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26. March 2017
Abstract The aim of this study was to prepare controlled-release (CR) granules with suitable particle strength, flowability, particle size distribution (PSD) and density characteristics for blending with other excipients. We also wanted these CR granules to contain large quantities of active pharmaceutical ingredient (API). A high shear mixer was used to mix an API with various polymers at various feed ratios, and the resulting granulated materials were sprayed with solvent. The wet granules...