Controlled and complete release of a model poorly water-soluble drug, prednisolone, from hydroxypropyl methylcellulose matrix tablets using (SBE)(7m)-beta-cyclodextrin as a solubilizing agent.

abstract：:(+-)-Carbovir [(+-)-9-[4 alpha-(hydroxymethyl)-cyclopent-2-ene-1 alpha-yl]guanine; NSC 614846] is a novel carbocyclic nucleoside analogue which has been shown to be a potent and selective inhibitor of HIV in vitro. As part of an effort to develop a parenteral formulation for subsequent clinical and toxicological evalu...

journal_title：Journal of pharmaceutical sciences

authors： Anderson BD,Chiang CY

更新日期：1990-09-01 00:00:00

abstract：:A GLC assay to quantitate the methaqualone metabolite 2-methyl-3-(2-hydroxymethylphenyl)-4(3H)-quinazolinone was developed. Standard curves were linear, and recovery of the metabolite from tissue homogenates averaged 89%. In vitro metabolism of methaqualone by the 10,000Xg supernatant fraction of rat liver homogenate ...

journal_title：Journal of pharmaceutical sciences

authors： Hindmarsh KW,Hamon NW,LeGatt DF,Wallace SM

更新日期：1978-11-01 00:00:00

abstract：:Small particles of two steroids, cholesteryl acetate and beta-sitosterol, were prepared by the following technique. The steroid was dissolved in an organic solvent, which was emulsified in water in the presence of surfactant, thus giving a water-continuous emulsion. As the organic solvent was evaporated, the steroid p...

journal_title：Journal of pharmaceutical sciences

authors： Sjöström B,Bergenståhl B,Kronberg B

更新日期：1993-06-01 00:00:00

abstract：:An F(ab')2 fragment of an IgG has been spray-dried on a bench-top machine to examine the presence of insoluble particulates in the redissolved powder product. Preliminary experiments showed that treatment of the F(ab')2 in aqueous solution in a water bath at 65°C for 1 h produced fragmentation and also insoluble parti...

journal_title：Journal of pharmaceutical sciences

authors： Lassner P,Adler M,Lee G

更新日期：2014-04-01 00:00:00

abstract：:The transport rate constant of a drug partitioned in a two-phase system from an aqueous to an organic phase (k1obs) and vice versa (k2obs) is a function of the partition coefficient P and of a solvent system-dependent parameter beta. Drug transport is shown to be independent of molecular structure for a number of arbi...

journal_title：Journal of pharmaceutical sciences

authors： van de Waterbeemd H,van Bakel P,Jansen A

更新日期：1981-09-01 00:00:00

abstract：:Injectable controlled-release formulations are of increasing interest for the treatment of chronic diseases. This study aims to develop and characterize a polymeric matrix for intramuscular or subcutaneous injection, consisting of two biocompatible polymers, particularly suitable for formulating poorly soluble drugs. ...

journal_title：Journal of pharmaceutical sciences

authors： Meeus J,Chen X,Scurr DJ,Ciarnelli V,Amssoms K,Roberts CJ,Davies MC,van Den Mooter G

更新日期：2012-09-01 00:00:00

abstract：:A combination of coformer screening and modeling, followed by characterization using calorimetry, structure elucidation, and solubility led to the identification of novel crystalline forms of the hepatitis C protease inhibitor, telaprevir. The lead crystalline form, a cocrystalline solid of telaprevir with 4-aminosaly...

journal_title：Journal of pharmaceutical sciences

authors： Stavropoulos K,Johnston SC,Zhang Y,Rao BG,Hurrey M,Hurter P,Topp EM,Kadiyala I

更新日期：2015-10-01 00:00:00

abstract：:This article shows how milling can be used to explore the phase diagram of pharmaceuticals. This process has been applied to sulindac. A short milling has been found to trigger a polymorphic transformation between form II and form I upon heating which is not seen in the nonmilled material. This possibility was clearly...

journal_title：Journal of pharmaceutical sciences

authors： Latreche M,Willart JF,Guerain M,Hédoux A,Danède F

更新日期：2019-08-01 00:00:00

abstract：:The pharmacokinetics of tamsulosin (TAM) was investigated using male Sprague-Dawley rats in which plasma alpha(1)-acid glycoprotein (alpha(1)-AGP) levels were elevated by the subcutaneous injection of 0.2 mL/kg of turpentine oil. alpha(1)-AGP levels increased about eight times after turpentine oil treatment, causing a...

journal_title：Journal of pharmaceutical sciences

authors： Matsushima H,Watanabe T,Higuchi S

更新日期：2000-04-01 00:00:00

abstract：:The dissolution behavior and absorption of mefenamic acid following oral and rectal administration from drug:egg albumin solid dispersions have been studied in comparison with those of the drug alone. The interaction of drug with egg albumin in aqueous solution and solid state were examined by solubility analysis, dia...

journal_title：Journal of pharmaceutical sciences

authors： Imai T,Nohdomi K,Acartürk F,Otagiri M

更新日期：1991-05-01 00:00:00

abstract：:Sustained release of ferrous sulfate (FeSO4) from gum arabica pellets has been achieved for 7 h. Release is further sustained for 12 to 600 h by coating the pellets with polyvinyl acetate and ethylene vinyl acetate, respectively. An increase in the amount of gum arabica in the pellets decreases the rate of release due...

journal_title：Journal of pharmaceutical sciences

authors： Batra V,Bhowmick A,Behera BK,Ray AR

更新日期：1994-05-01 00:00:00

abstract：:A new three-step synthesis of 4-amino-3-hydroxybutyric acid from an inexpensive starting material and under mild reaction conditions is described. Crotonic acid was brominated by the Wohl-Ziegler reaction to 4-bromocrotonic acid, which, in turn, was converted with ammonium hydroxide into 4-aminocrotonic acid. This com...

journal_title：Journal of pharmaceutical sciences

authors： Pinza M,Pifferi G

更新日期：1978-01-01 00:00:00

abstract：:The p-aminobenzyl analogues (8a and 8b, respectively) of the cardioselective beta-adrenergic receptor antagonists practolol and atenolol were prepared from the corresponding phenoxymethyloxiranes in 30 and 13% yields, respectively. The dissociation constants for the beta-adrenergic receptor were measured in membrane p...

journal_title：Journal of pharmaceutical sciences

authors： Jones GS Jr,Bylund DB,Hanson RN

更新日期：1992-04-01 00:00:00

abstract：:The reaction of chlorthalidone with methanol to give the corresponding methyl ether was investigated. The kinetics are pseudo-first-order in chlorthalidone, but the observed pseudo-first-order rate constants show an unexpected dependence on the initial chlorthalidone concentration, attributable to the presence of trac...

journal_title：Journal of pharmaceutical sciences

authors： Pandit NK,Hinderliter JS

更新日期：1985-08-01 00:00:00

abstract：:To evaluate the regional delivery of conventional aerosol medications, a new whole-lung computational fluid dynamics modeling approach was applied for metered dose inhaler (MDI) and dry powder inhaler (DPI) aerosols delivered to healthy and constricted airways. The computational fluid dynamics approach included comple...

journal_title：Journal of pharmaceutical sciences

authors： Walenga RL,Longest PW

更新日期：2016-01-01 00:00:00

abstract：:The disposition of the beta-blocking drug talinolol is controlled by P-glycoprotein in man. Because talinolol is marketed as a racemate, we reevaluated the serum-concentration time profiles of talinolol of a previously published study with single intravenous (30 mg) and repeated oral talinolol (100 mg for 14 days) bef...

journal_title：Journal of pharmaceutical sciences

authors： Zschiesche M,Lemma GL,Klebingat KJ,Franke G,Terhaag B,Hoffmann A,Gramatté T,Kroemer HK,Siegmund W

更新日期：2002-02-01 00:00:00

abstract：:Human papillomavirus (HPV) virus-like-particles (VLPs) produced by recombinant expression systems are promising vaccine candidates for prevention of cervical cancers as well as genital warts. At high protein concentrations, HPV VLPs, comprised of the viral capsid protein L1 and expressed and purified from yeast, are p...

journal_title：Journal of pharmaceutical sciences

authors： Shi L,Sanyal G,Ni A,Luo Z,Doshna S,Wang B,Graham TL,Wang N,Volkin DB

更新日期：2005-07-01 00:00:00

abstract：:Though there is an advantage in using the higher solubility amorphous state in cases where low solubility limits absorption, physical instability poses a significant barrier limiting its use in solid oral dosage forms. Unlike chemical instability, where useful accelerated stability testing protocols are common, no met...

journal_title：Journal of pharmaceutical sciences

authors： Bhugra C,Pikal MJ

更新日期：2008-04-01 00:00:00

abstract：:It is hypothesized that ferrocene (FC)-loaded nanocarriers (FC-NCs) are safe label-free contrast agents for cochlear biodistribution study by transmission electron microscopy (TEM). To test this hypothesis, after engineering, the poly(epsilon-caprolactone)/polyglycolide NCs are tested for stability with various types ...

journal_title：Journal of pharmaceutical sciences

authors： Youm I,Musazzi UM,Gratton MA,Murowchick JB,Youan BC

更新日期：2016-10-01 00:00:00

abstract：:The relative sweetness, onset times, and durations of response of D-glucose, D-xylose, D-quinovose, D-galactose, L-arabinose, and D-fucose were determined at four temperatures. The results can be interpreted by simple concepts of intramolecular hydrogen bonding which indicate that the so-called gamma-function of the t...

journal_title：Journal of pharmaceutical sciences

authors： Birch GG,Dziedzic SZ,Shallenberger RS,Lindley MG

更新日期：1981-03-01 00:00:00

abstract：:In this study, powder surface imaging was utilized in evaluation of particle size-related segregation behavior of granules during vibration and tableting processes. Altogether, eight granule batches were manufactured using a fluidized bed granulator. The particle size distribution of each batch was measured with sieve...

journal_title：Journal of pharmaceutical sciences

authors： Lakio S,Hatara J,Tervakangas H,Sandler N

更新日期：2012-06-01 00:00:00

abstract：:Inclusion complexes between beta-cyclodextrin derivatives and 1, 2-dithione-3-thiones were studied in aqueous solution and in the solid state. Phase solubility study was used to evaluate the complexation in solution, at 37 degrees C, of three cyclodextrins, i. e., beta-cyclodextrin (betaCD), hydroxypropyl-beta-cyclode...

journal_title：Journal of pharmaceutical sciences

authors： Dollo G,Le Corre P,Chollet M,Chevanne F,Bertault M,Burgot JL,Le Verge R

更新日期：1999-09-01 00:00:00

abstract：:The chemical shifts of the methyl groups of 2,4-dimethylbenzo[g]quinoline are defined with respect to concentration, showing that the methyl resonances are reversed from their expected positions in concentrations normally used in NMR spectroscopy. The phenomenon is explained in terms of the probably "fixation" of bond...

journal_title：Journal of pharmaceutical sciences

authors： Born JL,Harsin CE

更新日期：1977-08-01 00:00:00

abstract：:Since the discovery of liposomes or lipid vesicles derived from self-forming enclosed lipid bilayers upon hydration, liposome drug delivery systems have played a significant role in formulation of potent drugs to improve therapeutics. Currently, most of these liposome formulations are designed to reduce toxicity and t...

journal_title：Journal of pharmaceutical sciences

authors： Lian T,Ho RJ

更新日期：2001-06-01 00:00:00

abstract：:A highly sensitive assay for the measurement of all-trans-retinoic acid (tretinoin) and 13-cis-retinoic acid (isotretinoin) has been developed. Collected plasma samples were protein precipitated with 2-propanol followed by solid phase extraction. The retinoic acids were subsequently derivatized to their pentafluoroben...

journal_title：Journal of pharmaceutical sciences

authors： Lehman PA,Franz TJ

更新日期：1996-03-01 00:00:00

abstract：:The elementary osmotic pump is a new delivery system for drugs or other active agents; it delivers the agent by an osmotic process at a controlled rate. Control resides in the: (a) water permeation characteristics of a semipermeable membrane surrounding the formulated agent, and (b) osmotic properties of the formulati...

journal_title：Journal of pharmaceutical sciences

authors： Theeuwes F

更新日期：1975-12-01 00:00:00

abstract：:The insidious nature of Zika virus (ZIKV) infections can have a devastating consequence for fetal development. Recent reports have highlighted that chloroquine (CQ) is capable of inhibiting ZIKV endocytosis in brain cells. We applied pharmacokinetic modeling to develop a predictive model for CQ exposure to identify an...

journal_title：Journal of pharmaceutical sciences

authors： Olafuyi O,Badhan RKS

更新日期：2019-01-01 00:00:00

abstract：:Solvent-induced 3 frameworks (the monohydrate, methanol solvate, and dimethyl formamide [DMF] solvate) of an anticancer drug, 7-ethyl-10-hydroxycamptothecin (SN38), were constructed. The crystal structures of the 3 pseudopolymorphs were characterized by single-crystal X-ray diffraction technique for the first time. Cr...

journal_title：Journal of pharmaceutical sciences

authors： Fang L,Wang L,Yao C,Song S,Wu Z,Tao X

更新日期：2017-10-01 00:00:00

abstract：:Quantitative prediction of unbound drug fraction (fu) is essential for scaling pharmacokinetics through physiologically based approaches. However, few attempts have been made to evaluate the projection of fu values under pathological conditions. The primary objective of this study was to predict fu values (n = 105) of...

journal_title：Journal of pharmaceutical sciences

authors： Li GF,Yu G,Li Y,Zheng Y,Zheng QS,Derendorf H

更新日期：2018-07-01 00:00:00

abstract：:A commercial dispersive Raman spectrometer operating at 785 nm with a CCD detector was used to acquire spectra of USP reference materials inside amber USP vials. The laser and collection beams were directed through the bottom of the vials, resulting in a 60% loss of signal. The Raman shift was calibrated with a 4-acet...

journal_title：Journal of pharmaceutical sciences

authors： McCreery RL,Horn AJ,Spencer J,Jefferson E

更新日期：1998-01-01 00:00:00