Title: The effect of binder on the pharmaceutical tablets capping tendency

Authors: Neila Khabou Masmoudi; Safa Ben Brahim; Souad Sfar; Foued ELHaloani

Addresses: Physics and Mechanical Materials (PMM) Unit, Analysis Laboratory of the Electromechanical Systems, Department of Mechanical Engineering, National School of Engineers of Sfax (ENIS), University of Sfax, BP. 1173, 3038 Sfax, Tunisia ' Laboratory of Galenic Pharmacy, Faculty of Pharmacy – Monastir, Tunisia Avenue Avicenne, 5000 Monastir, Tunisia; Physics and Mechanical Materials (PMM) Unit, Analysis Laboratory of the Electromechanical System, Department of Mechanical Engineering, National School of Engineers of Sfax (ENIS), BP. 1173, 3038 Sfax, Tunisia ' Laboratory of Galenic Pharmacy, Faculty of Pharmacy of Monastir, Avenue Avicenne, 5000 Monastir, Tunisia ' Physics and Mechanical Materials (PMM) Unit, Analysis Laboratory of the Electromechanical Systems, Department of Mechanical Engineering, National School of Engineers of Sfax (ENIS), BP. 1173, 3038 Sfax, Tunisia

Abstract: The advancements and the innovations in the tablet presses have increased tablet failures that the most frequent is capping. The purpose of this paper was to examine the influence of binder in the mechanical behaviour of Trimebutine maleate tablet and to emphasise the power of its effect in capping tendency. Thus, we have developed in a first time two formulas of tablets which differ by the nature of their binder (gelatine and povidone). Then, we have carried out a comparative study of the compressional behaviour of the granules obtained by adopting the uniaxial compression technique followed by the Brazilian test. This study showed that data obtained from uniaxial compression and Brazilian test are correlated to mechanical materials properties of pharmaceutical mixtures and revealed that changing the nature of binder has a considerable effect in the mechanical behaviour of tablets and capping tendency.

Keywords: binders; pharmaceutical tablets; capping; uniaxial compression; Brazilian test; compressional behaviour; wet granulation; pharmaceutical mixtures; tensile strength; materials properties; tablet failures; Trimebutine maleate; gelatine; povidone; mechanical properties.

DOI: 10.1504/IJMMP.2012.051232

International Journal of Microstructure and Materials Properties, 2012 Vol.7 No.6, pp.532 - 551

Available online: 28 Dec 2012 *

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