Dielectric constants of solid-liquid and liquid-liquid systems as a function of composition.

abstract：:Naltrexone (NTX) is an opioid antagonist used for treatment of narcotic dependence and alcoholism. Transdermal naltrexone delivery is desirable to help improve patient compliance. The purpose of this study was to increase the delivery rate of NTX across human skin by using lipophilic alkyl ester prodrugs. Straight-cha...

journal_title：Journal of pharmaceutical sciences

authors： Stinchcomb AL,Swaan PW,Ekabo O,Harris KK,Browe J,Hammell DC,Cooperman TA,Pearsall M

更新日期：2002-12-01 00:00:00

abstract：:A method is reported for studying the effects of several factors at room temperature on the oxygen permeability of soft gelatin capsule shell films. The method involves the use of a permeability cell assembly and the spectrophotometric determïnation of oxygen with an alkaline pyrogallic acid solution. Factors investig...

journal_title：Journal of pharmaceutical sciences

authors： Hom FS,Veresh SA,Ebert WR

更新日期：1975-05-01 00:00:00

abstract：:A new parameter, the kinetic ratio, is suggested for estimating product potency during storage under ambient warehouse temperatures. Actual warehouse temperature data were integrated using Arrhenius kinetics, and the resulting potency errors, due both to the integration method and to temperature averaging, were evalua...

journal_title：Journal of pharmaceutical sciences

authors： Scher M

更新日期：1980-03-01 00:00:00

abstract：:An assay for gold in whole blood of arthritis patients was developed using the graphite furnace atomic absorption spectrophotometer. This method involves no pretreatment of the whole blood except for simple dilution, thereby eliminating some variables and saving laboratory time and expense. ...

journal_title：Journal of pharmaceutical sciences

authors： Barrett MJ,DeFries R,Henderson WM

更新日期：1978-09-01 00:00:00

abstract：:The hypothermic response following intraperitoneal doses (6.25, 12.5, and 25 mg/kg) of cobaltous chloride was investigated in Swiss albino mice. The magnitude and duration of rectal temperature depression were dose related. In each case, maximal hypothermia was evident within 30 min after injection. Body temperature d...

journal_title：Journal of pharmaceutical sciences

authors： Burke DH

更新日期：1978-06-01 00:00:00

abstract：:Citric acid anhydrate (CAA) and paracetamol (PARA), prepared as crystalline physical mixtures and as amorphous blends, were studied using (13)C solid-state cross polarization magic angle spinning (CPMAS) NMR. Amorphous blends showed significant line broadening from the conformational distribution as compared to the cr...

journal_title：Journal of pharmaceutical sciences

authors： Schantz S,Hoppu P,Juppo AM

更新日期：2009-05-01 00:00:00

abstract：:Two high-performance liquid chromatographic (HPLC) assay procedures were developed for the determination of salicylamide and its metabolites in serum, urine, and saliva. One method involves reverse-phase ion-pair chromatography and UV detection, and is used to determine salicylamide, salicylamide glucuronide, and sali...

journal_title：Journal of pharmaceutical sciences

authors： Morris ME,Levy G

更新日期：1983-06-01 00:00:00

abstract：:Dissolution profiles are classified in accordance with the shape of fractional dissolution rate function. This function is constant in time for the classical first-order model and, in this case, the dissolution is described by a monoexponential function. Therefore, any deviation of the fractional dissolution rate from...

journal_title：Journal of pharmaceutical sciences

authors： Lánský P,Weiss M

更新日期：2003-08-01 00:00:00

abstract：:An alumina (Al(2)O(3))-steroid-ethanol model is used for forced degradation testing of corticosteroids to predict chemical stability and degradation products in pressurized metered-dose inhaler (pMDI) solution formulations. The model involves an ethanolic solution of a test steroid with Al(2)O(3), stressed at elevated...

journal_title：Journal of pharmaceutical sciences

authors： Wu ZZ,Thatcher ML,Lundberg JK,Ogawa MK,Jacoby CB,Battiste JL,Ledoux KA

更新日期：2012-06-01 00:00:00

abstract：:The thermodynamic relationship between FI and FII of ethyl 4-aminobenzoate (benzocaine) has been investigated. Slurry conversion experiments show that the transition temperature below which FI is stable is located between 302 K-303 K (29 °C-30 °C). The polymorphs FI and FII have been characterised by infrared spectros...

journal_title：Journal of pharmaceutical sciences

authors： Cheuk D,Svärd M,Rasmuson ÅC

更新日期：2020-11-01 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 number of biopharmaceuticals are available as lyophilized formulations along with a prefilled syringe (PFS) containing water for injection (WFI). Submicron- and micron-size droplets of lubricating silicone oil (SO) applied to the inner surface of the PFS barrel might migrate into the WFI, to which protein pharmaceut...

journal_title：Journal of pharmaceutical sciences

authors： Krayukhina E,Yokoyama M,Hayashihara KK,Maruno T,Noda M,Watanabe H,Uchihashi T,Uchiyama S

更新日期：2019-07-01 00:00:00

abstract：:Pelrinone HCl is essentially nonhygroscopic. The pH-solubility profile exhibits a U-shaped curve, while the octanol-water partition coefficient-pH profile shows a bell-shaped curve. Two ionizable functions, with a pKa1 value of 4.71 and a pKa2 value of 8.94, produce the cationic and anionic forms, respectively. A weak...

journal_title：Journal of pharmaceutical sciences

authors： Hajdu J,Adams G,Lee HK

更新日期：1988-11-01 00:00:00

abstract：:A rapid and accurate method for the quantitative determination of the extent and ratio of amino and carboxyl group trimethylsilylation of 6-aminopenicillanic acid, 7-amino-3-methyl-delta3-cephem-4-carboxylic acid, and 7-amino-3-acetoxymethyl-delta3-cephem-4-carboxylic acid is presented. The method utilizes NMR spectro...

journal_title：Journal of pharmaceutical sciences

authors： Bortesi F,Cavalli S,Mangia A

更新日期：1977-12-01 00:00:00

abstract：:The pharmacokinetics of gacyclidine enantiomers, a noncompetitive N-methyl-D-aspartate (NMDA) antagonist, were studied in plasma and spinal cord extracellular fluid (ECF) after experimental spinal cord injury in rats. Spinal cord trauma was produced by introducing an inflatable balloon in the dorsal subdural space. Up...

journal_title：Journal of pharmaceutical sciences

authors： Hoizey G,Kaltenbach ML,Dukic S,Lamiable D,Lallemand A,Millart H,D'Arbigny P,Vistelle R

更新日期：2001-01-01 00:00:00

abstract：:Pharmaceutical materials, crystalline and amorphous, sorb water from the atmosphere, which affects critical factors in the development of drugs, such as the selection of drug substance crystal form, compatibility with excipients, dosage form selection, packaging, and product shelf-life. It is common practice to quanti...

journal_title：Journal of pharmaceutical sciences

authors： Sacchetti M

更新日期：2014-09-01 00:00:00

abstract：:The adsorption of quinidine onto kaolin was studied as a function of pH in aqueous solutions in which the ionic strength was adjusted to 0.1. The interaction of quinidine with pectin also was investigated in water and in phosphate buffer; the buffer pH and ionic strength were adjusted to 6.5 and 0.1, respectively. The...

journal_title：Journal of pharmaceutical sciences

authors： Bucci AJ,Myre SA,Tan HS,Shenouda LS

更新日期：1981-09-01 00:00:00

abstract：:Fifteen pyrimidine-related compounds were evaluated for their ability to inhibit enzymatic degradation of 5-fluoro-2'-deoxyuridine (FUdR). Acyclothymidine [5-methyl-1-(2'-hydroxyethoxymethyl)uracil] showed the highest inhibitory effect on the phosphorolytic degradation of FUdR in various tissue homogenates derived fro...

journal_title：Journal of pharmaceutical sciences

authors： Kawaguchi T,Saito M,Saneyoshi M

更新日期：1988-11-01 00:00:00

abstract：:The present study describes the development of an orally disintegrating tablet containing a non-water-soluble drug delivery system. A model system was applied to evaluate the effect of different-sized particles on tablet characteristics. Cellets were incorporated into tablets prepared by freeze-drying from a 100 mg/mL...

journal_title：Journal of pharmaceutical sciences

authors： Stange U,Führling C,Gieseler H

更新日期：2013-06-01 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：:Previous studies have shown that protein storage stability in freeze-dried l-arginine-based systems improved in the presence of chloride ions. However, chloride ions reduced the glass transition temperature of the freeze concentrate (Tg') and made freeze drying more challenging. In this study, l-arginine was freeze dr...

journal_title：Journal of pharmaceutical sciences

authors： Stärtzel P,Gieseler H,Gieseler M,Abdul-Fattah AM,Adler M,Mahler HC,Goldbach P

更新日期：2016-10-01 00:00:00

abstract：:As reported in the previous commentary (Ishii-Watabe et al., J Pharm Sci 2017), the Japanese biopharmaceutical research group is promoting collaborative multilaboratory studies to evaluate and standardize new methodologies for biopharmaceutical characterization and quality control. We have conducted the studies and he...

journal_title：Journal of pharmaceutical sciences

authors： Ishii-Watabe A,Shibata H,Suetomo H,Ikeda Y,Telikepalli S,Kiyoshi M,Hayashi Y,Muto T,Tanaka Y,Ueda S,Iwura T,Saitoh S,Aoyama M,Harazono A,Hyuga M,Goda Y,Torisu T,Uchiyama S

更新日期：2020-05-01 00:00:00

abstract：:The delivery of active agents to the skin by liposome carriers is an interdisciplinary topic of great interest today. Data accumulated over the last decade strongly point to important advantages of these drug delivery systems. A symposium devoted to classic and new approaches in the use of liposomal systems was organi...

journal_title：Journal of pharmaceutical sciences

authors： Touitou E,Junginger HE,Weiner ND,Nagai T,Mezei M

更新日期：1994-09-01 00:00:00

abstract：:In an attempt to explain the mechanism of protein stabilization conferred by detergents, we investigated the effect of Tween 80 on aggregation of bovine serum albumin (BSA) using circular dichroism (CD) and native gel electrophoresis. CD thermal scans showed that BSA denatures at about 54 degrees C in 20 mM Tris, pH 7...

journal_title：Journal of pharmaceutical sciences

authors： Arakawa T,Kita Y

更新日期：2000-05-01 00:00:00

abstract：:The objectives of this work are to explore the pi-pi complexation of amitriptyline with pi electron-deficient aromatic rings and demonstrate the feasibility of pi-pi complexation for overdosed drug detoxification. Water-soluble oligochitosan was chemically modified with dinitrobenzenesulfonyl groups to induce selectiv...

journal_title：Journal of pharmaceutical sciences

authors： Lee DW,Flint J,Morey T,Dennis D,Partch R,Baney R

更新日期：2005-02-01 00:00:00

abstract：:The direct photoisomerization of (E)-4-(1-imidazoylmethyl)-cinnamic acid (IMC), a thromboxane synthetase inhibitor, to its (Z)-isomer at pH 2.0 was decelerated by beta-cyclodextrin (beta-CyD) and heptakis(2,6-di-O-methyl)-beta-cyclodextrin (DM-beta-CyD). The photostationary composition [(Z)-isomer:IMC ratio] was shift...

journal_title：Journal of pharmaceutical sciences

authors： Hirayama F,Utsuki T,Uekama K,Yamasaki M,Harata K

更新日期：1992-08-01 00:00:00

abstract：:Nanospheres with D,L-lactide/glycolide copolymer (PLGA) were prepared as a biodegradable and biocompatible polymeric carrier for peptide drugs by a novel spontaneous emulsification solvent diffusion method. Nafarelin acetate (NA), a luteinizing hormone-releasing hormone analogue, was employed as a model peptide drug t...

journal_title：Journal of pharmaceutical sciences

authors： Niwa T,Takeuchi H,Hino T,Kunou N,Kawashima Y

更新日期：1994-05-01 00:00:00

abstract：:The estimates of infinity values obtained using Prony's method are shown to be subject to significant error arising from small errors in the assigned sample times. The error of the estimate may be reduced by increasing the time interval between samples. ...

journal_title：Journal of pharmaceutical sciences

authors： Newburger J,Stavchansky S,Pearlman RS

更新日期：1980-10-01 00:00:00

abstract：:Peptidomimetic drugs have favorable bioavailability owing to H(+)/peptide transporter 1 (PEPT1) located in the intestine. Sartans are commonly used and likely coadministered with peptidomimetic drugs in the clinic; however, in vivo interactions between sartans and peptidomimetic drugs have not been systemically unders...

journal_title：Journal of pharmaceutical sciences

authors： Huo X,Liu Q,Wang C,Meng Q,Sun H,Peng J,Ma X,Sun P,Liu K

更新日期：2014-02-01 00:00:00

abstract：:The effect of the oral dosing volume (DV) on both gastric emptying and intestinal absorption was examined by analyzing the gastrointestinal disposition of a model solute, L-glucose, in rats. The amount of 14C-labeled L-glucose in the gastric and intestinal contents of sacrificed rats was measured at various times afte...

journal_title：Journal of pharmaceutical sciences

authors： Yuasa H,Numata W,Ozeki S,Watanabe J

更新日期：1995-04-01 00:00:00