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Related Experiment Videos

Disaggregation of compressed tablets.

M H Rubinstein, D M Bodey

    Journal of Pharmaceutical Sciences
    |December 1, 1976
    PubMed
    Summary
    This summary is machine-generated.

    Optimizing tablet disintegration, this study found that specific maize starch ratios (intragranular and extragranular) maximize tablet surface area. Lower compaction pressures are recommended for enhanced tablet disintegration and surface area generation.

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    Area of Science:

    • Pharmaceutical Sciences
    • Materials Science

    Background:

    • Dibasic calcium phosphate is a common pharmaceutical excipient.
    • Tablet disintegration is crucial for drug release and bioavailability.
    • Maize starch is widely used as a disintegrant and filler in tablets.

    Purpose of the Study:

    • To investigate the impact of intragranular and extragranular maize starch proportions on the surface area generated by disintegrating dibasic calcium phosphate tablets.
    • To determine the optimal starch formulation and compaction pressure for maximizing tablet surface area.

    Main Methods:

    • Tablets were formulated using dibasic calcium phosphate with varying ratios of intra- and extragranular maize starch.
    • Tablets were compressed at three different compaction pressures.
    • Tablet surface area after 10 and 30 minutes of disintegration was measured using a novel automated technique.

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    Main Results:

    • The optimal starch combinations for maximum surface area generation were either 2.5% intragranular with 12.5% extragranular starch, or 15% intragranular starch alone.
    • Tablet strength was not significantly affected by the distribution of starch.
    • Lower compaction pressures were found to be optimal for achieving maximum surface area generation.

    Conclusions:

    • Specific ratios of intragranular and extragranular maize starch can significantly enhance the surface area of disintegrating dibasic calcium phosphate tablets.
    • Compaction pressure plays a critical role, with lower pressures favoring greater surface area generation.
    • These findings offer valuable insights for optimizing tablet formulations to improve drug dissolution and bioavailability.