Abstract
Abstract The goal of the present study is to prepare a stable, multiple-unit, extended-release dosage form containing oxycodone pellets coated with aqueous ethylcellulose (EC) dispersion, Surelease E-7-19050. The application of 18% w/w of EC leads to the similar drug release with the hydrophobic, non-swelling, matrix reference product containing 20 mg of oxycodone. Increasing the compression force to 9 kN and including more than 50% w/w of oxycodone pellets into the formulation resulted in faster drug release, indicating the damaging to the EC film coating. The physical appearance of the final formulation, assay of oxycodone, moisture content, and dissolution data over the stability period showed that the multiple-unit pellet system (MUPS) is efficient for the production of highly stable product.
Published Version
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