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General class of multiparticulate dissolution models

P V Pedersen, K F Brown

    Journal of Pharmaceutical Sciences
    |October 1, 1977
    PubMed
    Summary
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    A new formula rigorously describes multiparticulate system dissolution under various conditions. This model extends existing kinetic approaches for drug release and particle behavior analysis.

    Area of Science:

    • Pharmaceutical Sciences
    • Physical Chemistry
    • Chemical Engineering

    Background:

    • Multiparticulate systems are widely used in drug delivery.
    • Understanding dissolution kinetics is crucial for predicting drug release profiles.
    • Existing models often simplify dissolution conditions, limiting their applicability.

    Purpose of the Study:

    • To develop a generally applicable formula for describing the dissolution of multiparticulate systems.
    • To extend existing kinetic models from sink to nonsink dissolution conditions.
    • To provide a rigorous framework for analyzing multiparticulate dissolution behavior.

    Main Methods:

    • Utilizing a single-particle dissolution model as a basis.
    • Incorporating the initial particle size distribution.

    Related Experiment Videos

  • Extending a log-normal kinetic model to nonsink conditions.

    • Main Results:

    • A generally applicable formula for multiparticulate dissolution under sink and nonsink conditions was derived.
    • The kinetic model for log-normal systems was successfully extended to nonsink conditions.
    • The presented equation encompasses a broad range of multiparticulate models.

    Conclusions:

    • The derived formula provides a rigorous description of multiparticulate dissolution.
    • The model is applicable across various dispersion parameters and dissolution capacities.
    • This work offers a unified approach to understanding drug release from multiparticulate systems.