High-performance liquid chromatography-tandem mass spectrometry method for simultaneous quantification of carbamazepine, oxcarbazepine, and their main metabolites in human serum.

abstract：:Determination of plasma methadone is essential in connection with dose adjustments for patients participating in methadone maintenance programs. We successfully adapted the existing fluorescence polarization immunoassay (FPIA) kit intended for urinary methadone to plasma assays. A concentration interval of 50-900 ng/m...

journal_title：Therapeutic drug monitoring

authors： Beck O,Boreus LO,Borg S,Jacobsson G,Lafolie P,Stensiö M

更新日期：1990-09-01 00:00:00

abstract：:The effect of ofloxacin taken for 8 days (200 mg twice daily) on the pharmacokinetics of a single intravenous dose of theophylline (4.3 mg/kg over 15 min) was studied in a crossover procedure among seven healthy male volunteers. Theophylline concentrations were measured serially for 10 h by the immunofluorescence pola...

journal_title：Therapeutic drug monitoring

authors： Al-Turk WA,Shaheen OM,Othman S,Khalaf RM,Awidi AS

更新日期：1988-01-01 00:00:00

abstract：:Given the high prevalence of the use of medications in daily practice and the large number of people taking antirheumatic agents, the risk of drug-drug interactions and of hepatotoxicity is of concern. Both old and new compounds show such a risk. Nonsteroidal antinflammatory drugs are widely used drugs with potential ...

journal_title：Therapeutic drug monitoring

authors： Anelli MG,Scioscia C,Grattagliano I,Lapadula G

更新日期：2012-12-01 00:00:00

abstract：:Thiopurine methyltransferase (TPMT) is a cytoplasmic enzyme that preferentially catalyzes the S-methylation of aromatic and heterocyclic sulphydryl compounds, such as the thiopurine drugs azathioprine, mercaptopurine, and thioguanine. These drugs form the same terminal metabolites, the thioguanine nucleotides (TGNs). ...

journal_title：Therapeutic drug monitoring

authors： Lennard L

更新日期：1998-10-01 00:00:00

abstract：:The authors describe a reverse-phase high-performance liquid chromatography-electrospray-tandem mass spectrometry method for the measurement of nicotine in human plasma. Samples (500 microL) with added deuterium-labeled d3-nicotine as an internal standard (IS) were treated with a 2-step process of ether extraction (6 ...

journal_title：Therapeutic drug monitoring

authors： Taylor PJ,Forrest KK,Landsberg PG,Mitchell C,Pillans PI

更新日期：2004-10-01 00:00:00

abstract：:The enantioselectivity of hydroxylation of nortriptyline (NT) to E-10-hydroxynortriptyline (E-10-OH-NT) was studied in human liver microsomes, intestinal homogenate, and patients treated with NT. The rate of formation of (-)-E-10-OH-NT was higher than that of (+)-E-10-OH-NT both in the liver microsomes and in the inte...

journal_title：Therapeutic drug monitoring

authors： Dahl ML,Nordin C,Bertilsson L

更新日期：1991-05-01 00:00:00

abstract：:The adsorption of amitriptyline, desipramine, doxepin, imipramine, and nortriptyline onto cholestyramine was demonstrated in vitro with use of 1.2 mol/L HCl at 37 degrees C to simulate gastric fluid. Binding to cholestyramine was approximately 80% for each of the tricyclic antidepressants, and this was about the same ...

journal_title：Therapeutic drug monitoring

authors： Bailey DN,Coffee JJ,Anderson B,Manoguerra AS

更新日期：1992-08-01 00:00:00

abstract：:The authors describe a case of furosemide possibly inhibiting the hypoprothrombinemic effect of warfarin. The initiation of furosemide dosing in a patient receiving a stable dose of warfarin was associated with an 28% decrease in the international normalized ration (INR). Using normal volunteers, two previous controll...

journal_title：Therapeutic drug monitoring

authors： Laizure SC,Madlock L,Cyr M,Self T

更新日期：1997-06-01 00:00:00

abstract：:A stabilized therapeutic drug monitoring procedure incorporating the novel Empore solid-phase extraction membrane (SPEM) for isolation of the antiarrhythmic drugs mexiletine (MEX) and flecainide (FLEC) from serum is described. Routinely, serum (0.5 ml), adjusted to pH 4.5, is passed through an octyl (C8) SPEM to extra...

journal_title：Therapeutic drug monitoring

authors： Lensmeyer GL,Wiebe DA,Doran TC

更新日期：1992-10-01 00:00:00

abstract：:The solubility and stability of amphotericin B in human serum in vitro was assessed using a sensitive high performance liquid chromatographic technique. The solubility of amphotericin B at concentrations ranging from 0.5 micrograms/ml to 10 micrograms/ml in human serum at pH 7.4, at 37 degrees C, and in 5% CO2 (simula...

journal_title：Therapeutic drug monitoring

authors： Edmonds LC,Davidson L,Bertino JS Jr

更新日期：1989-01-01 00:00:00

abstract：:The purpose of this study was to construct a population pharmacokinetic (PK) metabolism (MB) model to describe ciprofloxacin (C) concentrations in plasma and vitreous and aqueous humors in 26 patients. Ciprofloxacin was given as a 3-day oral prophylactic treatment to 26 patients before vitrectomy. Plasma, vitreous, an...

journal_title：Therapeutic drug monitoring

authors： Di Marco MP,Chen J,Wainer IW,Ducharme MP

更新日期：2004-08-01 00:00:00

abstract：:The effect of mycophenolic acid (MPA) in combination with either cyclosporine (CsA) or tacrolimus (TRL) on whole-blood lymphocyte function was assessed in vitro as well as in vivo. For the in vitro studies, rat whole blood was incubated with different concentrations of MPA together with CsA or TRL. In vivo, rats (n = ...

journal_title：Therapeutic drug monitoring

authors： Barten MJ,Shipkova M,Bartsch P,Dhein S,Streit F,Tarnok A,Armstrong VW,Mohr FW,Oellerich M,Gummert JF

更新日期：2005-04-01 00:00:00

abstract：BACKGROUND:Desmopressin (D-amino D-arginine vasopressin: dDAVP) is used for the treatment of patients with hemophilia A and Von Willebrand disease. Studies on the rationale of dosing are scarce and mainly focus on the underlying causes of the vast differences in desmopressin response among individuals. The aim of this ...

journal_title：Therapeutic drug monitoring

authors： de Jager NCB,Heijdra JM,Pistorius M,Kruip MJHA,Leebeek FWG,Cnossen MH,Mathôt RAA

更新日期：2020-12-01 00:00:00

abstract：:The study was designed to determine the steady-state pharmacokinetic profile of diazepam and desmethyldiazepam following a 15-mg controlled-release capsule dosed once daily at either 7 a.m. or 11 p.m. compared with the respective profiles of the conventional 5-mg tablet dosed three times a day at 7 a.m., 12 p.m., and ...

journal_title：Therapeutic drug monitoring

authors： Wills RJ,Colburn WA

更新日期：1983-01-01 00:00:00

abstract：INTRODUCTION:Enoxaparin is an anticoagulant used in the treatment of thromboembolic diseases. It is a hydrophilic molecule that is, predominantly, eliminated renally with few data to support dosing for subjects with renal impairment and/or obesity. A recently conducted randomized controlled clinical trial compared indi...

journal_title：Therapeutic drug monitoring

authors： Barras MA,Duffull SB,Atherton JJ,Green B

更新日期：2010-08-01 00:00:00

abstract：:Hair testing procedures allow a cumulative reflection of long-term drug abuse and are useful as a test for compliance in clinical toxicology. In the present study, liquid chromatography coupled with tandem mass spectrometry was used to determine analgesic opioid drugs in hair samples. The procedure used a simple metha...

journal_title：Therapeutic drug monitoring

authors： Musshoff F,Lachenmeier K,Trafkowski J,Madea B,Nauck F,Stamer U

更新日期：2007-10-01 00:00:00

abstract：:Specific chromatographic methods for the measurement of cyclosporin A, tacrolimus, sirolimus, and everolimus blood levels in patients with organ transplants are time consuming when large numbers of samples must be processed. The authors developed a robust and fast (1 minute) online solid-phase extraction liquid chroma...

journal_title：Therapeutic drug monitoring

authors： Meinitzer A,Gartner G,Pilz S,Stettin M

更新日期：2010-02-01 00:00:00

abstract：:The objective of this study was to evaluate the analytical performance of the Abbott ARCHITECT Cyclosporine (CsA) immunoassay in 7 clinical laboratories in comparison to liquid chromatography/tandem mass spectrometry (LC/MS/MS), Abbott TDx, Cobas Integra 800, and the Dade Dimension Xpand immunoassay. The ARCHITECT ass...

journal_title：Therapeutic drug monitoring

authors： Wallemacq P,Maine GT,Berg K,Rosiere T,Marquet P,Aimo G,Mengozzi G,Young J,Wonigeit K,Kretschmer R,Wermuth B,Schmid RW

更新日期：2010-04-01 00:00:00

abstract：:For the evaluation and interpretation of pharmacokinetic data reliable quantitative determinations are a requirement that can only be met by well-characterized and fully validated analytical methods. To cope with these requirements a method is being established that is based on an integrated and automated fiber-optic ...

journal_title：Therapeutic drug monitoring

authors： Gygax D,Botta L,Ehrat M,Graf P,Lefèvre G,Oroszlan P,Pfister C

更新日期：1996-08-01 00:00:00

abstract：:For many drugs, therapeutic drug monitoring (TDM) has become widely available and accepted as an important component of clinical decision-making in the intensive care nursery setting. This review analyzes the potential factors that can either expand or restrict neonatal TDM. A case is made for the development of pharm...

journal_title：Therapeutic drug monitoring

authors： Giacoia GP

更新日期：1990-07-01 00:00:00

abstract：BACKGROUND:Fosphenytoin, the diphosphate ester salt of phenytoin, is widely used to treat status epilepticus. The aim of this study was to develop a population pharmacokinetic (PPK) model to describe serum phenytoin concentrations after the intravenous administration of fosphenytoin in adult and elderly epileptic patie...

journal_title：Therapeutic drug monitoring

authors： Higuchi K,Yamashita D,Kashihara Y,Kakara M,Hirota T,Hirakawa M,Ieiri I

更新日期：2019-10-01 00:00:00

abstract：:Hydroxylation of midazolam (MDZ) is mediated almost exclusively by CYP3A isoforms. The authors describe a high-performance liquid chromatography assay involving MDZ, 1'-hydroxymidazolam, and 4-hydroxymidazolam in plasma. The compounds were eluted on an Ultrasphere ODS, 3-microm particle size, 7.5 cm x 4.6 mm reversed-...

journal_title：Therapeutic drug monitoring

authors： Carrillo JA,Ramos SI,Agundez JA,Martinez C,Benitez J

更新日期：1998-06-01 00:00:00

abstract：:Pharmacokinetics of intravenous and oral pulsed high-dose dexamethasone were studied in four patients with pemphigus vulgaris. Doses for dexamethasone were varied from 100 to 300 mg. Serum concentrations were measured by high-performance liquid chromatographic procedure with diode assay detection. Bioavailability was ...

journal_title：Therapeutic drug monitoring

authors： Tóth GG,Kloosterman C,Uges DR,Jonkman MF

更新日期：1999-10-01 00:00:00

abstract：:The study assessed the removal of mycophenolic acid (MPA) and its major glucuronide metabolite (MPAG) during continuous venovenous hemofiltration (CVVHF) and continuous venovenous hemodiafiltration (CVVHDF) in 4 heart transplant recipients treated for at least 6 days with mycophenolate mofetil (MMF) in addition to cyc...

journal_title：Therapeutic drug monitoring

authors： Cussonneau X,Bolon-Larger M,Prunet-Spano C,Bastien O,Boulieu R

更新日期：2008-02-01 00:00:00

abstract：:The monitoring of plasma olanzapine concentrations has been found to be an important and useful tool for optimizing psychiatric treatment. The present study investigated the effect that clinical factors, such as smoking and age, and functional polymorphisms of UGT1A4, CYP1A2, and CYP2D6 genes have on plasma olanzapine...

journal_title：Therapeutic drug monitoring

authors： Nozawa M,Ohnuma T,Matsubara Y,Sakai Y,Hatano T,Hanzawa R,Shibata N,Arai H

更新日期：2008-02-01 00:00:00

abstract：:The current article describes a new assay to measure thiopurine methyltransferase (TPMT) activity from red blood cells. This method is based on the measurement of the reaction product 6-methylmercaptopurine (6-MMP) by high-performance liquid chromatography (HPLC). 6-MMP is extracted by ethyl acetate with recoveries of...

journal_title：Therapeutic drug monitoring

authors： Menor C,Fueyo JA,Escribano O,Cara C,Fernández-Moreno MD,Román ID,Guijarro LG

更新日期：2001-10-01 00:00:00

abstract：:A neurophysiologic test battery (consisting of a 24-hour, seven-channel electroencephalogram [EEG], EEG spectral analysis, multiple sleep latency test, visual evoked potentials, critical flicker fusion, and visual contrast sensitivity) was administered twice to 16 patients with juvenile myoclonic epilepsy (JME) in a d...

journal_title：Therapeutic drug monitoring

authors： Sundqvist A,Nilsson BY,Tomson T

更新日期：1999-02-01 00:00:00

abstract：BACKGROUND:Hydroxychloroquine (HCQ) is an effective treatment for patients with cutaneous lupus erythematosus (CLE) or systemic lupus erythematosus (SLE) and has been used for these patients in more than 70 nations. However, in Japan, HCQ has not been approved for CLE or SLE. To establish an appropriate therapeutic reg...

journal_title：Therapeutic drug monitoring

authors： Morita S,Takahashi T,Yoshida Y,Yokota N

更新日期：2016-04-01 00:00:00

abstract：:A case of desmethylimipramine (DMI) overdose is described. The analysis of DMI and its main metabolite, 2-hydroxydesmethylimipramine (2-OH-DMI), in plasma was performed by high performance liquid chromatography with fluorescence detection. Characterization of the elimination kinetics of DMI by using the SAAM 25 comput...

journal_title：Therapeutic drug monitoring

authors： Spina E,Henthorn TK,Eleborg L,Nordin C,Säwe J

更新日期：1985-01-01 00:00:00

abstract：:A 7.5-year-old girl who was treated with phenobarbital (PHB) for epilepsy was admitted with decreased levels of consciousness. She had been known to have high PHB levels of unknown cause, without symptoms. Her PHB levels were very high, as expected, but primidone levels were also detected although she and her parents ...

journal_title：Therapeutic drug monitoring

authors： Tanoshima R,'t Jong GW,Merlocco A,Simpson J,Friedman JN,Colantonio D,Koren G

更新日期：2013-04-01 00:00:00