نتایج جستجو برای: release matrix tablet

تعداد نتایج: 594442  

Journal: :Colloids and surfaces. B, Biointerfaces 2016
Kofi Asare-Addo Enes Supuk Mohammed H Mahdi Adeola O Adebisi Elijah Nep Barbara R Conway Waseem Kaialy Hiba Al-Hamidi Ali Nokhodchi

The aim of the study was to evaluate the effect of systematic agitation, increasing ionic strength and gel strength on drug release from a gel-forming matrix (HPMC E10M, E4M and E50LV) using USP type III Bio-Dis apparatus with theophylline as a model drug. The triboelectric charging; particle sizing, water content, true density and SEM of all the hypromellose grades, theophylline and formulated...

The purpose of this research was to prepare a floating matrix tablet containing domperidone as a model drug. Polyethylene oxide (PEO) and hydroxypropyl methylcellulose (HPMC) were evaluated for matrix-forming properties. A simplex lattice design was applied to systemically optimize the drug release profile. The amounts of PEO WSR 303, HPMC K15M and sodium bicarbonate were selected as independen...

2010
Md. Asaduzzaman Md. Elias-Al-Mamun Md. Saiful Islam Reza-Ul Jalil

Controlled release (CR) Ciprofloxacin (CFX) matrix tablets were prepared using Ciprofloxacin betaine as a model drug and Kollidon SR as a core matrix former. Kollidon SR embedded CFX matrix tablets were then characterized with Carbopol 974P NF, Cetyl alcohol, Hydroxypropyl methyl cellulose (HPMC 4.5 cps). CFX release was 74% after 10 hours dissolution in 0.01 N HCl solution from the tablets con...

2009
Susmita Laila Tasnuva Haque Md. Mesbah Uddin Talukder Ishtiaq Ahmed Muhammad Rashedul Islam Md. Habibur Rahman

In this present study an attempt has been made to evaluate glyceryl monostearate (GMS) as a rate retarding material to sustain the release ciprofloxacin hydrochloride from the matrix tablet. The solubility of ciprofloxacin hydrochloride was studied. The physical parameters of the prepared tablets were also evaluated. Release kinetics of ciprofloxacin hydrochloride from this sustained release ma...

2017
Burak Çelik

The aim of this study was to design and optimize risperidone (RIS) mucoadhesive buccal tablets for systemic delivery as an alternative route. Direct compression method was used for the preparation of buccal tablets, and screening studies were conducted with different polymers to determine their effects on tablet characteristics. Carbopol® (CP) and sodium alginate (SA) were selected as two polym...

Journal: :Chemical & pharmaceutical bulletin 2009
Chisato Makino Hidetoshi Sakai Akira Okano Akira Yabuki

We designed a single unit type tablet formulation containing nateglinide to decrease both postprandial blood glucose level (PBG) and fasting blood glucose level (FBG) in normal beagle dogs. The tablet was a dry coated tablet comprising both a core tablet (an erosion matrix tablet: a controlled release portion(nateglinide: 90 mg)) and an outer shell (an immediate release portion (nateglinide: 60...

Journal: :Drug development and industrial pharmacy 2017
Feng Zhang Fan Meng Zhi Yuan Wang Watson Na

The interaction between copovidone and Carbopol 907 is pH dependent. When the pH of an aqueous solution fell below pH 4.5, a water-insoluble complex began to form and precipitate. This complex resulted from a hydrogen-bond-induced interaction between the carboxylic groups in Carbopol 907 and the carbonyl groups of N-vinylpyrrolidone repeat units in copovidone. Consisting of these two polymers a...

Journal: :research in pharmaceutical sciences 0
vt thakkar pa shah tg soni my parmar mc gohel tr gandhi

the objective of this work was to develop and evaluate the levofloxacin hemihydrate floating formulations (f1-f9). selection of optimized batch was done by model dependent approach and novel mathematical approach. f1-f9 batches were prepared by direct compression method using gelucire 43/01 (hydrophobic) and hydroxypropylmethylcellulose (hydrophilic) polymer in different ratios. the floating ta...

2010
Ritesh Kumar

Floating matrix tablets of metformin hydrochloride were developed and evaluated for increase bioavailability by increasing gastric residence time and sustained release of drug on the upper part of gastrointestinal tract thereby diminishing side effects and enhanced patient compliance. Metformin hydrochloride, an oral antidiabetic having narrow absorption window in the upper part of gastrointest...

2011
DM Patel BK Patel HA Patel CN Patel

The objective of the present study was to evaluate the effect of sintering condition on matrix formation and subsequent drug release from polymer matrix tablet for controlled release. The present study highlights the use of a microwave oven for the sintering process in order to achieve more uniform heat distribution with reduction in time required for sintering. We could achieve effective sinte...

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