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Controlled-release matrix tablets of ibuprofen using cellulose ethers and carrageenans: effect of formulation factors on dissolution rates.
Eur J Pharm Biopharm. 2005 Sep; 61(1-2):56-68.EJ

Abstract

The study was conducted to investigate the effects of carrageenans, and cellulose ethers on the drug release rates of ibuprofen controlled-release tablet matrices prepared by direct compression. Polymer blends containing carrageenans or cellulose ethers were used for the formulation and the effect of varying the polymer concentration on the release of the drug was studied. Other factors such as changes in surface topography of the matrices due to hydration were observed using a cryogenic scanning electron microscopy technique. Multiple regression analysis was used to predict the time for 50% release (t50) as a function of the concentration of the polymers used. Most of the formulations showed linear release profiles (r(2)>or=0.96-0.99) and sustained the release of ibuprofen over 12-16 h. The highest t50 (9.3 h) was for the formulation that contained a blend of 1:2 ratio of Viscarin and HPMC, while the lowest (3 h) was for the matrices that contained a 2:1 ratio of methylcellulose and Gelcarin. The majority of the matrix tablets that contained 10% polymer disintegrated prematurely. Of all the polymer blends that were investigated, the combination of Viscarin and HPMC gave almost linear release profiles over the entire range of concentration that was studied. The least effective combination was methylcellulose in combination with HPMC. Most of the formulations released ibuprofen by an anomalous (non-Fickian) transport mechanism, except those matrices that contained methylcellulose and Gelcarin (in a 1:1 and 1:2 ratio), which showed zero-order release.

Authors+Show Affiliations

Nerurkar J
Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, GA 30602, USA.
Jun HW
No affiliation info available
Price JC
No affiliation info available
Park MO
No affiliation info available

MeSH

CarrageenanCelluloseDrug CompoundingEthersIbuprofenMicroscopy, Electron, ScanningSolubilitySurface PropertiesTablets, Enteric-Coated

Pub Type(s)

Journal Article

Language

eng

PubMed ID

15893919

Citation

Nerurkar, Jayanti, et al. "Controlled-release Matrix Tablets of Ibuprofen Using Cellulose Ethers and Carrageenans: Effect of Formulation Factors On Dissolution Rates." European Journal of Pharmaceutics and Biopharmaceutics : Official Journal of Arbeitsgemeinschaft Fur Pharmazeutische Verfahrenstechnik E.V, vol. 61, no. 1-2, 2005, pp. 56-68.
Nerurkar J, Jun HW, Price JC, et al. Controlled-release matrix tablets of ibuprofen using cellulose ethers and carrageenans: effect of formulation factors on dissolution rates. Eur J Pharm Biopharm. 2005;61(1-2):56-68.
Nerurkar, J., Jun, H. W., Price, J. C., & Park, M. O. (2005). Controlled-release matrix tablets of ibuprofen using cellulose ethers and carrageenans: effect of formulation factors on dissolution rates. European Journal of Pharmaceutics and Biopharmaceutics : Official Journal of Arbeitsgemeinschaft Fur Pharmazeutische Verfahrenstechnik E.V, 61(1-2), 56-68.
Nerurkar J, et al. Controlled-release Matrix Tablets of Ibuprofen Using Cellulose Ethers and Carrageenans: Effect of Formulation Factors On Dissolution Rates. Eur J Pharm Biopharm. 2005;61(1-2):56-68. PubMed PMID: 15893919.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Controlled-release matrix tablets of ibuprofen using cellulose ethers and carrageenans: effect of formulation factors on dissolution rates. AU - Nerurkar,Jayanti, AU - Jun,H W, AU - Price,J C, AU - Park,M O, PY - 2004/07/19/received PY - 2004/11/09/revised PY - 2005/03/07/accepted PY - 2005/5/17/pubmed PY - 2005/11/11/medline PY - 2005/5/17/entrez SP - 56 EP - 68 JF - European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V JO - Eur J Pharm Biopharm VL - 61 IS - 1-2 N2 - The study was conducted to investigate the effects of carrageenans, and cellulose ethers on the drug release rates of ibuprofen controlled-release tablet matrices prepared by direct compression. Polymer blends containing carrageenans or cellulose ethers were used for the formulation and the effect of varying the polymer concentration on the release of the drug was studied. Other factors such as changes in surface topography of the matrices due to hydration were observed using a cryogenic scanning electron microscopy technique. Multiple regression analysis was used to predict the time for 50% release (t50) as a function of the concentration of the polymers used. Most of the formulations showed linear release profiles (r(2)>or=0.96-0.99) and sustained the release of ibuprofen over 12-16 h. The highest t50 (9.3 h) was for the formulation that contained a blend of 1:2 ratio of Viscarin and HPMC, while the lowest (3 h) was for the matrices that contained a 2:1 ratio of methylcellulose and Gelcarin. The majority of the matrix tablets that contained 10% polymer disintegrated prematurely. Of all the polymer blends that were investigated, the combination of Viscarin and HPMC gave almost linear release profiles over the entire range of concentration that was studied. The least effective combination was methylcellulose in combination with HPMC. Most of the formulations released ibuprofen by an anomalous (non-Fickian) transport mechanism, except those matrices that contained methylcellulose and Gelcarin (in a 1:1 and 1:2 ratio), which showed zero-order release. SN - 0939-6411 UR - https://www.unboundmedicine.com/medline/citation/15893919/Controlled_release_matrix_tablets_of_ibuprofen_using_cellulose_ethers_and_carrageenans:_effect_of_formulation_factors_on_dissolution_rates_ DB - PRIME DP - Unbound Medicine ER -