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Using fluid bed granulation to improve the dissolution of poorly water-soluble drugs BABT
Takahashi,Andrea Ikeda; Lourenço,Felipe Rebello; Duque,Marcelo Dutra; Consiglieri,Vladi Olga; Ferraz,Humberto Gomes.
In this study, fluid bed granulation was applied to improve the dissolution of nimodipine and spironolactone, two very poorly water-soluble drugs. Granules were obtained with different amounts of sodium dodecyl sulfate and croscarmellose sodium and then compressed into tablets. The dissolution behavior of the tablets was studied by comparing their dissolution profiles and dissolution efficiency with those obtained from physical mixtures of the drug and excipients subjected to similar conditions. Statistical analysis of the results demonstrated that the fluid bed granulation process improves the dissolution efficiency of both nimodipine and spironolactone tablets. The addition of either the surfactant or the disintegrant employed in the study proved to have...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fluid bed; Granulation; Dissolution efficiency; Nimodipine; Spironolactone.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000300020
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Physical characterization of multiparticulate systems BJPS
Issa,Michele Georges; Souza,Natalia Vieira de; Duque,Marcelo Dutra; Ferraz,Humberto Gomes.
ABSTRACT The search for new pharmaceutical dosage forms and different drug delivery systems already used in therapeutics is a global trend, serving as an opportunity to expand the portfolio for the pharmaceutical industry. In this context, multiparticulate systems, such as pellets, granules, and minitablets, represent an attractive alternative, given the range of possibilities they provide. Among the methods used in the production of these systems, we highlight the process of extrusion-spheronization for pellet manufacture, wet granulation and hot-melt extrusion for the obtention of granules, and direct compression for minitablets. Although highly versatile, depending on the technology chosen, many processes and formulation variables can influence the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Multiparticulate systems/physical characterization; Pellets; Granules; Minitablets.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000400403
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Applications of USP apparatus 3 in assessing the in vitro release of solid oral dosage forms BJPS
Pezzini,Bianca Ramos; Issa,Michele Georges; Duque,Marcelo Dutra; Ferraz,Humberto Gomes.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Solid dosage forms/in vitro release; Solid dosage forms/dissolution; Apparatus 3/use/evaluation of solid dosage forms; Reciprocating cylinders.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502015000200265
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