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Formulation of controlled-release baclofen matrix tablets: Influence of some hydrophilic polymers on the release rate and in vitro evaluation

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Abstract

This work aims at investigating different types and levels of hydrophilic matrixing agents, including methylcellulose (MC), sodium alginate (Alg), and sodium carboxymethylcellulose (CMC), in an attempt to formulate controlled-release matrix tablets containing 25 mg baclofen. The tablets were prepared by wet granulation. Prior to compression, the prepared granules were evaluated for flow and compression characteristics. In vitro, newly formulated controlled-release tablets were compared with standard commercial tablets (Lioresal and baclofen). The excipients used in this study did not alter physicochemical properties of the drug, as tested by the thermal analysis using differential scanning calorimetry. The flow and compression characteristics of the prepared granules significantly improved by virtue of granulation process. Also, the prepared matrix tablets showed good mechanical properties (hardness and friability). MC- and Alg-based tablet formulations showed high release-retarding efficiency, and good reproducibility and stability of the drug release profiles when stored for 6 months in ambient room conditions, suggesting that MC and Alg are good candidates for preparing modified-release baclofen tablet formulations.

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Author information

Authors and Affiliations

  1. Department of Pharmaceutics Faculty of Pharmacy, Minia University, Minia, Egypt

    Hamdy Abdelkader

  2. Department of Pharmaceutics Faculty of Pharmacy, Alexandria University, Alexandria, Egypt

    Ossama Youssef Abdalla

  3. Department of Analytical Chemistry Faculty of Pharmacy, Minia University, Minia, Egypt

    Hesham Salem

Authors
  1. Hamdy Abdelkader
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  2. Ossama Youssef Abdalla
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  3. Hesham Salem
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Corresponding author

Correspondence to Hamdy Abdelkader.

Additional information

Themed Issue: Oral Controlled Release Development and Technology

Guest Editor — Stephen A. Howard and Jian-Xin Li

Published: November 30, 2007

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Abdelkader, H., Abdalla, O.Y. & Salem, H. Formulation of controlled-release baclofen matrix tablets: Influence of some hydrophilic polymers on the release rate and in vitro evaluation. AAPS PharmSciTech 8, 100 (2007). https://doi.org/10.1208/pt0804100

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  • DOI: https://doi.org/10.1208/pt0804100

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