Solid-Phase and Oscillating Solution Crystallization Behavior of (+)- and (-)-N-Methylephedrine.

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：:Sodium salicylate improves the rectal absorption of drugs which exhibit molecular self-association; it is suggested that salicylate may improve drug bioavailability by altering the drug self-association pattern. Methylene blue was chosen as a model molecule for investigating the interference of salicylate with drugs u...

journal_title：Journal of pharmaceutical sciences

authors： Touitou E,Fisher P

更新日期：1986-04-01 00:00:00

abstract：:The total synthesis of d-pilocarpine specifically labeled as N-14CH3 is reported. dl-Homopilopic acid was prepared as a key intermediate and resolved into the d-enantiomer via the alpha-methylbenzylamine salt. The penultimate intermediate, 2-mercaptopilocarpine, was desulfurized by oxidation with dilute hydrogen perox...

journal_title：Journal of pharmaceutical sciences

authors： DeGraw JI,Engstrom JS,Willis E

更新日期：1975-10-01 00:00:00

abstract：:Many pharmaceuticals are formulated as powders to aid drug delivery. A major problem is how to produce powders having high purity, controlled morphology, and retained bioactivity. We demonstrate the use of supercritical carbon dioxide as an antisolvent for meeting this need for two model drug systems, quercetin, a spa...

journal_title：Journal of pharmaceutical sciences

authors： Jacobson GB,Shinde R,McCullough RL,Cheng NJ,Creasman A,Beyene A,Hickerson RP,Quan C,Turner C,Kaspar RL,Contag CH,Zare RN

更新日期：2010-06-01 00:00:00

abstract：:Amphiphilic cyclodextrins (CDs) are biocompatible derivatives of natural CDs and are able to form nanoparticles or polyplexes spontaneously. In this study, nanoparticles prepared from nonionic (6OCaproβCD) or cationic amphiphilic CD (PC βCDC6) were used comparatively to develop nanoparticles intended for breast cancer...

journal_title：Journal of pharmaceutical sciences

authors： Varan G,Öncül S,Ercan A,Benito JM,Ortiz Mellet C,Bilensoy E

更新日期：2016-10-01 00:00:00

abstract：:A rapid, sensitive, and accurate reversed-phase HPLC method has been developed for the analysis and quantification of pharmaceutical formulations containing tyrothricin (1), an antibiotic used in antiseptic buccal compressed tablets for local application. The assay has been carried out under isocratic conditions, usin...

journal_title：Journal of pharmaceutical sciences

authors： Caraballo I,Fernandez-Arevalo M,Holgado MA,Vela MT,Rabasco AM

更新日期：1994-08-01 00:00:00

abstract：:The influence of the glycosylation profile of IgG on biological activity is known, but it is not clear which glycoforms have the highest impact on the main mechanism of action. The aim of this study was to design a mathematical model for predicting the antibody-dependent cellular cytotoxicity (ADCC) activity and the F...

journal_title：Journal of pharmaceutical sciences

authors： Bartusik-Czubek E,Toboła P,Czubek B,Bednarek M,Balcerek J,Pietrucha T,Jaros S

更新日期：2021-01-20 00:00:00

abstract：:Reported estrone pKa and solubility data show wide variation. Improved experimental procedures were designed and used to obtain reproducible results. The pKa values for several estrogens and related compounds also were determined to assess the effects of structural differences on ionization. No evidence was obtained f...

journal_title：Journal of pharmaceutical sciences

authors： Hurwitz AR,Liu ST

更新日期：1977-05-01 00:00:00

abstract：:A high-pressure liquid chromatographic procedure for the accurate determination of disopyramide and its chief metabolite in plasma is presented. The method is suitable for monitoring patients receiving disopyramide therapy. A reversed-phase cyanopropylsilane column is utilized with a mobile phase of 50% acetonitrile a...

journal_title：Journal of pharmaceutical sciences

authors： Nygard G,Shelver WH,Khalil SK

更新日期：1979-10-01 00:00:00

abstract：:Apomorphine, a dopamine receptor agonist for treating Parkinson's disease, has very poor oral bioavailability (<2%) due to the first-pass effect. The aim of this work was to investigate whether the oral bioavailability and brain regional distribution of apomorphine could be improved by utilizing solid lipid nanopartic...

journal_title：Journal of pharmaceutical sciences

authors： Tsai MJ,Huang YB,Wu PC,Fu YS,Kao YR,Fang JY,Tsai YH

更新日期：2011-02-01 00:00:00

abstract：:Phenytoin has been decreasingly used because of the high interindividual variability in drug concentration and the narrow therapeutic window. Despite such drawbacks, phenytoin is still essential as a second-line therapy for status epilepticus when patients are resistant to benzodiazepines. This study aimed to develop ...

journal_title：Journal of pharmaceutical sciences

authors： Guk J,Lee SG,Chae D,Kim JH,Park K

更新日期：2019-08-01 00:00:00

abstract：:A direct high-performance liquid chromatographic (HPLC) method was applied to monitor 2,5-diaziridinyl-3,6-bis(carboethoxyamino)-1,4-benzoquinone (I) and its degradation products in pharmaceutical vehicles at 25 +/- 0.1 degrees. At the optimal pH for stability of I, an increase in buffer concentration [phosphate and t...

journal_title：Journal of pharmaceutical sciences

authors： Poochikian GK,Kelley JA

更新日期：1981-02-01 00:00:00

abstract：:Metronidazole (MTZ) is a drug of choice for protozoal infections such as luminal amoebiasis. We designed and synthesized N-nicotinoyl-2-{2-(2-methyl-5-nitroimidazol-1-yl)ethyloxy}-D,L-glycine (NMG) as a colon-specific prodrug of MTZ. The synthetic yield of NMG was about 34%. The apparent partition coefficient of MTZ w...

journal_title：Journal of pharmaceutical sciences

authors： Kim D,Hong S,Jung S,Jung Y,Kim YM

更新日期：2009-11-01 00:00:00

abstract：:In this study, the cytotoxicity of doxorubicin (DOX) loaded stearic acid grafted chitosan oligosaccharide (CSO-SA) micelles and its core modified drug delivery systems were investigated in vitro. The in vitro drug release experiments using cellular culture medium, Roswell Park Memorial Institute 1640 (RPMI-1640) mediu...

journal_title：Journal of pharmaceutical sciences

authors： Ye YQ,Chen FY,Wu QA,Hu FQ,Du YZ,Yuan H,Yu HY

更新日期：2009-02-01 00:00:00

abstract：:Phospholipids have been extensively evaluated as an anchor for both PEGylation and receptor-targeting in liposomal formulations. However, cholesterol, another important component in biomembranes, has not been fully investigated as an alternative anchor. In this study, the potential role of cholesterol for anchoring PE...

journal_title：Journal of pharmaceutical sciences

authors： Zhao XB,Muthusamy N,Byrd JC,Lee RJ

更新日期：2007-09-01 00:00:00

abstract：:The purpose of this study was to understand the combined effect of two polymers showing drug-polymer interactions on amorphous stabilization and dissolution enhancement of indomethacin (IND) in amorphous ternary solid dispersions. The mechanism responsible for the enhanced stability and dissolution of IND in amorphous...

journal_title：Journal of pharmaceutical sciences

authors： Prasad D,Chauhan H,Atef E

更新日期：2014-11-01 00:00:00

abstract：:Two types of drug release mechanisms-matrix controlled (Q - t1/2 relationship) and partition controlled (Q - t relationship)-were reported previously. The dependency of the transition between these two processes on the solution solubility of drug is now analyzed. Mathematical expressions are derived to treat the syste...

journal_title：Journal of pharmaceutical sciences

authors： Chien YW,Lambert HJ,Lin TK

更新日期：1975-10-01 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 equilibrium constants, kinetics, and mechanism of promazine and promethazine oxidation by ferric perchlorate were investigated at different temperatures and acidities using a stopped-flow spectrophotometric technique. The overall reaction can be represented as follows: (formula: see text) where P+ represents the r...

journal_title：Journal of pharmaceutical sciences

authors： Gasco MR,Carlotti ME

更新日期：1978-02-01 00:00:00

abstract：:In vitro iontophoretic administration of drugs through a microporous polyolefin membrane with hydrophilic urethane polymerfilled pores was done for the ionized drugs dexamethasone sodium phosphate, hydrocortisone sodium phosphate, and prednisolone sodium succinate, and for a nonionizable drug cortisone acetate. Curren...

journal_title：Journal of pharmaceutical sciences

authors： Tu YH,Allen LV Jr

更新日期：1989-03-01 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：: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：:Substance P (SP) was degraded by synaptic membranes of rat spinal cord. Cleavage products were separated by reversed phase high performance liquid chromatography and identified by amino acid composition analyses. Major products of SP were phenylalanine, SP(1-4), SP(1-6), SP(1-7), SP(10-11), and SP(8-9). Both the degra...

journal_title：Journal of pharmaceutical sciences

authors： Sakurada C,Watanabe C,Sakurada S,Tan-No K,Sakurada T

更新日期：1999-11-01 00:00:00

abstract：:This study determines the enhancing effects of 2-n-nonyl-1,3-dioxolane on the penetration of econazole, an antifungal drug, into the deeper layers of the human nail where fungal infection resides. Aliquots (10 microL) of Econail lacquer formulation containing 0.45 mg of [(14)C]-econazole with 18% 2-n-nonyl-1,3-dioxola...

journal_title：Journal of pharmaceutical sciences

authors： Hui X,Chan TC,Barbadillo S,Lee C,Maibach HI,Wester RC

更新日期：2003-01-01 00:00:00

abstract：:The tablet friability resulting from formulation variations was studied under controlled granulation moisture content and tablet crushing strength. Tablets made with lactose were more friable than tablets made with microcrystalline cellulose. Replacement of 0.5% magnesium stearate with 0.5% stearic acid in the formula...

journal_title：Journal of pharmaceutical sciences

authors： Chowhan ZT,Amaro AA,Ong JT

更新日期：1992-03-01 00:00:00

abstract：:In the present study, a previously described sulfenamide prodrug of a basic antidiabetic drug, metformin, was evaluated further. This sulfenamide prodrug was designed to improve the permeability and consequently the oral absorption and bioavailability (F) of the highly water-soluble metformin. Bioactivation of the pro...

journal_title：Journal of pharmaceutical sciences

authors： Huttunen KM,Leppänen J,Vepsäläinen J,Sirviö J,Laine K,Rautio J

更新日期：2012-08-01 00:00:00

abstract：:The acidic, neutral, and alkaline degradations of six therapeutically useful cephalosporins (cephalothin, cephaloridine, cephaloglycin, cephalexin, cephradine, and cefazolin), 7-amino-cephalosporanic acid, 7-aminodeacetoxycephalosporanic acid, and some 7-substituted derivatives were followed by high-pressure liquid ch...

journal_title：Journal of pharmaceutical sciences

authors： Yamana T,Tsuji A

更新日期：1976-11-01 00:00:00

abstract：:While the number of clinical trials has continued to grow by about 20% in the past six months, no corresponding growth in product approval by the food and drug administration is seen or anticipated in the near future. Late-stage clinical failures due to lack of efficacy or toxicity continues to be a challenge. The opt...

journal_title：Journal of pharmaceutical sciences

authors： Ho RJ,Chien JY

更新日期：2009-06-01 00:00:00

abstract：:3D cultures of primary human hepatocytes (PHH) are emerging as a more in vivo-like culture system than previously available hepatic models. This work describes the characterisation of drug metabolism in 3D PHH spheroids. Spheroids were formed from three different donors of PHH and the expression and activities of impo...

journal_title：Journal of pharmaceutical sciences

authors： Kanebratt KP,Janefeldt A,Vilén L,Vildhede A,Samuelsson K,Milton L,Björkbom A,Persson M,Leandersson C,Andersson TB,Hilgendorf C

更新日期：2021-01-01 00:00:00

abstract：:Eprosartan mesylate (SKF 108566-J; EM) is an antihypertensive agent approved for marketing in the USA. EM dihydrate was prepared by three methods, one of which included suspending the anhydrous drug in an aqueous solution of 1.0 M methanesulfonic acid to form a slurry, followed by filtration. The dehydration kinetics ...

journal_title：Journal of pharmaceutical sciences

authors： Sheng J,Venkatesh GM,Duddu SP,Grant DJ

更新日期：1999-10-01 00:00:00