Factors Influencing Drug Dissolution Characteristic from Hydrophilic Polymer Matrix Tablet
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چکیده
منابع مشابه
Development and in Vitro Evaluation of Once Daily Carbamazepine Matrix Tablet from Hydrophilic Polymers
The purpose of study was to develop and characterize once daily extended release matrix tablets of Carbamazepine (CBZ), an antiepileptic drug. Tablets were prepared by wet granulation method. Methocel K15M CR and Methocel K100LV CR polymers were used as rate retarding agents in fourteen formulations. The granules were evaluated for angle of repose, loose bulk density, tapped bulk density, compr...
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In this study,formulation of sustained-releasingmatrix tablet of bupropion 150 mg, using hydroxypropylmethylcellu lose(HPMC) 4000cps was evaluatedwith the aim of reducing the frequency of daily dose. The level of HPMC4000 ,polyvinylpyrolidone(PVP) and magnesium stearate(Mg St)was varied based on a 2level 3 factor factorial experimental designusing the release rate of the drug from the matrices ...
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Hydrophilic matrix tablets (matrices) for oral use are designed to hydrate on swallowing, and form a ‘gel’ layer of hydrated polymer at the tablet surface to control the rate of drug release during passage of the matrix through the gastrointestinal tract. During gastrointestinal transit, the matrices are reduced in size through surface erosion and dissolution. This reduces the probability of ex...
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Background and purpose: One of the methods of preparing controlled-release dosage forms is the incorporation of drug in a matrix containing a hydrophilic rate-controlling polymer. Drug-polymer ratio, drug particle size and HPMC particle size have been identified as modifiers of drug release. This study evaluated the relationship and influence of formulation factors such as drug-HPMC ratio and p...
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Failure to comply with drug regimes is prevalent amongst patients with epilepsy and the consequence of this is often an increased risk of further seizures. This paper describes the level of, and influences upon, non-compliance with antiepileptic drug (AED) treatment. A postal questionnaire was sent to an unselected, community-based population of patients with epilepsy. This instrument included ...
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ژورنال
عنوان ژورنال: Scientia Pharmaceutica
سال: 2007
ISSN: 0036-8709
DOI: 10.3797/scipharm.2007.75.147