Development of a nanofiltration process to improve the stability of a novel anti-MRSA carbapenem drug candidate.

abstract：:The pharmaceutical preparation, chromatography, and biological distribution of a series of new chemical analogs of palmitic acid and diethylenetriaminepentaacetic acid, ethylenediaminetetraacetic acid, or diethylenetriamine are described. The biological distribution in rabbits 30 min after intravenous administration o...

journal_title：Journal of pharmaceutical sciences

authors： Karesh SM,Eckelman WC,Reba RC

更新日期：1977-02-01 00:00:00

abstract：:The cyclopropyl amine moiety in GSK2879552 (1) degrades hydrolytically in high pH conditions. This degradation pathway was observed during long-term stability studies and impacted the shelf life of the drug product. This article describes the work to identify the degradation impurities, elucidate the degradation mecha...

journal_title：Journal of pharmaceutical sciences

authors： Campbell JM,Lee M,Clawson J,Kennedy-Gabb S,Bethune S,Janiga A,Kindon L,Leach KP

更新日期：2019-09-01 00:00:00

abstract：:The transition temperature, T(t), of polymorphs is estimated from both their heats of solution and solubilities (or intrinsic dissolution rates) determined at any one temperature (e.g., ambient). At a given temperature, T, the enthalpy difference, DeltaH, between polymorphs, I and II, is equal to the difference betwee...

journal_title：Journal of pharmaceutical sciences

authors： Gu CH,Grant DJ

更新日期：2001-09-01 00:00:00

abstract：:A novel process based on solvent extraction was developed to produce drug-loaded polyanhydride microspheres for controlled-release applications. The technique consists of adding a chloroform solution of polyanhydride and drug into a stirred silicone oil phase containing suspended droplets of surfactant. No chemical re...

journal_title：Journal of pharmaceutical sciences

authors： Bindschaedler C,Leong K,Mathiowitz E,Langer R

更新日期：1988-08-01 00:00:00

abstract：:Flecainide acetate forms acetic acid solvates with 0.5 and 2 acetic acid molecules. Powder X-ray diffraction, differential thermal analysis/thermogravimetric, infrared, and potentiometric titration were used to determine the composition of solvates. Flecainide acetate hemisolvate with acetic acid decomposes to form a ...

journal_title：Journal of pharmaceutical sciences

authors： Veldre K,Actiņs A,Eglite Z

更新日期：2011-02-01 00:00:00

abstract：:A series of molecular complexes, both co-crystals and salts, of a triazole drug-alprazolam-with carboxylic acids, boric acid, boronic acids, and phenols have been analyzed with respect to heterosynthons present in the crystal structures. In all cases, the triazole ring behaves as an efficient hydrogen bond acceptor wi...

journal_title：Journal of pharmaceutical sciences

authors： Varughese S,Azim Y,Desiraju GR

更新日期：2010-09-01 00:00:00

abstract：:The present study aimed to develop optimized quercetin (QT)-loaded self-nanoemulsifying drug delivery system (SNEDDS) that offers protective effect against liver damage. Solubility study of QT in different oils, surfactants, and cosurfactants was performed. Ternary phase mixtures of the selected components were constr...

journal_title：Journal of pharmaceutical sciences

authors： Ahmed OA,Badr-Eldin SM,Tawfik MK,Ahmed TA,El-Say KM,Badr JM

更新日期：2014-02-01 00:00:00

abstract：:The synthesis, characterization, and therapeutic evaluation of a series of partially esterified derivatives of pentetic (diethylenetriaminepentaacetic) acid are reported. These compounds were prepared in an attempt to promote increased decorporation of insoluble colloidal forms of plutonium, which are removed by pente...

journal_title：Journal of pharmaceutical sciences

authors： Guilmette RA,Parks JE,Lindenbaum A

更新日期：1979-02-01 00:00:00

abstract：:Nephropathic cystinosis is a rare autosomal recessive disease characterised by raised lysosomal levels of cystine in the cells of all the organs. It is treated by the 6-h oral administration of the aminothiol, cysteamine, which has an offensive taste and smell. In an attempt to reduce this frequency and improve the tr...

journal_title：Journal of pharmaceutical sciences

authors： Buchan B,Kay G,Matthews KH,Cairns D

更新日期：2012-10-01 00:00:00

abstract：:A Bayesian approach was developed to determine an amikacin dosage regimen to achieve the desired plasma concentrations for each patient. Statistical characteristics of pharmacokinetic parameters were first evaluated in a group of patients (reference population), which when combined with three individual plasma concent...

journal_title：Journal of pharmaceutical sciences

authors： Garraffo R,Iliadis A,Cano JP,Dellamonica P,Lapalus P

更新日期：1989-09-01 00:00:00

abstract：:Vitamin E tocopherol polyethylene glycol succinate (TPGS) is a non-ionic surface active agent, known to enhance the bioavailability of lipophilic compounds via wettability, solubility, and in some cases permeability enhancement. MK-0536 is an anti-retroviral drug with poor wettability and solubility and a high dose. B...

journal_title：Journal of pharmaceutical sciences

authors： Tatavarti A,Kesisoglou F

更新日期：2015-11-01 00:00:00

abstract：:The aim was to study a new method of dissolution in vitro, the "Bio-Dis" apparatus, and to compare it with the classical rotating bottle method. Several theophylline controlled-release drug dosage forms were studied. Dissolution testing was performed in increasing pH in standard conditions and after treatment with pea...

journal_title：Journal of pharmaceutical sciences

authors： Esbelin B,Beyssac E,Aiache JM,Shiu GK,Skelly JP

更新日期：1991-10-01 00:00:00

abstract：:Knowledge of slip or cleavage planes can facilitate the fundamental understanding of mechanical properties of organic crystals important to pharmaceutical operations, such as tableting and milling. Slip/cleavage planes were frequently assigned based on attachment energy calculation. These crystallographic planes can a...

journal_title：Journal of pharmaceutical sciences

authors： Sun CC,Kiang YH

更新日期：2008-08-01 00:00:00

abstract：:Experimental sulfadiazine tablets prepared by direct compression, using a commercially available direct compression tablet mass, were compared with experimental sulfadiazine tablets prepared by fluidized-bed granulation and commercially available sulfadiazine tablets USP. The values for friability and the time require...

journal_title：Journal of pharmaceutical sciences

authors： Ritschel WA,Erni W

更新日期：1977-10-01 00:00:00

abstract：:The pharmacokinetics of atropine in three healthy male volunteers after intravenous administration of 1.35 and 2.15 mg of the drug was determined. Pharmacodynamic effects of atropine were measured simultaneously. All the data were fitted to a novel integrated kinetic-dynamic model. Plasma concentrations of atropine an...

journal_title：Journal of pharmaceutical sciences

authors： Hinderling PH,Gundert-Remy U,Schmidlin O

更新日期：1985-07-01 00:00:00

abstract：:Safety evaluation of self-assembled polymeric micelles is important for biomedical involvement in drug delivery systems in the future. In this study, biodegradable monomethyl poly (ethylene glycol)-poly (ε-caprolactone)-poly (trimethylene carbonate) [MPEG-P(CL-co-TMC)] copolymer was synthesized and characterized by Fo...

journal_title：Journal of pharmaceutical sciences

authors： Yang X,Cao D,Wang N,Sun L,Li L,Nie S,Wu Q,Liu X,Yi C,Gong C

更新日期：2014-01-01 00:00:00

abstract：:The pharmacokinetic profiles of cimetropium bromide, after either intravenous injection of 10 mg or oral ingestion of 200 mg, were determined in eight healthy volunteers. After intravenous administration, the plasma levels and urinary excretion indicated that the drug is distributed and eliminated at a rapid rate (ter...

journal_title：Journal of pharmaceutical sciences

authors： Imbimbo BP,Daniotti S,Vidi A,Foschi D,Saporiti F,Ferrante L

更新日期：1986-07-01 00:00:00

abstract：:Solvent influences on the crystallization of polymorph and hydrate forms of the nootropic drug piracetam (2-oxo-pyrrolidineacetamide) were investigated from water, methanol, 2-propanol, isobutanol, and nitromethane. Crystal growth profiles of piracetam polymorphs were constructed using time-resolved diffraction snapsh...

journal_title：Journal of pharmaceutical sciences

authors： DeMatos LL,Williams AC,Booth SW,Petts CR,Taylor DJ,Blagden N

更新日期：2007-05-01 00:00:00

abstract：:A swellable matrix tablet is described which is partially coated with cellulose acetate (CA) to obtain a film having the shape of a cup, whose permeability to water and solutes was altered by mixing increasing amounts of poly(ethylene glycol) 400 (PEG). The drug-release mechanism from such systems was assessed by carr...

journal_title：Journal of pharmaceutical sciences

authors： Catellani PL,Colombo P,Peppas NA,Santi P,Bettini R

更新日期：1998-06-01 00:00:00

abstract：:Over the past few decades alternate routes of administration have gained significant momentum and attention, to complement approved drug products, or enable those that cannot be delivered by the oral or parenteral route. Intranasal, buccal/sublingual, pulmonary, and transdermal routes being the most promising non-inva...

journal_title：Journal of pharmaceutical sciences

authors： Mathias NR,Hussain MA

更新日期：2010-01-01 00:00:00

abstract：:A new mucoadhesive tablet, which releases natural active agents for pain reduction and rapid healing of canker sores, has been prepared and characterized. Adhesive tablets were prepared by compression molding of mixed powders of crosslinked polyacrylic acid and hydroxypropyl cellulose, absorbed with citrus oil and mag...

journal_title：Journal of pharmaceutical sciences

authors： Mizrahi B,Golenser J,Wolnerman JS,Domb AJ

更新日期：2004-12-01 00:00:00

abstract：:The in vitro uptake study was performed using the isolated cells of human oral mucosa, buccal and the dorsum of the tongue, to investigate the mechanisms of glucose uptake. The uptake of D-glucose was much larger in cells of the dorsum of the tongue than in buccal cells and was inhibited more extensively by 2-deoxy-D-...

journal_title：Journal of pharmaceutical sciences

authors： Oyama Y,Yamano H,Ohkuma A,Ogawara K,Higaki K,Kimura T

更新日期：1999-08-01 00:00:00

abstract：:The aim of this review is to describe the theoretical background lying behind the solid drug mechanochemical activation by cogrinding pointing out its advantages and drawbacks. A brief historical introduction precedes the discussion about the mechanisms leading to solid drug activation. This allows to clarify the conc...

journal_title：Journal of pharmaceutical sciences

authors： Colombo I,Grassi G,Grassi M

更新日期：2009-11-01 00:00:00

abstract：:Currently, conjunctivitis is treated by frequent high dose administration of sparfloxacin eye drop solution. However, the eye drops are inconvenient because of low bioavailability, short ocular drug residence time, and need of frequent instillation, which lead to patient noncompliance affecting the routine life style ...

journal_title：Journal of pharmaceutical sciences

authors： Ran W,Ma H,Li M

更新日期：2020-06-01 00:00:00

abstract：:An important part of pharmacokinetic research is fitting models to observed data and estimating the parameters in the model. In general, parameter estimation in pharmacokinetics is a subset of the general problem of nonlinear regression or parameter estimation in nonlinear regression models. The same criteria, algorit...

journal_title：Journal of pharmaceutical sciences

authors： Metzler CM

更新日期：1987-07-01 00:00:00

abstract：:A sensitive high-performance liquid chromatographic (HPLC) assay for N-acetylcysteine in human plasma and urine has been developed. The method employs a prechromatographic stage to produce the dinitrophenyl derivative of N-acetylcysteine, which is chromatographed on a 5-microns C18 bonded reverse-phase column using an...

journal_title：Journal of pharmaceutical sciences

authors： Lewis PA,Woodward AJ,Maddock J

更新日期：1984-07-01 00:00:00

abstract：:The particle sizing performance of a Next Generation Pharmaceutical Impactor (NGI) was compared to that of an Andersen cascade impactor (ACI). A single lot of Vanceril MDIs containing beclomethasone dipropionate (BDP) was used throughout. MDIs were sampled into NGI and ACI in accordance with USP recommendations, at 30...

journal_title：Journal of pharmaceutical sciences

authors： Kamiya A,Sakagami M,Hindle M,Byron PR

更新日期：2004-07-01 00:00:00

abstract：:A study of the pH of saliva produced by humans sucking hard candy lozenges containing zinc gluconate and citric acid demonstrated the probability that the formulation delivered an insignificant amount of the contained zinc as Zn2+. This could account for the negative results of several clinical studies of this lozenge...

journal_title：Journal of pharmaceutical sciences

authors： Zarembo JE,Godfrey JC,Godfrey NJ

更新日期：1992-02-01 00:00:00

abstract：:The objective of this study was to determine if a high Tg polymer (Eudragit(®) S100) could be used to stabilize amorphous domains of polyethylene oxide (PEO) and hence improve the stability of binary polymer systems containing celecoxib (CX). We propose a novel method of stabilizing the amorphous PEO solid dispersion ...

journal_title：Journal of pharmaceutical sciences

authors： Jones DS,Tian Y,Li S,Yu T,Abu-Diak OA,Andrews GP

更新日期：2016-10-01 00:00:00

abstract：:The aim of this article was to prepare a topical powder for the treatment of fungal infections, such as Candida intertrigo and tinea pedis. Thus, an econazole nitrate (ECO) formulation with improved drug dissolution and proper moisture adsorption was designed. ECO was melt with the mesoporous silicate MCM-41 (drug/MCM...

journal_title：Journal of pharmaceutical sciences

authors： Ambrogi V,Perioli L,Pagano C,Marmottini F,Moretti M,Mizzi F,Rossi C

更新日期：2010-11-01 00:00:00