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Related Experiment Videos

Practical limitations of tableting indices.

R Kuppuswamy1, S R Anderson, S W Hoag

  • 1Pharmacia Corporation, Skokie, Illinois, USA.

Pharmaceutical Development and Technology
|January 5, 2002
PubMed
Summary
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Tableting indices showed poor correlation with tablet strength and friability, questioning their practicality for predicting material compactibility. Models developed for one material set failed to predict compactibility in new powders.

Area of Science:

  • Pharmaceutical Sciences
  • Materials Science
  • Chemical Engineering

Background:

  • Tabletability is crucial for pharmaceutical manufacturing.
  • Tableting indices are proposed to quantify material compactibility.
  • Existing methods lack robust prediction of compactibility for diverse materials.

Purpose of the Study:

  • To establish a quantitative relationship between tableting indices and material compactibility.
  • To assess the predictive power of tableting indices for tablet strength and friability.
  • To evaluate the generalizability of predictive models across different powder formulations.

Main Methods:

  • Nine mixtures with varying compactibility were compressed into tablets.
  • Tablet tensile strength and friability were measured.

Related Experiment Videos

  • Tableting indices were determined using an Instron Universal testing machine.
  • Artificial neural networks modeled the relationship between indices and tablet properties.
  • Six new powders were used for model validation.

    • Main Results:

    • Little correlation was found between predicted and experimentally determined tablet strength and friability.
    • Similar tableting indices did not consistently predict comparable compactibility.
    • Models failed to accurately predict compactibility for new powder formulations.

    Conclusions:

    • Tableting indices demonstrated limited success in predicting material compactibility.
    • Predictive models for compactibility are not universally applicable across different materials.
    • The practical utility of tableting indices for diverse pharmaceutical powders is questionable.