A sensitive gas chromatographic assay for amitriptyline and nortriptyline in plasma.

abstract：PURPOSE:To investigate the predictive value of the risperidone and venlafaxine metabolic ratios and CYP2D6 genotype. METHODS:The determination of risperidone, 9-hydroxyrisperidone, and venlafaxine, O-desmethylvenlafaxine, N-desmethylvenlafaxine and CYP2D6 genotype was performed in 425 and 491 patients, respectively. T...

journal_title：Therapeutic drug monitoring

authors： Mannheimer B,Haslemo T,Lindh JD,Eliasson E,Molden E

更新日期：2016-02-01 00:00:00

abstract：:The effect of plasma exchange (PE) on the pharmacokinetics of flumequine (Apurone) was studied in eight patients receiving a single oral dose of 800 mg. The maximum concentration (38 micrograms/ml) and time to maximum concentration (2.6 h) values were not significantly altered by PE beginning 3 h after administration ...

journal_title：Therapeutic drug monitoring

authors： Royer-Morrot MJ,Gérard A,Zhiri A,Schooneman F,Dureux JB,Royer RJ

更新日期：1991-07-01 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：BACKGROUND:Colistin is increasingly used as the last therapeutic option for the treatment of multidrug-resistant, Gram-negative bacterial infections. To ensure safe and efficacious use of colistin, therapeutic drug monitoring (TDM) is needed due to its narrow therapeutic window. This study aimed to evaluate the pharmac...

journal_title：Therapeutic drug monitoring

authors： Kim EJ,Oh J,Lee K,Yu KS,Chung JY,Hwang JH,Nam EY,Kim HS,Kim M,Park JS,Song KH,Kim ES,Song J,Kim HB

更新日期：2019-02-01 00:00:00

abstract：:The aim of this study was to investigate the use of psychotropic medication and therapeutic drug monitoring in a high-security psychiatric unit and to compare the doses and serum concentrations both with the recommended intervals and with the doses and serum concentrations in a control group. One hundred thirty-two pa...

journal_title：Therapeutic drug monitoring

authors： Castberg I,Spigset O

更新日期：2008-10-01 00:00:00

abstract：:Ergotamine has been used for therapeutic purposes since the 1950s, usually to treat vascular headache. It is highly toxic and in large, repeated doses can produce all the symptoms of ergot poisoning. A selective and sensitive method, based on liquid chromatography-tandem mass spectrometry (LC-MS2), has been developed ...

journal_title：Therapeutic drug monitoring

authors： Favretto D,Frison G,Vogliardi S,Ferrara SD

更新日期：2007-06-01 00:00:00

abstract：BACKGROUND:Tacrolimus, a critical dose drug, is widely used in transplantation. Knowing the contribution of genetic factors, which significantly influence tacrolimus variability, is beneficial in the personalization of its starting dose. The significant impact of CYP3A5*3 polymorphisms on tacrolimus exposure has been r...

journal_title：Therapeutic drug monitoring

authors： Phupradit A,Vadcharavivad S,Ingsathit A,Kantachuvesiri S,Areepium N,Sra-Ium S,Auamnoy T,Sukasem C,Sumethkul V,Kitiyakara C

更新日期：2018-10-01 00:00:00

abstract：:Monitoring of serum voriconazole concentrations has been proposed to optimize therapeutic effect and minimize toxicity. However, little is known about the clinical use of voriconazole therapeutic drug monitoring (TDM) by treating physicians. Four hundred seventy-eight episodes corresponding with 161 adult patients (me...

journal_title：Therapeutic drug monitoring

authors： Miyakis S,van Hal SJ,Solvag CJ,Ray J,Marriott D

更新日期：2010-10-01 00:00:00

abstract：:A population pharmacokinetic model was developed after administration of orogastric and/or intravenous indomethacin for the treatment of patent ductus arteriosus in preterm infants. Plasma indomethacin concentrations (n=227) were obtained from 90 preterm infants of median gestational age 27 weeks, mean postnatal age o...

journal_title：Therapeutic drug monitoring

authors： Al Za'abi M,Donovan T,Tudehope D,Woodgate P,Collie LA,Charles B

更新日期：2007-12-01 00:00:00

abstract：:The ability of a pharmacokinetic/pharmacodynamic Bayesian forecasting computer program to predict prothrombin response to warfarin therapy was investigated. The performance of the program was evaluated retrospectively in an inpatient study population of 45 subjects. Predictions of prothrombin response at discharge, ba...

journal_title：Therapeutic drug monitoring

authors： Svec JM,Coleman RW,Mungall DR,Ludden TM

更新日期：1985-01-01 00:00:00

abstract：:It has been reported in scientific data that fluorescence polarization immunoassay (FPIA) results in overestimation of vancomycin in patients with renal failure. This overestimation is caused by interference of the degradation product, CDP-1, in this assay. Increases in vancomycin levels have also been reported in pat...

journal_title：Therapeutic drug monitoring

authors： Sym D,Smith C,Meenan G,Lehrer M

更新日期：2001-08-01 00:00:00

abstract：:C(2) Cyclosporine (CsA) level, as a surrogate of area under the time-concentration curve (AUC) 0-4 hours, is a good predictor of drug absorption and clinical outcome after kidney transplantation. It has been difficult to define the optimal C(2) level in the individual case and given the broad range of C(2) due to inte...

journal_title：Therapeutic drug monitoring

authors： Morales J,Buckel E,Fierro A,Zehnder C,Herzog C,Mañalich J

更新日期：2003-06-01 00:00:00

abstract：:The analysis of pentamidine in whole blood, plasma, and urine by liquid chromatography is described. Extraction was made with a mixture of acetonitrile and chloroform followed by back-extraction into phosphate buffer. A reversed-phase chromatographic system with fluorescence detection was used. The precision of the me...

journal_title：Therapeutic drug monitoring

authors： Ericsson O,Rais M

更新日期：1990-07-01 00:00:00

abstract：:For the accuracy of routine monitoring of digoxin and digitoxin it seems important to get information on the cross-reactivity of endogenous digitalis-like substances (EDLS). To obtain EDLS, urine was passed on Sep-Pak columns and eluted in fractions by increasing concentrations of acetonitrile. Dilution series of two ...

journal_title：Therapeutic drug monitoring

authors： Vinge E,Ekman R

更新日期：1988-01-01 00:00:00

abstract：:The emergence of point-of-care assays enabling bedside testing such as the VerifyNow P2Y12 system might prove useful in clinical settings. The aim of this study was to evaluate the ability of the VerifyNow P2Y12 assay to estimate the inhibition of platelet aggregation provided by clopidogrel in the absence of baseline...

journal_title：Therapeutic drug monitoring

authors： Lordkipanidzé M,Pharand C,Nguyen TA,Schampaert E,Diodati JG

更新日期：2008-06-01 00:00:00

abstract：:Major advances in immunosuppression and reductions in the rates of acute rejection have led to increasing graft and patient survival rates during the past two decades. Chronic dysfunction of the renal allograft, however, remains a major clinical problem and probably represents the end result of the complex interplay b...

journal_title：Therapeutic drug monitoring

authors： Kaplan B,Srinivas TR,Meier-Kriesche HU

更新日期：2002-02-01 00:00:00

abstract：BACKGROUND:Serum trough concentrations as the sole means of monitoring safety and efficacy of vancomycin are insufficient. The daily area under the curve (AUC24) of serum concentration versus time to minimum inhibitory concentration (MIC) ratio of greater than 400 mg × h/L has emerged as a more robust dosing target. A ...

journal_title：Therapeutic drug monitoring

authors： Lewis P

更新日期：2018-06-01 00:00:00

abstract：:To evaluate the reliability and practical use of saliva for therapeutic drug monitoring of the antifungal agent voriconazole in immunocompromised patients, a paired-sample study was conducted. Plasma and saliva trough levels were measured in seven children and nine adults who required treatment for the prevention or t...

journal_title：Therapeutic drug monitoring

authors： Michael C,Bierbach U,Frenzel K,Lange T,Basara N,Niederwieser D,Mauz-Körholz C,Preiss R

更新日期：2010-04-01 00:00:00

abstract：:The interlaboratory variability in the assay of theophylline and various anticonvulsant drugs was evaluated in a 16-month prospective study by using two independent experimental approaches: (a) a conventional method based on the distribution of quality control (QC) lyophilized human sera spiked with the test drugs (ph...

journal_title：Therapeutic drug monitoring

authors：

更新日期：1991-03-01 00:00:00

abstract：:The authors report preliminary findings on the potential contribution of CYP2C19 isoenzyme to the human metabolism of N-desmethylclobazam (N-CLB), the main active metabolite of clobazam (CLB), a benzodiazepine frequently used as add-on therapy in patients with refractory epilepsy. Two children on CLB treatment showing...

journal_title：Therapeutic drug monitoring

authors： Contin M,Sangiorgi S,Riva R,Parmeggiani A,Albani F,Baruzzi A

更新日期：2002-12-01 00:00:00

abstract：BACKGROUND:The International Interlaboratory Quality Control PROGRAM for Therapeutic Drug Monitoring of Antiretroviral Drugs in Human Plasma/Serum was initiated in 1999. We have previously published our experience during the first 10 years of the PROGRAM. Since 2010, 3 newly developed antiretroviral agents have been ad...

journal_title：Therapeutic drug monitoring

authors： Burger D,Krens S,Robijns K,Aarnoutse R,Brüggemann R,Touw D

更新日期：2014-12-01 00:00:00

abstract：:The pharmacokinetics of rifampicin (RMP) and its principal active metabolite desacetylrifampicin (DA-RMP) were studied in six subjects, ranging in age from 78 to 95 years, after single oral doses of 10 mg/kg RMP. The maximal plasma concentrations (Cmax) and the elimination half-lives (t 1/2 beta) of RMP are 8.83 +/- 1...

journal_title：Therapeutic drug monitoring

authors： Advenier C,Gobert C,Houin G,Bidet D,Richelet S,Tillement JP

更新日期：1983-01-01 00:00:00

abstract：BACKGROUND:Δ9-tetrahydrocannabinol (THC) and cannabidiol (CBD) time courses in serum and physiological and behavioral effects associated with smoking 1 or 4 "light cannabis" cigarettes were studied. Biomarkers to differentiate light cannabis versus illegal and medical cannabis use were also investigated. METHODS:Sera ...

journal_title：Therapeutic drug monitoring

authors： Pichini S,Mannocchi G,Berretta P,Zaami S,Pirani F,Pacifici R,Busardò FP

更新日期：2020-02-01 00:00:00

abstract：BACKGROUND:Despite significant interindividual variability in prednisolone pharmacokinetics and potentially serious consequences with inadequate or excessive exposure, monitoring of prednisolone levels is not employed to guide therapy. As ultrahigh-performance liquid chromatography-tandem mass spectrometry methods can ...

journal_title：Therapeutic drug monitoring

authors： Yates CJ,Barraclough KA,McWhinney BC,Ungerer JP,Fullinfaw RO,Colman PG,Fourlanos S,Cohney SJ

更新日期：2014-02-01 00:00:00

abstract：OBJECTIVE:The aim of the study is to characterize the pharmacokinetics and the gastrointestinal side effect profiles of enteric-coated mycophenolate sodium (EC-MPS) in de novo kidney transplant patients of Hispanic ethnicity. MATERIALS AND METHODS:The pharmacokinetic study of EC-MPS was conducted in 11 de novo kidney ...

journal_title：Therapeutic drug monitoring

authors： Shah T,Tellez-Corrales E,Yang JW,Qazi Y,Wang J,Wilson J,Hutchinson I,Min DI

更新日期：2011-02-01 00:00:00

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：:Cefsulodin is a third-generation cephalosporin with a unique specificity for Pseudomonas aeruginosa. To study the pharmacokinetics of this agent in children, a rapid and sensitive high-performance liquid chromatographic micromethod was developed for plasma and urine. Protein was precipitated from plasma with one volum...

journal_title：Therapeutic drug monitoring

authors： Ackers IM,Myers CM,Blumer JL

更新日期：1984-01-01 00:00:00

abstract：:The authors describe a rapid, useful, specific, and very sensitive high-performance liquid chromatographic assay for the determination of fluvastatin (FV) level using atorvastatin as the internal standard (IS). After a simple deproteinization of 1.0 mL of plasma with acetonitrile, the drug and IS were extracted with t...

journal_title：Therapeutic drug monitoring

authors： Al-Rawithi S,Hussein RF,Alzahrani A

更新日期：2003-02-01 00:00:00

abstract：:The high incidence of psychiatric illness in the postpartum period and the increasing percentage of women who breastfeed has focused attention on the treatment of breastfeeding women with psychotropic medications and, additionally, the exposure of nursing infants to these medications. Consequently, there has been an i...

journal_title：Therapeutic drug monitoring

authors： Hostetter AL,Stowe ZN,Cox M,Ritchie JC

更新日期：2004-02-01 00:00:00

abstract：:The objective of this study was to conduct an assessment of patient and parental preferences and an economic analysis of hospital costs in sampling blood and saliva for therapeutic drug monitoring (TDM). Costs and preferences were evaluated in the course of a study, which compared anticonvulsant concentrations in bloo...

journal_title：Therapeutic drug monitoring

authors： Gorodischer R,Burtin P,Hwang P,Levine M,Koren G

更新日期：1994-10-01 00:00:00