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Bioimpacts. 2012;2(4):175-87. doi: 10.5681/bi.2012.027. Epub 2012 Nov 4.

The role of oral controlled release matrix tablets in drug delivery systems.

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1
Medway School of Pharmacy, University of Kent, Chatham, ME4 4TB, Kent, UK.

Abstract

Formulations that are able to control the release of drug have become an integral part of the pharmaceutical industry. In particular oral drug delivery has been the focus of pharmaceutical research for many years. This type of drug delivery has been at the centre of research due to its many benefits over conventional dosage. The focus of this review is on matrix tablets due to their widely use and simplicity of the formulation. This includes the discussion of various types of matrix tablets and factors affecting the drug release from these formulations. The mechanism of drug release from HPMC matrices is also discussed.

KEYWORDS:

Diffusion; Erosion; Kinetics of Drug Release; Matrix Tablet; Sustained Release

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