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Forma farmacêutica sólida à base de pó de folhas de sena e do respetivo extrato

Forma farmacêutica sólida à base de pó de folhas de sena e do respetivo extrato

Arundhati Bhattacharya / Meenakshi Bajpai / Vijay Agarwal

98,90 €
IVA incluido
Disponible
Editorial:
KS OmniScriptum Publishing
Año de edición:
2026
Materia
Farmacología
ISBN:
9786630348774
98,90 €
IVA incluido
Disponible

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A maioria das formulações à base de plantas carece de estudos pré-formulacionais e pós-formulacionais. Assim, procurou-se determinar as características pré-formulacionais e pós-formulacionais do pó de folha de sena e do senosídeo cálcico. O comprimido convencional de pó de folha de sena e senosídeo de cálcio pode libertar uma quantidade significativa de fármaco no ambiente fisiológico do estômago antes de atingir o local de ação. Por conseguinte, foi preparado um comprimido com revestimento entérico de senosídeo de cálcio e pó de folha de sena, utilizando acetato-ftalato de celulose, para evitar a perda inicial de 5-8% de senosídeo no estômago. Para este efeito, foram otimizados diferentes fatores de formulação. A libertação in vitro do comprimido com revestimento entérico foi realizada em HCl 0,1 N e tampão fosfato de pH 6,8. Após o revestimento entérico, verificou-se que o comprimido se tornava mais dependente do pH, libertando o fármaco apenas a valores de pH mais elevados. Este trabalho de investigação deverá ser especialmente útil para profissionais envolvidos no desenvolvimento de formulações de medicamentos à base de plantas, ou para qualquer outra pessoa que pretenda realizar estudos de pré-formulação e pós-formulação de medicamentos à base de plantas.

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