Comparative analyses/evaluation of the textural properties of naproxen sodium tablets and powders prepared using microwave and other drying techniques--颗粒学报PARTICUOLOGY

Al-Ali, M., Periasamy, S., & Parthasarathy, R. (2020). Comparative analyses/evaluation of the textural properties of naproxen sodium tablets and powders prepared using microwave and other drying techniques. Particuology, 50, 197-204. https://doi.org/10.1016/j.partic.2019.08.004

Comparative analyses/evaluation of the textural properties of naproxen sodium tablets and powders prepared using microwave and other drying techniques

Maha Al-Ali ^a, Selvakannan Periasamy ^b, Rajarathinam Parthasarathy ^a *

a Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia
b Applied Chemistry, School of Science, RMIT University, Melbourne, Victoria 3000, Australia

10.1016/j.partic.2019.08.004

Volume 50, June 2020, Pages 197-204

Received 16 April 2019, Revised 21 July 2019, Accepted 1 August 2019, Available online 2 November 2019, Version of Record 7 April 2020.

E-mail: rchrp@rmit.edu.au

Highlights

• Tableting process decreased the crystallinity in all cases except for vacuum drying.

• All prepared tablets were flat and smooth with few cracks.

• Properties of tablets from microwave drying were like those from other methods.

• Tablets characteristics were related to the properties of their respective powders.

Abstract

The properties of oral tablets are normally related to the properties of the powders they contain. Characterization of oral tablets is important for the development of tablets with rapid and safe release of the active ingredient. In this study, a new formulation of naproxen sodium was prepared and dried using microwave drying (MWD) and the following conventional drying techniques: freeze-drying (FD), vacuum drying (VD), and convective drying (CD). The reference drug powder (RDP) and dry granules MWG, CDG, VDG, and FDG, which were dried using MWD, CD, VD, and FD, respectively were compressed to form tablets labeled RF-TAB, MW-TAB, CD-TAB, VD-TAB, and FD-TAB, respectively. The dry granules and prepared tablets were characterized using Fourier transform infrared spectrometry, scanning electron microscopy, and X-ray diffraction. This study aimed to explore the correlation between the textural characteristics of the tablets and their respective powders for different drying methods. Although the morphologies of the dry particles were irregular, the prepared tablets were smooth and flat with few cracks. Drying increased the amorphous nature of the granules but decreased their crystallinity. The crystallinities of all tablets, except those prepared by VD, decreased after compression. In summary, the characteristics of the prepared tablets were acquired from their respective powders.

Graphical abstract

Keywords

Naproxen sodium; Microwave drying; Tablet; Texture; Crystallinity

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