveness of treating patients regardless of how the division was made. Conclusion: The results indicated a greater dispersion than would be acceptable to guarantee a uniform dose received at each drug administration, regardless of the way the division was performed, either by phone or homemade knife cutter pills.


Journal of AOAC International | 2008

Development and validation of sensitive methods for determination of sibutramine hydrochloride monohydrate and direct enantiomeric separation on a protein-based chiral stationary phase.

Anil Kumar Singh; Pedro López García; Fabio Pereira Gomes; Helena Miyoco Yano; Mariangela Tirico Auricchio; Erika Rosa Maria Kedor-Hackmann; Maria Inês Rocha Miritello Santoro


Revista do Instituto Adolfo Lutz (Impresso) | 2012

Validation of new analytical methodology for determining fenoterol hydrobromide by HPLC: application in pharmaceutical products

Helena Miyoco Yano; Fernanda Fernandes Farias; Marcelo Beiriz Del Bianco; Pedro López García


Revista do Instituto Adolfo Lutz (Impresso) | 2005

Digitoxina: superdosagem em medicamento manipulado

Helena Miyoco Yano; Mariangela Tirico Auricchio


Latin American Journal of Pharmacy | 2011

Anti-inflammatory activity and effect on locomotion of Polygonum persicaria L. (Polygonaceae) extract in rats

Roberto De Lucia; Lia S.S. Hayashi; Elfriede Marianne Bacchi; Helena Miyoco Yano


BEPA. Boletim Epidemiológico Paulista (Online) | 2011

Problematização de rotulagem em produtos farmacêuticos manipulados de acordo com a legislação vigente

Helena Miyoco Yano; Rita Cristina Agostinho Guardia; Fernanda Fernandes Farias; Marcelo Beiriz Del Bianco; Mariangela Tirico Auricchi


Revista do Instituto Adolfo Lutz (Impresso) | 2008

Intoxicação por colchicina em formulação manipulada

Helena Miyoco Yano; Adriana Bugno; Mariangela Tirico Auricchio


Revista do Instituto Adolfo Lutz (Impresso) | 2005

Determinação de quinolonas por cromatografia líquida de alta eficiência empregando coluna monolítica de fase reversa

Blanca Elena Ortega Markman; Maria Regina Walter Koschtschak; Helena Miyoco Yano

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