O efeito da divisão na qualidade e na liberação in vitro de cloridrato de metformina de comprimidos de liberação prolongada (XR)

Autores

DOI:

https://doi.org/10.33448/rsd-v10i11.19348

Palavras-chave:

Metformina; Liberação controlada de fármacos; Dissolução; Controle de qualidade; Diabetes mellitus.

Resumo

O cloridrato de metformina (MetCl) é usado mundialmente no tratamento do diabetes mellitus tipo 2. Embora os comprimidos de liberação prolongada (XR) contendo 500 mg, 850 mg e 1000 mg de MetCl sejam comercializados, não é incomum dividir o comprimido quando a dosagem necessária não está disponível comercialmente. O objetivo do trabalho foi avaliar os efeitos da divisão no desempenho in vitro de comprimidos XR contendo MetCl. Realizamos ensaios de controle de qualidade e estudos de perfil de dissolução comparativos entre diversos medicamentos contendo 500 mg e 1000 mg de MetCl, comercializados no Brasil e na Argentina. Comprimidos contendo 1000 mg de MetCl foram divididos pela metade (amostras de teste) e comparados com comprimidos inteiros de produtos contendo 500 mg de MetCl (amostras de referência). Os comprimidos reduzidos ao meio são mais frágeis e apresentam menor uniformidade de massa e unidade de dosagem em relação aos inteiros. No entanto, foi evidenciado pelo parâmetro de F2 bootstrapping que a divisão dos comprimidos de MetCl XR não afetou significativamente os perfis de liberação do fármaco in vitro em comparação com os comprimidos inteiros. Além disso, nem o mecanismo de liberação do fármaco nem a cinética de liberação foram significativamente afetados. Os comprimidos XR contendo 1000 mg de cloridrato de metformina podem ser elegíveis para divisão, no entanto, os fabricantes devem fornecer sulcos adequadas nas superfícies dos comprimidos para tornar a divisão adequada e mais segura para os pacientes.

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04/09/2021

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SANTOS, L. G. da F.; SEGALL, A. I. .; KI HAN, Y.; KIZELMAN, M. P.; FERREIRA, M. P. .; SILVA, A. C. F. .; MARTINS, F. S. .; CASTRO, W. V. de .; FREITAS, O. de; COUTO, R. O. do. O efeito da divisão na qualidade e na liberação in vitro de cloridrato de metformina de comprimidos de liberação prolongada (XR). Research, Society and Development, [S. l.], v. 10, n. 11, p. e368101119348, 2021. DOI: 10.33448/rsd-v10i11.19348. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/19348. Acesso em: 30 jun. 2024.

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Ciências da Saúde