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Relations between tablet properties.

J A De Jong

    Pharmaceutisch Weekblad. Scientific Edition
    |February 20, 1987
    PubMed
    Summary
    This summary is machine-generated.

    Simple mathematical models link tablet crushing strength, friability, and disintegration time. Friability correlates with tablet porosity and specific crushing strength, while disintegration time depends on porosity or granule surface area.

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    Area of Science:

    • Pharmaceutical Sciences
    • Materials Science

    Background:

    • Tablet properties like crushing strength, friability, and disintegration time are critical for drug efficacy and patient compliance.
    • Understanding the relationships between these properties and formulation/process parameters is essential for robust tablet design.

    Purpose of the Study:

    • To develop and validate simple mathematical models describing the relationships between specific crushing strength, friability, and disintegration time of tablets.
    • To investigate the influence of porosity and granule properties on tablet characteristics.

    Main Methods:

    • Utilized simple mathematical modeling to establish theoretical relationships.
    • Defined specific crushing strength as crushing strength divided by breaking surface.
    • Investigated two distinct models for disintegration time based on different disintegration mechanisms.

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  • Verified theoretical models using two tablet formulations produced under varied process conditions.

    • Main Results:

    • Established a relationship between friability, tablet porosity, and specific crushing strength, independent of process conditions.
    • Demonstrated that disintegration time can be modeled based solely on porosity or on the specific surface area by weight of granules.
    • Validated the theoretical models for the tested tablet formulations.

    Conclusions:

    • Mathematical models provide a framework for understanding tablet mechanical properties and disintegration behavior.
    • Tablet porosity and granule characteristics are key determinants of friability and disintegration time.
    • The developed models offer insights into tablet formulation and manufacturing optimization.