Spray-dried amorphous solid dispersions of griseofulvin in HPC/soluplus/SDS: Elucidating the multifaceted impact of SDS as a minor component

Mahbubur Rahman, Stephanie Ahmad, James Tarabokija, Nathaniel Parker, Ecevit Bilgili

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

This study aimed to elucidate the impact of a common anionic surfactant, sodium dodecyl sulfate (SDS), along with hydroxypropyl cellulose (HPC) and Soluplus (Sol) on the release of griseofulvin (GF), a poorly soluble drug, from amorphous solid dispersions (ASDs). Solutions of 2.5% GF and 2.5%–12.5% HPC/Sol with 0.125% SDS/without SDS were prepared in acetone–water and spray-dried. The solid-state characterization of the ASDs suggests that GF–Sol had better miscibility and stronger interactions than GF–HPC and formed XRPD-amorphous GF, whereas HPC-based ASDs, especially the ones with a lower HPC loading, had crystalline GF. The dissolution tests show that without SDS, ASDs provided limited GF supersaturation (max. 250%) due to poor wettability of Sol-based ASDs and extensive GF recrystallization in HPC-based ASDs (max. 50%). Sol-based ASDs with SDS exhibited a dramatic increase in supersaturation (max. 570%), especially at a higher Sol loading, whereas HPC-based ASDs with SDS did not. SDS did not interfere with Sol’s ability to inhibit GF recrystallization, as confirmed by the precipitation from the supersaturated state and PLM imaging. The favorable use of SDS in a ternary ASD was attributed to both the wettability enhancement and its inability to promote GF recrystallization when used as a minor component along with Sol.

Original languageEnglish (US)
Article number197
JournalPharmaceutics
Volume12
Issue number3
DOIs
StatePublished - Mar 2020

All Science Journal Classification (ASJC) codes

  • Pharmaceutical Science

Keywords

  • Amorphous solid dispersions
  • Drug release
  • Recrystallization
  • Spray drying
  • Supersaturation
  • Wettability

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