Abstract:
:1. We report a method for measuring the concentrations of haloperidol (HL) and its major active metabolite, reduced haloperidol (RHL), in human scalp hair. 2. Hair samples were obtained from 59 patients who had been taking HL at fixed daily doses for more than 4 months and whose compliance was good. A morning pre-dose plasma sample was also obtained from 48 of these patients. 3. The concentrations of HL and RHL in hair (ng mg-1 hair) correlated significantly both with the daily dose (micrograms kg-1 body weight) of HL (r = 0.682, P less than 0.001 for HL and r = 0.813, P less than 0.001 for RHL, n = 59) and with the trough concentration (ng ml-1) of the corresponding compound in plasma at steady state (r = 0.558, P less than 0.001 for HL and r = 0.563, P less than 0.001 for RHL, n = 48). The correlation coefficients were slightly higher using the sum of the concentrations of both substances in hair (r = 0.829 for the correlation with daily dose and r = 0.609 for that with trough concentration). 4. Hair from other patients, in whom the dosage of HL had been changed within a few months prior to sampling, was sectioned into 1 cm-long portions successively from the roots and the concentrations of both compounds in each portion were measured. Assuming a growth rate of 1-1.5 cm/month, a history of individual dosage could be deduced in all patients from the distribution of the drug and metabolite along the single hair length.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Br J Clin Pharmacoljournal_title
British journal of clinical pharmacologyauthors
Matsuno H,Uematsu T,Nakashima Mdoi
10.1111/j.1365-2125.1990.tb03618.xsubject
Has Abstractpub_date
1990-02-01 00:00:00pages
187-94issue
2eissn
0306-5251issn
1365-2125journal_volume
29pub_type
杂志文章abstract:AIMS:Inflammation reduces hepatic clearance of many drugs with unknown therapeutic consequences. This study was carried out to examine the effect of rheumatoid arthritis (RA) on the pharmacokinetics and pharmacodynamics of verapamil. METHODS:Eight RA patients were age- and sex-matched with eight healthy volunteers. Th...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1046/j.1365-2125.2000.00314.x
更新日期:2000-12-01 00:00:00
abstract::Systemic cardiovascular effects during chronic treatment with topical minoxidil vs placebo were evaluated using a double-blind, randomized design for two parallel groups (n = 20 for minoxidil, n = 15 for placebo). During 6 months of follow-up, blood pressure did not change, whereas minoxidil increased heart rate by 3-...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2125.1988.tb03410.x
更新日期:1988-10-01 00:00:00
abstract:AIM:We investigated whether moxifloxacin-induced QTc prolongations in Japanese and Caucasian healthy male volunteers were significantly different. METHODS:A two period, randomized, crossover, ICH-E14-compliant thorough QT (TQT) study compared placebo-corrected changes in QTc interval from baseline (ΔΔQTc F) and concen...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1111/bcp.12684
更新日期:2015-09-01 00:00:00
abstract:AIMS:The efflux transporter P-glycoprotein (ABCB1) acts at the blood-brain barrier (BBB) to restrict the distribution of many different drugs from blood to the brain. Previous data suggest an age-associated decrease in the expression and function of ABCB1 at the BBB. In the present study, we investigated the influence ...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1111/bcp.13301
更新日期:2017-09-01 00:00:00
abstract::1. We studied the effects of pre-treatment with oral indomethacin (25 mg four times daily for 3 days) on the pharmacokinetics, haemodynamics and diuretic properties of oral felodipine (10 mg single dose) in 12 healthy male volunteers using a placebo controlled double-blind four-way crossover protocol. 2. Felodipine wi...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1365-2125.1988.tb05295.x
更新日期:1988-11-01 00:00:00
abstract::1 The effect of an intravenous bolus of labetalol (0.6-1.6 mg/kg body weight) on central and peripheral haemodynamics was studied in nine subjects with essential hypertension and in eleven subjects with chronic renal disease and hypertension. 2 The BP reduction amounting to 20/13 mmHg was entirely due to the lowering ...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1979.tb04764.x
更新日期:1979-04-01 00:00:00
abstract:AIMS:Although cysteamine was first used in the treatment of cystinosis in 1976 and approved by the FDA as cysteamine bitartrate (Cystagon) in 1994, surprisingly little pharmacological data are available for this compound. Cysteamine and its related drugs are currently being evaluated for the treatment of Huntington's a...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.2006.02734.x
更新日期:2007-01-01 00:00:00
abstract:AIMS:The aim of this study was to use data from an experimental induced blood stage malaria clinical trial to characterize the antimalarial activity of the new compound Actelion-451840 using pharmacokinetic/pharmacodynamic (PK/PD) modelling. Then, using simulations from the model, the dose and dosing regimen necessary ...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/bcp.12962
更新日期:2016-08-01 00:00:00
abstract::1 The effects of propranolol and atenolol given in random order in a cross-over study to fifteen patients with essential hypertension have been studied. 2 Both drugs were effective in lowering blood pressure and side effects were not markedly different. 3 There was no change in exchangeable sodium or potassium or in t...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2125.1980.tb00501.x
更新日期:1980-07-01 00:00:00
abstract:AIM:To review the literature on adverse drug reactions (ADRs) in children with respect to occurrence, seriousness, type, therapeutic group, age and gender of the child and category of reporter. METHODS:Medline and Embase databases were searched from origin and updated until February 2010. We included empirically based...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2125.2010.03682.x
更新日期:2010-10-01 00:00:00
abstract:AIMS:Korean red ginseng (unskinned Panax ginseng before it is steamed or otherwise heated and subsequently dried) is one of the most widely used herbal remedies. This systematic review evaluates the current evidence for the effectiveness of red ginseng for treating erectile dysfunction. METHODS:Systematic searches wer...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,meta分析,评审
doi:10.1111/j.1365-2125.2008.03236.x
更新日期:2008-10-01 00:00:00
abstract::1. The antisecretory responses to pH-feedback controlled (maximum dose 800 mg 24 h-1) and fixed-dose (0.25 mg kg-1 h-1) continuous infusions of ranitidine were compared in a randomised, placebo-controlled, cross-over study in 10 healthy male volunteers. 2. To assess tolerance during repeated dosing with ranitidine, th...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2125.1992.tb04075.x
更新日期:1992-05-01 00:00:00
abstract:AIMS:The aim was to examine relationships between total and unbound mycophenolic acid (MPA) and prednisolone exposure and clinical outcomes in patients with lupus nephritis. METHODS:Six blood samples were drawn pre- and at 1, 2, 4, 6 and 8 h post-dose and total and unbound MPA and prednisolone pre-dose (C0 ), maximum ...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1111/bcp.12678
更新日期:2015-11-01 00:00:00
abstract::1 Six previously untreated emergency admissions to hospital with severe hypertension were given oral treatment with labetalol. 2 Pre-treatment diastolic BP exceeded 130 mmHg, and clinical evidence of either accelerated hypertension or encephalopathy was present. 3 Hypotensive response after treatment followed two patt...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:
更新日期:1979-01-01 00:00:00
abstract::The effect of metronidazole, at a dose of 1.2 g daily, on theophylline disposition was studied in 10 healthy adult volunteers. Neither theophylline half-life, volume of distribution nor total body clearance was altered by the anti-microbial. It is concluded that metronidazole does not impair theophylline metabolism de...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1987.tb03146.x
更新日期:1987-07-01 00:00:00
abstract:BACKGROUND:Maraviroc, a noncompetitive antagonist of the CCR5 coreceptor, was recently approved in the USA as a treatment of HIV infection. For antiretroviral agents that target the virus, antiviral effect can be related to some extent to plasma drug concentrations. For CCR5 antagonists that target the host cells, rece...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,meta分析
doi:10.1111/j.1365-2125.2008.03140.x
更新日期:2008-04-01 00:00:00
abstract::Quantitative systems pharmacology (QSP) is a relatively new discipline within modelling and simulation that has gained wide attention over the past few years. The application of QSP models spans drug-target identification and validation, through all drug development phases as well as clinical applications. Due to thei...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1111/bcp.14451
更新日期:2020-07-04 00:00:00
abstract::The effects of single doses of anhydrous caffeine (250 mg and 500 mg) and placebo on physiological, psychological measures and subjective feelings were studied in a double-blind, cross-over study in nine healthy subjects who had abstained from caffeine-containing beverages for 24 h before each occasion. Caffeine and c...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2125.1986.tb02883.x
更新日期:1986-07-01 00:00:00
abstract:AIMS:To assess the utility of human hepatic microsomes for predicting in vivo intrinsic clearance (CLint ) via the use of four cytochrome P450 2C9 substrates: phenytoin, tolbutamide (S)-ibuprofen (two pathways) and diclofenac, and to examine the role of exogenous albumin within the microsomal incubation. METHODS:V max...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1046/j.1365-2125.1999.00935.x
更新日期:1999-06-01 00:00:00
abstract::1. Blood and urine concentrations of the macrolide immunosuppressant FK506 and its metabolites were measured in seven orthotopic liver transplant patients after the first oral dose of FK506 (0.04 +/- 0.02 mg kg-1) used as primary immunosuppressant. A specific h.p.l.c.-MS assay was used, allowing the measurement of par...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1365-2125.1994.tb04398.x
更新日期:1994-12-01 00:00:00
abstract:AIMS:The use of nonsteroidal anti-inflammatory drugs (NSAIDs) in patients treated with oral anticoagulants is generally discouraged due to the risk of interactions that could increase the risk of bleeding complications. Available data suggest the NSAID, nabumetone, does not produce such an interaction. We investigated ...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-2125.1999.00916.x
更新日期:1999-04-01 00:00:00
abstract::1 Norfenfluramine is thought to be the major active metabolite of fenfluramine in man. Therefore its in vitro effect on lipogenesis in human adipose tissue from twelve patients was investigated. 2 Although inhibition of lipogenesis was demonstrated, the concentrations of norfenfluramine necessary (>1 mM) were much hig...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1974.tb00279.x
更新日期:1974-10-01 00:00:00
abstract:AIMS:To summarize and extend the main conclusions and recommendations relevant to drug management during acute kidney disease (AKD) as agreed at the 16th Acute Disease Quality Initiative (ADQI) consensus conference. METHODS:Using a modified Delphi method to achieve consensus, experts attending the 16th ADQI consensus ...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/bcp.13449
更新日期:2018-02-01 00:00:00
abstract::1. The absorption and disposition of paracetamol was investigated in 10 healthy male Thai vegetarians and 10 similar non-vegetarians following an oral dose of 20 mg kg-1. 2. The absorption rate of paracetamol was significantly impaired in the vegetarians compared with the non-vegetarians as shown by a lower mean Cmax ...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1993.tb04223.x
更新日期:1993-09-01 00:00:00
abstract::1 Soluble aspirin, 600 mg and 1200 mg, and placebo were compared in a double-blind, cross-over study in 12 patients with post-operative pain following removal of impacted lower third molars. 2 Significant analgesia after 600 mg aspirin occurred only at 45 min after administration, whereas significant analgesia after 1...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1365-2125.1982.tb01870.x
更新日期:1982-06-01 00:00:00
abstract:AIMS:To establish the dose-response for pharmacodynamics (bronchodilatation), safety and pharmacokinetics for a nebulized formulation of the long acting muscarinic antagonist glycopyrrolate (EP-101) with a high efficiency nebulizer in patients with chronic obstructive pulmonary disease (COPD). METHODS:Patients with mo...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1111/bcp.12517
更新日期:2015-03-01 00:00:00
abstract::1. The conversion of haloperidol (HAL) to reduced haloperidol (RHAL) and then back to HAL has been established in vivo and observed in psychiatric patients. The reduction of HAL to RHAL is known to be catalysed by a ketone reductase, while the nature of oxidation back to HAL is the subject of the present study. 2. We ...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1991.tb05588.x
更新日期:1991-06-01 00:00:00
abstract::1. The new intravenous bisphosphonate drug aminohydroxypropylidine bisphosphonate (APD) is effective in treating the hypercalcaemia of malignant disease, but the optimum dose regimen is not yet established. We have treated twenty-seven patients with malignant hypercalcaemia (corrected calcium greater than 3.00 mmol l-...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2125.1989.tb05426.x
更新日期:1989-09-01 00:00:00
abstract::We have developed a method of monitoring plasma concentrations of antiepileptic drugs which uses salivary samples, and is suitable for home monitoring in children. To validate the method, paired plasma and saliva samples from 39 children aged between 2 and 15 years were assayed for carbamazepine and its active metabol...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1993.tb05700.x
更新日期:1993-03-01 00:00:00
abstract:ADVERSE EVENT:Repeated and prolonged episodes of central apnoea and hypoxia after receiving intravenous morphine for analgesia and ketamine for sedation. DRUG IMPLICATED:Intravenous morphine sulfate. THE PATIENT:Previously healthy 12-year-old male with no history of sleep apnoea who presented with distal tibia and fi...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/bcp.13779
更新日期:2019-01-01 00:00:00