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. 2024 Jan;41(1):185-197.
doi: 10.1007/s11095-023-03626-6. Epub 2023 Nov 17.

Elucidating the Impact of Material Properties on Tablet Manufacturability for Binary Paracetamol Blends

Lena Mareczek  1   2 , Carolin Riehl  3 , Meike Harms  2 , Stephan Reichl  1
Affiliations

Elucidating the Impact of Material Properties on Tablet Manufacturability for Binary Paracetamol Blends

Lena Mareczek et al. Pharm Res. 2024 Jan.

Abstract

Purpose: Although the mechanical properties of paracetamol and MCC are extensively described in literature, there still is a need for a better understanding of the material properties impacting them. Thus, this study systematically analyzed material properties of paracetamol-MCC blends to elucidate their influence on the mechanical tablet properties in roller compaction and direct compression with special focus on surface properties.

Methods: Multiple material characteristics of binary mixtures of paracetamol and MCC with varying drug loads were analyzed, with particular emphasis on specific surface area and surface energy. Subsequently, mechanical tablet properties of the materials in direct compression and after roller compaction were examined.

Results: It was demonstrated that the impact of the initial material properties on mechanical tablet properties prevailed over the impact of processing route for paracetamol-MCC blends, underlining the importance of material characterization for tabletability of oral solid dosage forms. By applying bivariate as well as multivariate analysis, key material properties influencing the tabletability of paracetamol, MCC and its mixtures such as surface area, surface energy, effective angle of internal friction and density descriptors were identified.

Conclusions: This study highlighted the importance of comprehensive assessment of different material characteristics leading to a deeper understanding of underlying factors impacting mechanical tablet properties in direct compression and after roller compaction by the example of paracetamol-MCC mixtures with varying drug loads. Furthermore, it was shown that multivariate analysis could be a valuable extension to common bivariate analysis to reveal underlying correlations of material properties.

Keywords: direct compression; powder characterization; roller compaction; surface properties; tabletability.

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