Humid storage conditions increase the dissolution rate of diazepam from solid dispersions prepared by melt agglomeration

Anna Cecilia Jørgensen, Anette Seo Torstenson

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    Abstract

    The purpose of this study is to investigate the effect of cooling mode and storage conditions on the dissolution rate of a solid dispersion prepared by melt agglomeration. The aim has been to relate this effect to the solid state properties of the agglomerates. The cooling mode had an effect on the dissolution rate, probably due to several factors such as the morphology of the agglomerates and crystallinity of the carrier. The dissolution increased with increasing temperature and relative humidity which increased the amount of water sorbed in the carrier. The processing and storage conditions were shown to have a complex interplay.
    Original languageEnglish
    JournalPharmaceutical Development and Technology
    Volume13
    Issue number3
    Pages (from-to)187-95
    Number of pages8
    ISSN1083-7450
    DOIs
    Publication statusPublished - 2008

    Bibliographical note

    Keywords: Calorimetry, Differential Scanning; Diazepam; Drug Storage; Humidity; Hypnotics and Sedatives; Kinetics; Microscopy, Electron, Scanning; Particle Size; Solubility; Spectroscopy, Near-Infrared; Thermogravimetry; Water; X-Ray Diffraction

    Keywords

    • Former Faculty of Pharmaceutical Sciences

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