Preparation and evaluation of an ispaghula based directly compressible matrixing agent for controlled release

M. N. V. Ravikumar and N. Kumar, Polymeric controlled drug delivery systems: Perspective issues and opportunities, Drug Dev. Ind. Pharm. 27 (2001) 1-30; DOI:10.1081/DDC-100000124.10.1081/DDC-100000124Search in Google Scholar

D. S. Hsieh, W. Rhine and R. Langer, Zero order controlled-release polymer matrices and macromolecules, J. Pharm. Sci. 72 (1983) 17-22; DOI:10.1002/jps.2600720105.10.1002/jps.2600720105Search in Google Scholar

M. C. Gohel, M. M. Patel and A. F. Amin, Development of modified release diltiazem HCl tablets using composite index to identify optimal formulation, Drug Dev. Ind. Pharm. 29 (2003) 565-574; DOI:10.1081/DDC-120018645.10.1081/DDC-120018645Search in Google Scholar

A. Mckenna and D. F. McCafferty, Effect of particle size on the compaction mechanism and tensile strength of tablets, J. Pharm. Pharmacol. 34 (1982) 347-351.Search in Google Scholar

R. L. Carr, Evaluating flow properties of solids, Chem. Eng. 72 (1965) 163-168.Search in Google Scholar

Unated States Pharmacopeia 24, National Formulary 19, USP Convention, Rockville, 2000.Search in Google Scholar

O. A. Odeku and J. T. Fell, Evaluation of Khaya gum as directly compressible matrix system for controlled release, J. Pharm. Pharmacol. 56 (2004) 1365-1370; DOI: 10.1211/0022357044652.10.1211/0022357044652Search in Google Scholar

H. Ho, H. Wang and M. Sheu, The evaluation of granulated excipients as matrix material for controlled delivery of captopril, J. Control. Release 49 (1997) 243-251; DOI: 10.1016/S0168-3659(97)00093-X.10.1016/S0168-3659(97)00093-XSearch in Google Scholar

H. Ladipus and N. G. Lordi, Drug release from compressed hydrophilic matrices, J. Pharm. Sci. 57 (1968) 1292-1301; DOI: 10.1002/jps.2600570803.10.1002/jps.2600570803Search in Google Scholar

T. Higuchi, Rate of release of medicaments from ointment bases containing drugs in suspension, J. Pharm. Sci. 50 (1961) 874-875; DOI: 10.1002/jps.2600501018.10.1002/jps.2600501018Search in Google Scholar

R. Korsmeyer, R. Gunny and N. Peppas, Mechanism of solute release from porous hydrophilic polymers, Int. J. Pharm. 15 (1983) 25-35; DOI: 10.1016/0378-5173(83)90064-9.10.1016/0378-5173(83)90064-9Search in Google Scholar

A. W. Hixson and J. H. Crowell, Dependence of reaction velocity upon surface and agitation, Ind. Eng. Chem. 23 (1931) 923-931; DOI: 10.1021/ie50260a018.10.1021/ie50260a018Search in Google Scholar

F. Langenbucher, Linearisation of dissolution rate curves by the Weibull distribution, J. Pharm. Pharmacol. 24 (1972) 979-981.10.1111/j.2042-7158.1972.tb08930.x4146531Search in Google Scholar

M. Bamba and F. Puisieusx, Release mechanisms in gel forming sustained release preparation, Int. J. Pharm. 2 (1979) 307-315; DOI: 10.1016/0378-5173(79)90037-1.10.1016/0378-5173(79)90037-1Search in Google Scholar