Article ID Journal Published Year Pages File Type
2486851 Journal of Pharmaceutical Sciences 2009 13 Pages PDF
Abstract

ABSTRACT:We report the case of BMS-488043-PVP solid dispersions which when analysed using modulated DSC showed compliance with the Gordon-Taylor model, confirming ideal mixing behaviour of the two components. The nature or presence of stabilising interactions between drug and PVP could not be confirmed using this technique. Use of FT-IR, Raman and solid-state NMR spectroscopy confirmed the presence of stabilising hydrogen bond interactions between the drug and PVP. Similar interactions are present as intermolecular bonds in the crystalline and pure amorphous drug system. The Gordon-Taylor equation, as it is not predictive of the presence of intermolecular bonds such as hydrogen bonding in an amorphous dispersion, may underestimate the likely physical stability of solid dispersions which are produced and stabilised by these interactions. © 2009 Wiley-Liss, Inc. and the American Pharmacists Association J Pharm Sci 98:3456–3468, 2009

Related Topics
Health Sciences Pharmacology, Toxicology and Pharmaceutical Science Drug Discovery
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