abstract：:An exsorption technique which can assess the transport of a drug from blood to the intestinal lumen was used to study the effects of glucose and to determine the presence of segmental differences in drug transport across the rat small intestinal membrane following intravenous drug administration. The drugs used in the...

journal_title：Journal of pharmaceutical sciences

authors： Johno I,Kitazawa S

更新日期：1985-03-01 00:00:00

abstract：:New dihydropyridine in equilibrium pyridinium salt-type redox carrier systems were developed in which the drug is linked via the ring nitrogen atom of nicotinamide. The rate of oxidation of the dihydropyridine forms, and thus the overall and brain-specific distribution of the corresponding 3-carbamoyl-1-carbamoylalkyl...

journal_title：Journal of pharmaceutical sciences

authors： Bodor N,AbdelAlim AM

更新日期：1985-03-01 00:00:00

abstract：:Inhibition of endogenous prostacyclin and thromboxane biosynthesis by aspirin is critically dose-dependent in humans. Gastrointestinal and hepatic hydrolysis may limit systemic availability of aspirin, especially in low doses, perhaps contributing to the biochemical selectivity of aspirin. Existing analytical methods ...

journal_title：Journal of pharmaceutical sciences

authors： Pedersen AK,FitzGerald GA

更新日期：1985-02-01 00:00:00

abstract：:Mixture response-surface methodology can be used as a technique to predict solubility in mixed solvent systems. The present report shows that if the intent is to predict solubility in nonideal solutions, mixture response-surface methodology is a better technique than one which assumes a particular mechanism to hold tr...

journal_title：Journal of pharmaceutical sciences

authors： Ochsner AB,Belloto RJ Jr,Sokoloski TD

更新日期：1985-02-01 00:00:00

abstract：:The effects of cyclazocine, a narcotic agonist/antagonist, on the uptake, metabolism, and turnover of norepinephrine in rat brains were studied. Cyclazocine significantly depressed the accumulation of intracisternally administered [3H]norepinephrine and the formation of 3,4-[3H]dihydroxymandelic acid but did not alter...

journal_title：Journal of pharmaceutical sciences

authors： Russi GD

更新日期：1985-01-01 00:00:00

abstract：:The binding of Cu2+ and Ni2+ to bovine, dog, and human serum albumin has been studied by the 35Cl NMR probe technique. The number of primary copper sites were estimated to be 1.3 for human serum albumin, 3.1 for bovine serum albumin, and 6.6 for dog serum albumin. A similar number of primary nickel sites was determine...

journal_title：Journal of pharmaceutical sciences

authors： Mohanakrishnan P,Chignell CF,Cox RH

更新日期：1985-01-01 00:00:00

abstract：:Recently developed techniques were applied in a preformulation program to select a compound and a suitable salt for use in a one-month toxicological test. The program showed that valuable information can be obtained prior to the choice of a compound as a candidate for a solid-dosage form. Information about the physica...

journal_title：Journal of pharmaceutical sciences

authors： Graffner C,Johansson ME,Nicklasson M,Nyqvist H

更新日期：1985-01-01 00:00:00

abstract：:A series of 2-(alpha-hydroxyacetyl)pyridine thiosemicarbazones was synthesized as potential antimalarial and antibacterial agents. Their synthesis was achieved by the condensation of N4-mono- or N4,N4-disubstituted thiosemicarbazides with 2-(alpha-hydroxyacetyl)pyridine. The latter was prepared by selective bromine ox...

journal_title：Journal of pharmaceutical sciences

authors： Klayman DL,Lin AJ,Hoch JM,Scovill JP,Lambros C,Dobek AS

更新日期：1984-12-01 00:00:00

abstract：:99mTc-N-(3-bromo-2,4,6-trimethylacetanilide)iminodiacetat e (I) and 99mTc-N-pyridoxyl-5-methyl-tryptophan (II) have been described as having optimal properties as hepatobiliary radiopharmaceuticals. This study compared specificity for hepatobiliary excretion, blood disappearance, rates of biliary appearance, and pharm...

journal_title：Journal of pharmaceutical sciences

authors： Fritzberg AR,Bloedow DC,Eshima D,Johnson DL

更新日期：1984-12-01 00:00:00

abstract：:A sensitive, specific, high-performance liquid chromatographic procedure was developed for the measurement of plasma tiflamizole levels. Acidic plasma samples were extracted with three volumes of ether. The ether extracts were combined and evaporated to dryness. The residue was dissolved in acetonitrile, washed with h...

journal_title：Journal of pharmaceutical sciences

authors： Rakestraw DC,Whitney CC Jr

更新日期：1984-12-01 00:00:00

abstract：:Spherical medicated microglobules were prepared by complex coacervation of Type A gelatin with pectin, having nominal diameters of 5, 10, and 25 micron and containing 37.3, 44.9, and 45.2% (w/w) sulfamerazine, respectively. They were recovered as water-insoluble powders and were spontaneously revertible to highly disp...

journal_title：Journal of pharmaceutical sciences

authors： McMullen JN,Newton DW,Becker CH

更新日期：1984-12-01 00:00:00

abstract：:Liposomes containing sodium ioxitalamate were prepared by sonication. Suitable amounts of purified soybean phosphatidylcholine and cholesterol were used at various molar ratios. Stearylamine or dicetylphosphate were added to this lipid composition when charged liposomes were required. After sonication and removal of u...

journal_title：Journal of pharmaceutical sciences

authors： Benita S,Poly PA,Puisieux F,Delattre J

更新日期：1984-12-01 00:00:00

abstract：:A high-performance liquid chromatographic method was developed for the simultaneous determination of azobenzene, hydrazobenzene, and four other decomposition products in phenylbutazone injectable formulations. Separation was achieved on a C18 column, with 0.1 M Tris-citrate buffer (pH 5.25) and acetonitrile (52:48), a...

journal_title：Journal of pharmaceutical sciences

authors： Fabre H,Hussam-Eddine N,Mandrou B

更新日期：1984-12-01 00:00:00

abstract：:Molecular interactions between iodine and disulfiram, clomethiazole, and tolnaftate were investigated by electron spectroscopy. Iodine forms charge transfer complexes with these molecules, with 1:1 stoichiometry and of the n-sigma type. The formation constants were compared with those obtained with antithyroid molecul...

journal_title：Journal of pharmaceutical sciences

authors： Buxeraud J,Absil AC,Raby C

更新日期：1984-12-01 00:00:00

abstract：:Pepsin adsorbed on gibbsite or boehmite, non-acid-reactive forms of aluminum hydroxide, had a significantly lower activity than pepsin in solution. IR and desorbed pepsin activity studies showed that the reduced activity of adsorbed pepsin was not due to denaturation of pepsin on adsorption. Steric occlusion of the ac...

journal_title：Journal of pharmaceutical sciences

authors： Sepelyak RJ,Feldkamp JR,Regnier FE,White JL,Hem SL

更新日期：1984-11-01 00:00:00

abstract：:A rapid and sensitive spectrophotometric method has been developed to quantitate the peroxides present in sorbitan monooleate and monostearate. The method relies on the peroxide conversion of iodide to iodine. The method has also been found to work for polysorbate 60. ...

journal_title：Journal of pharmaceutical sciences

authors： Magill A,Becker AR

更新日期：1984-11-01 00:00:00

abstract：:Oxidation of 7,8-dimethoxy-1,2,3,4-tetrahydroisoquinoline with potassium permanganate in acetone afforded 7,8-dimethoxy-3,4-dihydroisoquinoline as the primary product. Hence, oxidation of the appropriate secondary nonphenolic 7,8-dioxygenated tetrahydroisoquinoline alkaloid is thus a facile method for the generation o...

journal_title：Journal of pharmaceutical sciences

authors： el-Fishawy AM,Slatkin DJ,Knapp JE,Schiff PL Jr

更新日期：1984-11-01 00:00:00

abstract：:Surface activity and critical micelle concentrations are reported for two diuretic drugs, furosemide and triamterene. The drugs generate a liquid membrane on a supporting membrane. Transport of chloride, sodium, and potassium ions through the liquid membranes generated by the drugs was studied. The data suggest that t...

journal_title：Journal of pharmaceutical sciences

authors： Bhise SB,Bhattacharjee D,Srivastava RC

更新日期：1984-11-01 00:00:00

abstract：:A physiological flow model was developed for the distribution of sulfathiazole residues in various tissues in swine. The approach was compartmental, in which the compartments and equilibrium constants had physiological meaning. Differential equations were developed, and appropriate parameter values and initial conditi...

journal_title：Journal of pharmaceutical sciences

authors： Duddy J,Hayden TL,Bourne DW,Fiske WD,Benedek IH,Stanley D,Gonzalez A,Heierman W

更新日期：1984-11-01 00:00:00

abstract：:In this study the relationships between previously reported connectivity indices described by Kier and Hall and steric contributions to the rate constants for several series of reactions are examined. Rate data were examined for four different series of reactions, which were chosen to represent a range of different re...

journal_title：Journal of pharmaceutical sciences

authors： Schug JC,Viers JW,Seeman JI

更新日期：1984-10-01 00:00:00

abstract：:The spherically agglomerated crystals of aminophylline (theophylline-ethylenediamine complex) can be compounded directly into pharmaceutical formulations without further processing, e.g., granulation. Such crystals were prepared by mixing theophylline and ethylenediamine in a partially miscible solvent system, i.e., o...

journal_title：Journal of pharmaceutical sciences

authors： Kawashima Y,Aoki S,Takenaka H,Miyake Y

更新日期：1984-10-01 00:00:00

abstract：:Phosphate is specifically adsorbed by aluminum hydroxycarbonate by anion ligand exchange. IR analysis indicated that phosphate exchanged with specifically adsorbed carbonate. Adsorption is favored by low pH and is inversely related to particle size. Adsorption of phosphate decreases the rate of acid neutralization of ...

journal_title：Journal of pharmaceutical sciences

authors： Liu JC,Feldkamp JR,White JL,Hem SL

更新日期：1984-10-01 00:00:00

abstract：:Polymethyl [1-14C]methacrylate nanoparticles were administered orally to bile cannulated rats. Ten to fifteen percent of the administered radioactivity was absorbed and found in the bile and urine. Within 48 h, 94-97% of the absorbed radioactivity had been eliminated from the body. After 8 d, the highest residual radi...

journal_title：Journal of pharmaceutical sciences

authors： Nefzger M,Kreuter J,Voges R,Liehl E,Czok R

更新日期：1984-09-01 00:00:00

abstract：:A high-performance liquid chromatographic method using a linear elution gradient has been developed for the analysis of sulindac, sulindac sulfone, and sulindac sulfide in plasma, urine, bile, and gastric fluid. The methodology uses reverse-phase, radial compression chromatography with gradient elution, and UV detecti...

journal_title：Journal of pharmaceutical sciences

authors： Musson DG,Vincek WC,Constanzer ML,Detty TE

更新日期：1984-09-01 00:00:00

abstract：:HPLC analysis confirmed a difference in the chemical composition of commercial versus NF reference standard potassium guaiacolsulfonate. After separation by fractional crystallization, the two constituents comprising the former sample were identified by 1H-NMR as potassium guaiacol-4- and -5-sulfonate, respectively. T...

journal_title：Journal of pharmaceutical sciences

authors： Tangtatsawasdi P,Krikorian SE

更新日期：1984-09-01 00:00:00

abstract：:A procedure for the quantitative determination of adinazolam in plasma was developed. The drug, an N-demethylated metabolite, and an internal standard were extracted from basified plasma into ethyl acetate. After evaporation, the residue was dissolved in toluene which was washed with sodium hydroxide. The toluene was ...

journal_title：Journal of pharmaceutical sciences

authors： Peng GW

更新日期：1984-08-01 00:00:00

abstract：:A series of 4-substituted aminoquinoline-3-carboxylates was prepared and evaluated for antimicrobial activity. Four of the compounds (VIII, XIII, XV, and XXIII) exhibited low activity against Staphylococcus aureus. ...

journal_title：Journal of pharmaceutical sciences

authors： Marecki PE,Bambury RE

更新日期：1984-08-01 00:00:00

abstract：:Male fertility has reportedly been regulated by the long-term, continuous administration of testosterone. To deliver the testosterone at a controlled rate for a month or longer, a bandage-type, testosterone-releasing, disk-shaped device was developed. In vitro drug elution studies demonstrated that a constant release ...

journal_title：Journal of pharmaceutical sciences

authors： Chien YW

更新日期：1984-08-01 00:00:00

abstract：:Tissue damage caused by subcutaneous and intramuscular administration of three phenytoin prodrugs to rats was assessed. Since two of the prodrugs caused significant irritation, only 3-(hydroxymethyl)-5,5-diphenylhydantoin disodium phosphate ester might be useful as a nonirritant phenytoin prodrug suitable for parenter...

journal_title：Journal of pharmaceutical sciences

authors： Varia SA,Stella VJ

更新日期：1984-08-01 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：:Complexation of ferrous cytochrome P450 by metabolic intermediates formed during NADPH-catalyzed metabolism of compounds structurally related to orphenadrine was studied. This so-called metabolic intermediate complexation was determined in rat liver microsomes, obtained from phenobarbital-pretreated rats, at 455 nm us...

journal_title：Journal of pharmaceutical sciences

authors： Bast A,Savenije-Chapel EM,Noordhoek J

更新日期：1984-07-01 00:00:00

abstract：:Several factors affecting the dissolution rate of cholesterol in monooctanoin were investigated. This solvent is used clinically for dissolution of residual cholesterol gallstones in the bile duct after cholecystectomy. The effect of added water on dissolution rate, measured using the static- or rotating-disk methods,...

journal_title：Journal of pharmaceutical sciences

authors： Bogardus JB

更新日期：1984-07-01 00:00:00

abstract：:A stability-indicating analytical method is described for the simultaneous determination of nitrate, and if present, its reductive degradation product, nitrite, in toothpastes. Nitrate and nitrite were extracted from the toothpaste using distilled water and separated from other water-soluble excipients by two RP-8 col...

journal_title：Journal of pharmaceutical sciences

authors： Lulla H,Chen SS,Sena FJ

更新日期：1984-07-01 00:00:00

abstract：:3-N-(1',8'-Naphthalimido)propionic acid was synthesized and shown to effectively lower both serum cholesterol and triglyceride levels in rats and mice. In hyperlipidemic mice, serum lipid levels were lowered significantly, approaching normal levels of cholesterol and below normal levels of triglyceride. The serum lipi...

journal_title：Journal of pharmaceutical sciences

authors： Hall IH,Chapman JM Jr,Voorstad PJ,Cocolas GH

更新日期：1984-07-01 00:00:00

abstract：:Three novel series of 4-oxoquinazoline derivatives were prepared and evaluated as potential antimicrobial agents. Evaluation of the antimicrobial activity of a variety of 4-substituted-1-thiosemicarbazides, 3,4-disubstituted thiazolines, and 3-substituted-5-thiazolidones reveals that the majority possess significant i...

journal_title：Journal of pharmaceutical sciences

authors： Habib NS,Khalil MA

更新日期：1984-07-01 00:00:00

abstract：:A rapid and simple high-performance liquid chromatographic (HPLC) method for the analysis of dichlorophen in raw material and in dichlorophen-toluene soft gelatin capsules for veterinary use was developed using a reverse-phase technique. This HPLC system was shown to isolate dichlorophen from its major impurity (the t...

journal_title：Journal of pharmaceutical sciences

authors： Shah KA,Samuels SA,Michaels MK,Warren JW

更新日期：1984-06-01 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：:The stability of aqueous solutions of luteinizing hormone-releasing hormone (LHRH) after extended storage at various temperatures was investigated using a newly developed HPLC assay and an in vitro dispersed pituitary cell culture bioassay. Good correlations were obtained between the potency obtained by HPLC and bioas...

journal_title：Journal of pharmaceutical sciences

authors： Shi YF,Sherins RJ,Brightwell D,Gallelli JF,Chatterji DC

更新日期：1984-06-01 00:00:00

abstract：:Some coated aspirin tablet formulations were evaluated by relating their properties to disintegrating force development patterns. The treatment of disintegrating force-time curves was effected using the Weibull distribution as proposed for dissolution. Such parameters as the maximum disintegrating force developed, the...

journal_title：Journal of pharmaceutical sciences

authors： Colombo P,Conte U,Caramella C,Geddo M,La Manna A

更新日期：1984-05-01 00:00:00

abstract：:The remineralization behavior of weak acid-treated bovine tooth enamel has been investigated using a recently developed quantitative microradiographic method. Acetate buffer solutions at pH 4.5 containing calcium, phosphate, and 10 ppm fluoride were used in this study. When the solution ion activity product ( KFAP = a...

journal_title：Journal of pharmaceutical sciences

authors： Bergstrom DH,Fox JL,Higuchi WI

更新日期：1984-05-01 00:00:00