Influence of process and formulation parameters on dissolution and stability characteristics of Kollidon® VA 64 hot-melt extrudates.

abstract：:The purpose of this work was to measure viscosity of fluids at low microliter volumes by means of quartz crystal impedance analysis. To achieve this, a novel setup was designed that allowed for measurement of viscosity at volumes of 8 to 10 microL. The technique was based on the principle of electromechanical coupling...

journal_title：AAPS PharmSciTech

authors： Saluja A,Kalonia DS

更新日期：2004-08-05 00:00:00

abstract：:The process of developing an old drug for new indications is now a widely accepted strategy of shortening drug development time, reducing drug costs, and improving drug availability, especially for rare and neglected diseases. In this mini-review, we highlighted the impact of drug delivery systems in the fulfillment o...

journal_title：AAPS PharmSciTech

authors： Czech T,Lalani R,Oyewumi MO

更新日期：2019-02-15 00:00:00

abstract：:The aim of this study was to formulate a new delivery system for ecological pesticides by the incorporation of Artemisia arborescens L essential oil into solid lipid nanoparticles (SLN). Two different SLN formulations were prepared following the high-pressure homogenization technique using Compritol 888 ATO as lipid a...

journal_title：AAPS PharmSciTech

authors： Lai F,Wissing SA,Müller RH,Fadda AM

更新日期：2006-01-03 00:00:00

abstract：:The purpose of this study was to develop formulations and systematically evaluate in vitro performances of buccoadhesive patches of propranolol hydrochloride using the hydrophobic polymer Eudragit L-100 as the base matrix. The hydrophilic polymers Carbopol 934 and polyvinyl pyrrolidone (PVP) K30 were incorporated into...

journal_title：AAPS PharmSciTech

authors： Patel VM,Prajapati BG,Patel MM

更新日期：2007-06-22 00:00:00

abstract：:Spironolactone is a drug derived from sterols that exhibits an incomplete oral absorption due to its low water solubility and slow dissolution rate. In this study, formulations of spironolactone with four disintegrants named as croscarmellose sodium, crospovidone, sodium starch glycolate and microcrystalline cellulose...

journal_title：AAPS PharmSciTech

authors： Rojas J,Guisao S,Ruge V

更新日期：2012-12-01 00:00:00

abstract：:Formulation effects on the entrapment of beclometasone dipropionate (BDP) in liposomes generated by hydration of proliposomes were studied, using the high-density dispersion medium deuterium oxide in comparison to deionized water (DW). Proliposomes incorporating BDP (2 mol% of the lipid phase consisting of soya phosph...

journal_title：AAPS PharmSciTech

authors： Khan I,Yousaf S,Subramanian S,Alhnan MA,Ahmed W,Elhissi A

更新日期：2018-01-01 00:00:00

abstract：:For the prediction of the air and product temperatures, the product moisture, and the air humidity during a coating process in a Bohle Lab-Coater, a model was developed. The purpose of this work was to determine the limit moisture, the critical moisture, and the constant for the exchange rate between both zones and to...

journal_title：AAPS PharmSciTech

authors： Page S,Baumann KH,Kleinebudde P

更新日期：2006-05-05 00:00:00

abstract：:A hydroxyethylcellulose-poly(acrylic acid) (HEC-PAA) lyomatrix was developed for ganciclovir (GCV) intestine targeting to overcome its undesirable degradation in the stomach. GCV was encapsulated within the HEC-PAA lyomatrix prepared by lyophilization. Conventional tablets were also prepared with identical GCV concent...

journal_title：AAPS PharmSciTech

authors： Mabrouk M,Mulla JA,Kumar P,Chejara DR,Badhe RV,Choonara YE,du Toit LC,Pillay V

更新日期：2016-10-01 00:00:00

abstract：:The present work explores inner structuration of in situ gelling system consisting of glyceryl monooleate (GMO) and oleic acid (OA). The system under study involves investigation of microstructural changes which are believed to govern the pharmaceutical performance of final formulation. The changes which are often ter...

journal_title：AAPS PharmSciTech

authors： Patil SS,Venugopal E,Bhat S,Mahadik KR,Paradkar AR

更新日期：2015-10-01 00:00:00

abstract：:The interactions with and effects of five chemically distinct, bioactive phenolic compounds on the lipid bilayers of model dipalmitoylphosphatidylcholine (DPPC) liposomes were investigated. Complementary analytical techniques, including differential scanning calorimetry (DSC) and phosphorus and proton nuclear magnetic...

journal_title：AAPS PharmSciTech

authors： Malekar SA,Sarode AL,Bach AC 2nd,Worthen DR

更新日期：2016-12-01 00:00:00

abstract：:The purpose of this research was to improve the solubility and therefore dissolution and bioavailability of triamterene, a poorly water soluble diuretic, by complexation with beta-cyclodextrin. Triamterene has been reported to show low bioavailability after oral administration, with wide intersubject variation. This s...

journal_title：AAPS PharmSciTech

authors： Mukne AP,Nagarsenker MS

更新日期：2004-03-29 00:00:00

abstract：:Hypertension shows circadian blood pressure rhythms (day-night pattern) that urge the delivery of antihypertensive drugs at the right time in the desired levels. Thus, a bilayered core-in-cup buccoadhesive tablet was formulated that immediately releases olmesartan, to give a burst effect, and controls azelnidipine rel...

journal_title：AAPS PharmSciTech

authors： Rashad AA,Nageeb El-Helaly S,Abd El Rehim RT,El-Gazayerly ON

更新日期：2019-12-10 00:00:00

abstract：:The present investigation concerns with the development and optimization of an in situ forming formulation using 3(3) full factorial design experimentation. Metformin, an antidiabetic drug with upper part of gastrointestinal tract as absorption window was used as a model drug. The formulations were designed with an ob...

journal_title：AAPS PharmSciTech

authors： Nagarwal RC,Srinatha A,Pandit JK

更新日期：2009-01-01 00:00:00

abstract：:Next to the coating formulation, process conditions play important roles in determining coating quality. This study aims to develop an operational window that separates layering from agglomeration regimes and, furthermore, the one that leads to the best coating quality in a fluidized bed coater. The bed relative humid...

journal_title：AAPS PharmSciTech

authors： Laksmana FL,Hartman Kok PJ,Vromans H,Frijlink HW,Van der Voort Maarschalk K

更新日期：2009-01-01 00:00:00

abstract：:The present study evaluates the antioxidant activity of the flavonol quercetin, and its functional stability as a raw material and when added in formulations. The iron-chelating activity was determined using the bathophenanthroline assay, and the functional stability was evaluated with the antilipoperoxidative assay. ...

journal_title：AAPS PharmSciTech

authors： Casagrande R,Georgetti SR,Verri WA Jr,Jabor JR,Santos AC,Fonseca MJ

更新日期：2006-02-03 00:00:00

abstract：:Celecoxib (CXB) is a poorly aqueous solubility sulfonamide non-steroidal anti-inflammatory drug (NSAID). Hence, the formulation of CXB was selected for solubilization and bioavailability. To find out suitable formulation for microemulsion, the solubility of CXB in triacetin (oil phase), Tween 80 (surfactant), and Tran...

journal_title：AAPS PharmSciTech

authors： Cao M,Ren L,Chen G

更新日期：2017-08-01 00:00:00

abstract：:Bimatoprost is widely used for the management of glaucoma. Currently, it is delivered via eye drop solution, which is highly inefficient due to low bioavailability. To control the release of ocular drugs, contact lenses are used by scientists. However, the conventional soaking method showed high burst release due to a...

journal_title：AAPS PharmSciTech

authors： Yan F,Liu Y,Han S,Zhao Q,Liu N

更新日期：2020-01-13 00:00:00

abstract：:Biowaivers are recommended for immediate-release solid oral dosage forms using dissolution testing as a surrogate for in vivo bioequivalence studies. Several guidance are currently available (the World Health Organization (WHO), the US FDA, and the EMEA) where the conditions are described. In this study, definitions, ...

journal_title：AAPS PharmSciTech

authors： Reddy NH,Patnala S,Löbenberg R,Kanfer I

更新日期：2014-10-01 00:00:00

abstract：:The aim of the present study was to develop and evaluate a buccal adhesive tablet containing ondansetron hydrochloride (OH). Special punches and dies were fabricated and used while preparing buccal adhesive tablets. The tablets were prepared using carbopol (CP 934), sodium alginate, sodium carboxymethylcellulose low v...

journal_title：AAPS PharmSciTech

authors： Hassan N,Khar RK,Ali M,Ali J

更新日期：2009-01-01 00:00:00

abstract：:Cyclodextrins (CDs) are used in oral pharmaceutical formulations, by means of inclusion complexes formation, with the following advantages for the drugs: (1) solubility, dissolution rate, stability, and bioavailability enhancement; (2) to modify the drug release site and/or time profile; and (3) to reduce or prevent g...

journal_title：AAPS PharmSciTech

authors： Salústio PJ,Pontes P,Conduto C,Sanches I,Carvalho C,Arrais J,Marques HM

更新日期：2011-12-01 00:00:00

abstract：:The addition of polysorbate 20 (T20) is required to achieve "sink" conditions during a dissolution test for tablets with candesartan cilexetil (CC). Polysorbate 20 (0.35%-0.7% w/w) added to 0.05 mol/L of phosphate buffer pH 6.5 dramatically increased the apparent solubility of the drug from 0.8 μg/ml even to 353 μg/ml...

journal_title：AAPS PharmSciTech

authors： Hoppe K,Sznitowska M

更新日期：2014-10-01 00:00:00

abstract：:The effects of electron beam or gamma-irradiation on technological performances (capsule hardness, expressed as deforming work and dissolution time) of empty 2-shell capsules made of gelatin or hydroxypropylmethylcellulose (HPMC) were studied. Capsule structural changes induced by radiation treatment were investigated...

journal_title：AAPS PharmSciTech

authors： Cilurzo F,Selmin F,Minghetti P,Montanari L,Lenardi C,Orsini F,Poletti G

更新日期：2005-12-01 00:00:00

abstract：:This investigation aimed to develop nimesulide (NMS)-loaded poly(lactic-co-glycolic acid) (PLGA)-based nanoparticulate formulations as a biodegradable polymeric drug carrier to treat rheumatoid arthritis. Polymeric nanoparticles (NPs) were prepared with two different nonionic surfactants, vitamin E d-α-tocopheryl poly...

journal_title：AAPS PharmSciTech

authors： Turk CT,Oz UC,Serim TM,Hascicek C

更新日期：2014-02-01 00:00:00

abstract：:The study is designed to formulate, optimize, and evaluate astaxanthin (ASTA)-loaded nanostructured lipid carrier (NLC) with an aim to improve its stability, water solubility, skin permeability and retention and reduce drug-related side effects. ASTA was extracted from Haematococcus pluvialis. ASTA-NLC was formulated ...

journal_title：AAPS PharmSciTech

authors： Geng Q,Zhao Y,Wang L,Xu L,Chen X,Han J

更新日期：2020-11-11 00:00:00

abstract：:A near-infrared (NIR) spectroscopic method to determine content uniformity of a large, thick tablet using an approach that could facilitate future validations has been developed. A CT ibuprofen 800-mg tablet weighs about 1150 mg and is about 18.6 mm wide and 7.6 mm thick. The FT NIR spectrometer was optimized for tran...

journal_title：AAPS PharmSciTech

authors： Ramirez JL,Bellamy MK,Romañac RJ

更新日期：2001-07-12 00:00:00

abstract：:This study examined the mechanical (hardness, compressibility, adhesiveness, and cohesiveness) and rheological (zero-rate viscosity and thixotropy) properties of polyethylene glycol (PEG) gels that contain different ratios of Carbopol 934P (CP) and polyvinylpyrrolidone K90 (PVP). Mechanical properties were examined us...

journal_title：AAPS PharmSciTech

authors： Tan YT,Peh KK,Al-Hanbali O

更新日期：2000-08-17 00:00:00

abstract：:The present study focuses on the development and characterization of nanosuspension of a poorly soluble drug, silver sulfadiazine (SSD) incorporated in Aloe vera gel (AV-gel) for improving its therapeutic efficacy. The SSD solution in ammonia was subjected to nanoprecipitation in surfactant solution and particle size ...

journal_title：AAPS PharmSciTech

authors： Barkat MA,Harshita,Ahmad I,Ali R,Singh SP,Pottoo FH,Beg S,Ahmad FJ

更新日期：2017-11-01 00:00:00

abstract：:Vemurafenib is a poorly soluble, low permeability drug that has a demonstrated need for a solubility-enhanced formulation. However, conventional approaches for amorphous solid dispersion production are challenging due to the physiochemical properties of the compound. A suitable and novel method for creating an amorpho...

journal_title：AAPS PharmSciTech

authors： Ellenberger DJ,Miller DA,Kucera SU,Williams RO 3rd

更新日期：2018-07-01 00:00:00

abstract：:Pentoxifylline (PTX), an anti-hemorrhage drug used in the treatment of intermittent claudication, is extensively metabolized by the liver resulting in a reduction of the therapeutic levels within a short duration of time. Self-nano-emulsifying drug delivery system (SNEDDS) is well reported to enhance the bio-absorptio...

journal_title：AAPS PharmSciTech

authors： Shailendrakumar AM,Ghate VM,Kinra M,Lewis SA

更新日期：2020-04-21 00:00:00

abstract：:Poly(propylene succinate) (PPSu) polymers of average molecular weights from 2,800 to 13,100 g/mol were synthesized and characterized with regard to crystallinity, thermal properties, and cytocompatibility. Higher molecular weight samples exhibited lower degree of crystallinity and melted at lower temperatures. Melting...

journal_title：AAPS PharmSciTech

authors： Bikiaris DN,Papageorgiou GZ,Papadimitriou SA,Karavas E,Avgoustakis K

更新日期：2009-01-01 00:00:00