Particle Engineering of Excipients for Direct Compression: Understanding the Role of Material Properties

Author(s): Sharad Mangal, Felix Meiser, David Morton, Ian Larson.

Journal Name: Current Pharmaceutical Design

Volume 21 , Issue 40 , 2015


Tablets represent the preferred and most commonly dispensed pharmaceutical dosage form for administering active pharmaceutical ingredients (APIs). Minimizing the cost of goods and improving manufacturing output efficiency has motivated companies to use direct compression as a preferred method of tablet manufacturing. Excipients dictate the success of direct compression, notably by optimizing powder formulation compactability and flow, thus there has been a surge in creating excipients specifically designed to meet these needs for direct compression. Greater scientific understanding of tablet manufacturing coupled with effective application of the principles of material science and particle engineering has resulted in a number of improved direct compression excipients. Despite this, significant practical disadvantages of direct compression remain relative to granulation, and this is partly due to the limitations of direct compression excipients. For instance, in formulating high-dose APIs, a much higher level of excipient is required relative to wet or dry granulation and so tablets are much bigger. Creating excipients to enable direct compression of high-dose APIs requires the knowledge of the relationship between fundamental material properties and excipient functionalities. In this paper, we review the current understanding of the relationship between fundamental material properties and excipient functionality for direct compression.

Keywords: Tableting, excipients, inter-particle interaction, flow, compactability, direct compression.

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Article Details

Year: 2015
Page: [5877 - 5889]
Pages: 13
DOI: 10.2174/1381612821666151008125117
Price: $58

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