Preparation and evaluation of metoprolol tartrate sustained-release pellets using hot melt extrusion combined with hot melt coating.

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Preparation and evaluation of metoprolol tartrate sustained-release pellets using hot melt extrusion combined with hot melt coating.

Drug Dev Ind Pharm. 2017 Jan 27;:1-24

Authors: Yang Y, Shen L, Li J, Shan W

Abstract
The objective of this study was to prepare and evaluate metoprolol tartrate sustained-release pellets. Cores were prepared by hot melt extrusion and coated pellets were prepared by hot melt coating. Cores were found to exist in a single-phase state and drug in amorphous form. Plasticizers had a significant effect on torque and drug content, while release modifiers and coating level significantly affected the drug release behavior. The mechanisms of drug release from cores and coated pellets were Fickian diffusion and diffusion-erosion, respectively. The coated pellets exhibited sustained-release properties in vitro and in vivo.

PMID: 28128647 [PubMed - as supplied by publisher]

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