DELIVERY BEHAVIOR OF CAFFEINE CONTROLLED RELEASE DOSAGE FORM ON HYDROPHILIC MATRICES

Autores

  • Antonio Teixeira
  • Sammy Ibrahim
  • Frank Martinuzzi

DOI:

https://doi.org/10.7213/reb.v28i64.22732

Palavras-chave:

Hydroxypropylcellulose, Controlled Release, Corn Starch, Lactose, Hydrophilic

Resumo

The aim of this experiment was to evaluate the release behavior of caffeine as once daily drug on hydrophilic matrices. Caffeine was selected as a model drug because of its short half live and rapid absorption. To decrease the rate of drug release to the absorption site, the physical barrier was prepared by compressing a mixture of a hydrophilic polymer and drug. The hydrophilic polymers used in this experiment were hydroxypropylcellulose (HPC) and corn starch. It was found that the increase of HPC level on the formulation contributed significant changes on the drug release. The study also investigated the influences of diluents (corn starch:lactose) on the HPC matrix. The results showed that the presence of starch on the matrix tablet could modify the release rate. The mechanism of release was found to be anomalous. This is mainly due to the fact that all of n values from the release kinetics varied from 0.7317 to 0.8575 with squared correlation coefficient in the range of 0.9904 – 0.9967.

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Publicado

2006-11-24

Como Citar

Teixeira, A., Ibrahim, S., & Martinuzzi, F. (2006). DELIVERY BEHAVIOR OF CAFFEINE CONTROLLED RELEASE DOSAGE FORM ON HYDROPHILIC MATRICES. Estudos De Biologia, 28(64). https://doi.org/10.7213/reb.v28i64.22732

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Seção

Fluxo Contínuo