High-performance liquid chromatographic determination of 4-amino-5-chloro-N-[(1-ethylimidazolin-2-yl)methyl]-2-methoxybenzamide and its metabolite in biological fluids. Applications in pharmacokinetic studies.

abstract：:The effect of dietary polyphenols on the intestinal glucuronidation and absorption of a model phenolic drug, alpha-naphthol (alpha-NA), was studied in isolated rat small intestine. (-)-Epicatechin significantly inhibited the glucuronidation of alpha-NA. Chrysin, (-)-epigallocatechin galleate (EGCG), and quercetin decr...

journal_title：Journal of pharmaceutical sciences

authors： Mizuma T,Awazu S

更新日期：2004-09-01 00:00:00

abstract：:A new, specific, and useful approach for the analysis of benzalkonium chloride is presented. Reversed-phase high-pressure liquid chromatography is used to determine benzalkonium chloride in an ophthalmic system at the presevative level of 0.004%. Since the method separates each homolog, it can be extended to determine...

journal_title：Journal of pharmaceutical sciences

authors： Meyer RC

更新日期：1980-10-01 00:00:00

abstract：:The purpose of this study was to investigate the feasibility of delivering sinomenine hydrochloride (SH) transdermally using composite dissolving microneedles (DM) which integrated with liquid crystals (H2). The fabricated SH-loaded composite DM was evaluated for their appearance, mechanical strength, irritation, and ...

journal_title：Journal of pharmaceutical sciences

authors： Gui Z,Wu X,Wang S,Cao Y,Wan J,Shan Q,Yang Z,Zhang J,Gui S

更新日期：2017-12-01 00:00:00

abstract：:Particulate matter present in drug products intended for parenteral administration to patients is typically monitored and controlled in the finished drug product to minimize potential risks to patients. In contrast to particulates found in drug products, the current study evaluated particulates representative of mater...

journal_title：Journal of pharmaceutical sciences

authors： Pollo M,Mehta A,Torres K,Thorne D,Zimmermann D,Kolhe P

更新日期：2019-07-01 00:00:00

abstract：:Application of low-frequency ultrasound has been shown to enhance transdermal transport of drugs (low-frequency sonophoresis). In this paper, we show that the efficacy of low-frequency ultrasound in enhancing transdermal transport can be further increased by its combination with sodium lauryl sulfate (SLS), a well-kno...

journal_title：Journal of pharmaceutical sciences

authors： Mitragotri S,Ray D,Farrell J,Tang H,Yu B,Kost J,Blankschtein D,Langer R

更新日期：2000-07-01 00:00:00

abstract：:The oral dose metabolism of dilazep dihydrochloride [tetrahydro-1H-1,4-diazepine-1,4(5H)-dipropanol 3,4,5-trimethoxybenzoate] was examined in six hypertensive patients receiving a single oral dose of 600 mg of dilazep (3-3.8 mg/kg BW). Blood was collected at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, and 24 h after administratio...

journal_title：Journal of pharmaceutical sciences

authors： Sambhi MP,Kannan R,Thananopavarn C,Ookhtens M,Gudenzi M

更新日期：1989-04-01 00:00:00

abstract：:The mechanism of how poly(vinyl alcohol-co-acrylic acid-co-methyl methacrylate) (PVA copolymer) stabilizes an amorphous drug was investigated. Solid dispersions of PVA copolymer, poly(vinyl pyrrolidone) (PVP), and poly(vinyl pyrrolidone-co-vinyl acetate) (PVPVA) with indomethacin (IMC) were prepared. The glass transit...

journal_title：Journal of pharmaceutical sciences

authors： Ueda H,Aikawa S,Kashima Y,Kikuchi J,Ida Y,Tanino T,Kadota K,Tozuka Y

更新日期：2014-09-01 00:00:00

abstract：:Evidence is provided for the existence of a second discrete chemical form of meropenem at clinically relevant concentrations prepared from the marketed formulation of the drug. Proton and carbon-13 NMR spectra in D2O, coupled with tandem mass spectroscopy (MS/MS) and cross polarization/magic angle spinning (CP-MAS) NM...

journal_title：Journal of pharmaceutical sciences

authors： Almarsson O,Kaufman MJ,Stong JD,Wu Y,Mayr SM,Petrich MA,Williams JM

更新日期：1998-05-01 00:00:00

abstract：:The analysis of corticosteroid prodrugs in pharmacokinetic (PK) studies poses the risk of overestimation of corticosteroid concentrations due to in vitro hydrolysis of prodrugs after sample collection. This study tests the effectiveness of enzyme inhibitors as stabilizers for betamethasone sodium phosphate (BSP) in pr...

journal_title：Journal of pharmaceutical sciences

authors： Samtani MN,Schwab M,Nathanielsz PW,Jusko WJ

更新日期：2004-03-01 00:00:00

abstract：:We have previously reported the development of novel nanocapsules made of polyarginine (PArg) specifically designed for the delivery of small anticancer drugs into cells. Our goal, in this work, has been to investigate the potential of these nanocarriers for oral delivery of peptide anticancer drugs. To reach this obj...

journal_title：Journal of pharmaceutical sciences

authors： Lollo G,Gonzalez-Paredes A,Garcia-Fuentes M,Calvo P,Torres D,Alonso MJ

更新日期：2017-02-01 00:00:00

abstract：:Adsorption isotherms for the diazepam-activated carbon system in simulated intestinal fluid (SIF), without pancreatin, and in SIF with different percentages of ethanol were determined as were the solubilities of diazepam in SIF and in SIF with different percentages of ethanol. The surface area of the activated carbon ...

journal_title：Journal of pharmaceutical sciences

authors： Wurster DE,Alkhamis KA,Matheson LE

更新日期：2003-10-01 00:00:00

abstract：:Nasal administration as a means of delivering therapeutic agents preferentially to the brain has gained significant recent interest. While some substrates appear to be delivered directly to the brain via this route, the mechanisms governing overall brain uptake and exposure remain unclear. Some substrates utilize the ...

journal_title：Journal of pharmaceutical sciences

authors： Graff CL,Pollack GM

更新日期：2005-06-01 00:00:00

abstract：:SPRYCEL® (Dasatinib) is a Biopharmaceutical Classification System II weakly basic drug that exhibits strong pH-dependent solubility. Dasatinib is currently presented in 2 drug product formulations as an adult immediate release tablet and a pediatric powder for oral suspension. A bioequivalence study comparing the form...

journal_title：Journal of pharmaceutical sciences

authors： Vaidhyanathan S,Wang X,Crison J,Varia S,Gao JZH,Saxena A,Good D

更新日期：2019-01-01 00:00:00

abstract：:Uncharged, lipophilic, low molecular weight copper complexes labeled with generator-produced copper-62 are of interest as potential radiopharmaceutials for imaging the brain with positron emission tomography (PET). We report here the synthesis and biodistribution of a series of [67Cu]copper(II) complexes with tetraden...

journal_title：Journal of pharmaceutical sciences

authors： John EK,Bott AJ,Green MA

更新日期：1994-04-01 00:00:00

abstract：:A sensitive, specific high-performance liquid chromatographic procedure was developed for the determination of plasma ethmozin levels. Basic plasma samples were partitioned with methylene chloride. The organic extract was washed with water and then evaporated to dryness under reduced pressure. The residue was redissol...

journal_title：Journal of pharmaceutical sciences

authors： Whitney CC,Weinstein SH,Gaylord JC

更新日期：1981-04-01 00:00:00

abstract：:Jet-milling as the common way for micronization of drugs shows several disadvantages. Drug powder properties are decisive for pulmonary use because, besides a small particle size, a good deagglomeration behavior is required. In this study, several anti-inflammatory drugs [beclomethasone-17,21-dipropionate (BDP), betam...

journal_title：Journal of pharmaceutical sciences

authors： Rasenack N,Steckel H,Müller BW

更新日期：2003-01-01 00:00:00

abstract：:This study aims at investigating factors influencing humidity-induced recrystallization of amorphous lactose, produced by co-spray drying with particles of cellulose nanocrystals or sodium montmorillonite. In particular, the focus is on how the nanoparticle shape and surface properties influence the nanometer to micro...

journal_title：Journal of pharmaceutical sciences

authors： Hellrup J,Mahlin D

更新日期：2017-01-01 00:00:00

abstract：:A procedure for the simultaneous analysis of diphenylhydantoin and phenobarbital in plasma by high-pressure liquid chromatography was developed and evaluated. Separation is effected on a porous particle silicic acid column with chloroform dioxane-isopropanol-acetic acid (310:9.7:1.0:0.1 by volume) and is monitored at ...

journal_title：Journal of pharmaceutical sciences

authors： Atwell SH,Green VA,Haney WG

更新日期：1975-05-01 00:00:00

abstract：:Nanocrystals have emerged as a potential formulation strategy to eliminate the bioavailability-related problems by enhancing the initial dissolution rate and moderately super-saturating the thermodynamic solubility. This review contains an in-depth knowledge of, the processing method for formulation, an accurate quant...

journal_title：Journal of pharmaceutical sciences

authors： Shah DA,Murdande SB,Dave RH

更新日期：2016-01-01 00:00:00

abstract：:Reactive high gravity controlled precipitation (HGCP) was carried out to produce salbutamol sulphate (SS) particles suitable for inhalation. Aqueous solutions of free salbutamol base and sulphuric acid were mixed intensely inside a HGCP reactor to form the particles. Spray drying was employed to obtain dry powders. Ph...

journal_title：Journal of pharmaceutical sciences

authors： Hu T,Chiou H,Chan HK,Chen JF,Yun J

更新日期：2008-02-01 00:00:00

abstract：:The effect of variable protein binding (taken as independent parameter) on pharmacological activity of drugs is considered in terms of the exposure or the steady state concentration of unbound drug at targeted tissue. Based on the application of the parallel tube or dispersion models it is shown that for the most comm...

journal_title：Journal of pharmaceutical sciences

authors： Berezhkovskiy LM

更新日期：2010-04-01 00:00:00

abstract：:The pre-equilibrium capillary zone electrophoretic (pre-eq CZE) method to determine association constants of active anionic forms of antithyroid drugs: 6-n-propyl-2-thiouracil (PTU), 6-methyl-2-thiouracil (MTU), 2-thiouracil (TU) with bovine serum albumin (BSA) under physiological pH 7.4 has been developed for the fir...

journal_title：Journal of pharmaceutical sciences

authors： Chernov'yants MS,Dolinkin AO,Chernyshev AV,Khohlov EV,Golovanova EG

更新日期：2010-03-01 00:00:00

abstract：:With the introduction of Quality by Design (QbD) to the pharmaceutical industry, there has been an increased focus on understanding the nature of particles and composites, with the aim of understanding and modeling how they interact in complex systems, leading to robust dosage forms. Particle characterization tools ha...

journal_title：Journal of pharmaceutical sciences

authors： Gamble JF,Tobyn M,Hamey R

更新日期：2015-05-01 00:00:00

abstract：:The estimation of aqueous solubilities of organic nonelectrolytes by the General Solubility Equation (GSE) as proposed by Valvani and Yalkowsky (1980) is used in this study. The data and assumptions on which the GSE are based are reevaluated, and the equation is revised. The revised GSE is validated on a set of 580 ph...

journal_title：Journal of pharmaceutical sciences

authors： Jain N,Yalkowsky SH

更新日期：2001-02-01 00:00:00

abstract：:The aims of the present study were to formulate stable onion phases of the biodegradable surfactant PEG-8 Distearate (PEG8DS) and evaluate application of the onion phases in encapsulating sumatriptan succinate, a BCS class III potent antimigraine drug. Drug loaded and placebo onion phases were prepared by shearing lyo...

journal_title：Journal of pharmaceutical sciences

authors： Redkar M,Hassan PA,Aswal V,Devarajan P

更新日期：2007-09-01 00:00:00

abstract：:Vehicle effects may be caused by thermodynamic effects and by specific (penetration enhancing) effects. To investigate the effects of various lipophilic vehicles on drug penetration, an in vivo permeability study was conducted with methyl nicotinate as the model drug. The drug was dissolved in the respective vehicles ...

journal_title：Journal of pharmaceutical sciences

authors： Leopold CS,Lippold BC

更新日期：1995-02-01 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：:Current drug level predictions in nonlinear pharmacokinetics are based on specific pharmacokinetic models in contrast to the model-independent (structureless), dose-linearity, and superposition principles used in linear pharmacokinetics. Such model-dependent methods may not provide reliable predictions due to their in...

journal_title：Journal of pharmaceutical sciences

authors： Veng-Pedersen P

更新日期：1984-06-01 00:00:00

abstract：:A modified NF method for the quantitative determination of pentaerythritol tetranitrate is reported. A solution of powder is made directly from the dosage form in glacial acetic acid and is then reacted with phenoldisulfonic acid TS. The proposed method saves approximately 75% of the time required with the NF method. ...

journal_title：Journal of pharmaceutical sciences

authors： Gupta VD

更新日期：1978-05-01 00:00:00

abstract：:Coralyne analogues, isomers, and related alkaloids were examined as inhibitors of reverse transcriptase of RNA tumor viruses in the presence of polyriboadenylic acid-oligodeoxythymidylic acid (Poly rA.oligo dT), polydeoxyadenylic acid-oligodeoxythymidylic acid (Poly dA.oligo dT), polyribocytidylic acid-oligodeoxyguany...

journal_title：Journal of pharmaceutical sciences

authors： Sethi ML

更新日期：1985-08-01 00:00:00