Stability of aqueous solutions of pirbuterol.

abstract：:This article presents a theoretical model of transdermal drug delivery from an emulsion-type vehicle that addresses the vehicle heterogeneity and incorporates the prediction of drug transport parameters as function of the vehicle composition. The basic mass transfer model considers interfacial and diffusion resistance...

journal_title：Journal of pharmaceutical sciences

authors： Bernardo FP,Saraiva PM

更新日期：2008-09-01 00:00:00

abstract：:This work aimed at establishing a framework to screen and understand the product variability deeming from factors that affect the quality features of cream formulations. As per Quality by Design - based approach, cream quality target profile and critical quality attributes were identified, and a risk assessment analys...

journal_title：Journal of pharmaceutical sciences

authors： Simões A,Veiga F,Vitorino C

更新日期：2019-10-01 00:00:00

abstract：:The application of drug ion-selective electrodes as sensors for the direct determination of the released drug in a continuous-flow analyzer for automated dissolution studies is described. Flow-through electrodes, selective to chlorpromazine, amitriptyline, propantheline, cimetidine, and ranitidine, have been construct...

journal_title：Journal of pharmaceutical sciences

authors： Mitsana-Papazoglou A,Christopoulos TK,Diamandis EP,Koupparis MA

更新日期：1987-09-01 00:00:00

abstract：:Twenty-two neutral, lipid-soluble 99mTc complexes have been synthesized from diamine dithiol (DADT) ligands which vary in alkyl substitution pattern on nitrogen and carbon. The logarithm of the partition coefficients (log PC), as well as the capacity factor k', of the purified complexes increased linearly with molecul...

journal_title：Journal of pharmaceutical sciences

authors： Lever SZ,Sun SY,Scheffel UA,Kaltovich FA,Baidoo KE,Goldfarb H,Wagner HN Jr

更新日期：1994-06-01 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 present study aims to evaluate the in vitro and in vivo performance of ordered mesoporous silica (OMS) as a carrier for the poorly water-soluble compound fenofibrate. Fenofibrate was loaded into OMS via incipient wetness impregnation to obtain a 29% drug load and formulated into capsules. Two capsule dosage forms ...

journal_title：Journal of pharmaceutical sciences

authors： Bukara K,Schueller L,Rosier J,Daems T,Verheyden L,Eelen S,Martens JA,Van den Mooter G,Bugarski B,Kiekens F

更新日期：2016-08-01 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：:For particles to be useful medicinal aerosols, not only their aerodynamic diameter has to be on the order of a few micrometers but also they have to be chemically and physically stable. Manufacture of respirable particles is a technical challenge because as particles are reduced in size by conventional milling techniq...

journal_title：Journal of pharmaceutical sciences

authors： Lechuga-Ballesteros D,Charan C,Stults CL,Stevenson CL,Miller DP,Vehring R,Tep V,Kuo MC

更新日期：2008-01-01 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：:Allopurinol exhibits good bioavailability (78-90%) after administration of oral dosage forms to humans and rabbits; however, it is not absorbed rectally from any of the dosage forms to any significant extent. Oral administration of allopurinol in a polyethylene glycol suspension, to which allopurinol may be reversibly...

journal_title：Journal of pharmaceutical sciences

authors： Patel VS,Kramer WG

更新日期：1986-03-01 00:00:00

abstract：:Although many biotech products are successfully stored in the frozen state, there are cases of degradation of biologicals during freeze storage. These examples are discussed in the Perspective to emphasize the fact that stability of frozen biologicals should not be taken for granted. Frozen-state degradation (predomin...

journal_title：Journal of pharmaceutical sciences

authors： Authelin JR,Rodrigues MA,Tchessalov S,Singh SK,McCoy T,Wang S,Shalaev E

更新日期：2020-01-01 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：:This work investigates the use of spray freeze-drying (SFD) to produce protein loaded particles suitable for epidermal delivery. In the first part of the study, the effects of formulation and process conditions on particle properties are examined. Aqueous solutions of trehalose produce SFD particles in the size range ...

journal_title：Journal of pharmaceutical sciences

authors： Sonner C,Maa YF,Lee G

更新日期：2002-10-01 00:00:00

abstract：:The previous paper in this series introduced an X-ray diffraction quantitation method for the polymorphic content in tablets made of pure components. Before the method could be transferred, further studies were required to explain the commonly observed X-ray intensity variation in analyzing compacts. The literature ty...

journal_title：Journal of pharmaceutical sciences

authors： Cao W,Mullarney MP,Hancock BC,Bates S,Morris KR

更新日期：2003-12-01 00:00:00

abstract：:Carbamazepine is the first-line anti-epileptic drug for focal seizures and generalized tonic-clonic seizures. Although sustained-release formulations exist, an initial burst of drug release is still present and this results in side effects. Zero-order release formulations reduce fluctuations in serum drug concentratio...

journal_title：Journal of pharmaceutical sciences

authors： Lim SH,Chia SM,Kang L,Yap KY

更新日期：2016-07-01 00:00:00

abstract：:The effects of aspirin on 14C-pirprofen disposition in the rat were studied. An oral 60-mg/kg dose of aspirin significantly reduced plasma radioactivity during the 1--8-hr interval after an intravenous 5-mg/kg injection of 14C-pirprofen. The aspirin-treated group had only 69% as much area under the radioactivity curve...

journal_title：Journal of pharmaceutical sciences

authors： Thompson TA,Borman CH,Goodblatt RS,Roth WJ 3rd

更新日期：1979-08-01 00:00:00

abstract：:SARS-CoV-2 utilizes the IMPα/β1 heterodimer to enter host cell nuclei after gaining cellular access through the ACE2 receptor. Ivermectin has shown antiviral activity by inhibiting the formation of the importin-α (IMPα) and IMPβ1 subunits as well as dissociating the IMPα/β1 heterodimer and has in vitro efficacy agains...

journal_title：Journal of pharmaceutical sciences

authors： Jermain B,Hanafin PO,Cao Y,Lifschitz A,Lanusse C,Rao GG

更新日期：2020-12-01 00:00:00

abstract：:In vivo studies were conducted in rats to determine the role of hyperglycemia and hypoinsulinemia in the previously reported reduction in the hepatic accumulation and increase in the serum concentrations of 70-kDa fluorescein-dextran (FD-70) in diabetic (D) rats. The serum, urine, and hepatic concentrations of FD-70 w...

journal_title：Journal of pharmaceutical sciences

authors： Mehvar R,Reynolds J

更新日期：1994-07-01 00:00:00

abstract：:The assay of suppositories containing pentobarbital and/or pyrilamine in a water-soluble polyethylene glycol base by high-pressure liquid chromatography is described. No extraction is required. The suppository is dissolved in the mobile phase. This solution is diluted with an internal standard stock solution containin...

journal_title：Journal of pharmaceutical sciences

authors： Block JH,Levine HL,Ayres JW

更新日期：1979-05-01 00:00:00

abstract：:Anhydrotetracycline (AHTC), one of the major toxic decomposition products of the antibiotic tetracycline, contains several potential binding sites to metal ions. The acidity constants of the ligand were calculated in aqueous medium (I = 0.1 M) at 25 and 37 degrees C. We found pKa1 = 3.23 +/- 0.08, pKa2 = 5.94 +/- 0.09...

journal_title：Journal of pharmaceutical sciences

authors： de Siqueira JM,Carvalho S,Paniago EB,Tosi L,Beraldo H

更新日期：1994-03-01 00:00:00

abstract：:The synthesis, hydrolysis rate, and bioavailability of 1-(p-acetaminophenoxy)-1-ethoxyethane, an acetaminophen prodrug, are described. The prodrug is less soluble than acetaminophen and stable at neutral pH. However, in an acidic environment, the compound cleaves rapidly, generating acetaminophen. When both the prodru...

journal_title：Journal of pharmaceutical sciences

authors： Hussain A,Kulkarni P,Perrier D

更新日期：1978-04-01 00:00:00

abstract：:The bioavailability of clofibric acid from formulations containing calcium clofibrate along and mixed with calcium carbonate (1:1 w/w) was compared to that from a standard clofibrate formulation in a crossover study in 12 human subjects. The 95% confidence intervals of bioavailability differences were such that they ...

journal_title：Journal of pharmaceutical sciences

authors： Taylor T,Chasseaud LF

更新日期：1977-11-01 00:00:00

abstract：:Controlled-release delivery of 6-beta-naltrexol (NTXOL), the major active metabolite of naltrexone, via a transdermal patch is desirable for treatment of alcoholism. Unfortunately, NTXOL does not diffuse across skin at a therapeutic rate. Therefore, the focus of this study was to evaluate microneedle (MN) skin permeat...

journal_title：Journal of pharmaceutical sciences

authors： Banks SL,Pinninti RR,Gill HS,Paudel KS,Crooks PA,Brogden NK,Prausnitz MR,Stinchcomb AL

更新日期：2010-07-01 00:00:00

abstract：:The majority of gene therapy clinical trials use plasmid DNA that is susceptible to shear-induced degradation. Many processing steps in the extraction, purification, and preparation of plasmid-based therapeutics can impart significant shear stress that can fracture the phosphodiester backbone of polynucleotides, and r...

journal_title：Journal of pharmaceutical sciences

authors： Lengsfeld CS,Anchordoquy TJ

更新日期：2002-07-01 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：:Abbott-232 is a chemically stable, highly water soluble non-hygroscopic compound selected for development as a potent uroselective alpha(1A) agonist. An anhydrate, a monohydrate, and an amorphous phase were isolated. The anhydrate was chosen for formulation development based on solid-state characterization. Excipients...

journal_title：Journal of pharmaceutical sciences

authors： Wardrop J,Law D,Qiu Y,Engh K,Faitsch L,Ling C

更新日期：2006-11-01 00:00:00

abstract：:A fully automated system for dissolution rate analysis of potassium in slow release tablets is described. Aliquots are removed after 1, 2, and 4 hr from six samples, and potassium is analyzed in a flame photometer at 768 nm. A complete study of six samples takes 5.5 hr. The system may be run overnight. During the time...

journal_title：Journal of pharmaceutical sciences

authors： Engdahl A,Karlberg B,Thelander S

更新日期：1976-03-01 00:00:00

abstract：:DNA co-condensates were formed by reacting [125I]DNA with an admixture of a high-mannose glycopeptide (Man9-CWK(18)) and either of two poly(ethylene glycol) peptides (PEG-VS-CWK(18) or PEG-SS-CWK(18)) followed by cross-linking with 6-50 mol equiv of glutaraldehyde. [125I]DNA co-condensates were administered intravenou...

journal_title：Journal of pharmaceutical sciences

authors： Yang Y,Park Y,Man S,Liu Y,Rice KG

更新日期：2001-12-01 00:00:00

abstract：:We report a programed drug delivery system that can tailor the release of anesthetic bupivacaine in a spatiotemporally controlled manner. The drug delivery system was developed through the combination of a collagen-based injectable hydrogel and 2 types of poly(lactic-co-glycolic acid) (PLGA) particles. As a rapid-rele...

journal_title：Journal of pharmaceutical sciences

authors： Dinh VV,Suh YS,Yang HK,Lim YT

更新日期：2016-12-01 00:00:00

abstract：:A colorimetric determination of chlorhexidine is described. The method is based on the formation of a yellow complex between the drug and bromcresol green. The absorption peak of this complex, extracted by chloroform, is at 410 nm, and linear response is obtained from 2.5 to 30 micrograms of chlorhexidine/ml. The accu...

journal_title：Journal of pharmaceutical sciences

authors： Andermann G,Buhler MO,Erhart M

更新日期：1980-02-01 00:00:00