Abstract:
:The irritable bowel syndrome (IBS) remains a therapeutic challenge in part because of the limited understanding of the pathophysiology. The placebo response rate varies in randomized controlled trials from 20 to 70%, and can persist for up to at least 1 year. It is contentious whether dietary fibre and bulking agents relieve the symptoms of IBS; constipation probably improves. Anticholinergic and antispasmodic agents are of questionable benefit in IBS despite positive meta-analyses of poor quality trials. A meta-analysis concluded that the tricyclic antidepressants were superior to placebo in IBS, although the individual trial results were variable. Selective serotonin reuptake inhibitors are of uncertain benefit. Laxatives are used for constipation but probably poorly control the IBS symptom complex. Loperamide is superior to placebo in improvement of diarrhoea but not abdominal pain in IBS. Tegaserod is a well- tolerated aminoguanidine indole derivative of serotonin that is a partial 5HT4-receptor agonist with prokinetic properties; a therapeutic gain over placebo of 5% to 15% has been observed in constipation-predominant IBS in females. Alosetron is a 5HT3-receptor antagonist that is efficacious in females with diarrhoea-predominant IBS, with a 12% to 17% therapeutic gain; the risk of ischaemic colitis is 1 in 350, with very severe constipation occurring in about 1 in 1000. Optimizing study design remains a challenge in IBS. New visceral analgesic and motility modifying agents, as well as anti-inflammatory agents are in trials, and hopefully additional efficacious therapeutic options for patients with IBS will soon emerge.
journal_name
Br J Clin Pharmacoljournal_title
British journal of clinical pharmacologyauthors
Talley NJdoi
10.1046/j.1365-2125.2003.01966.xkeywords:
subject
Has Abstractpub_date
2003-10-01 00:00:00pages
362-9issue
4eissn
0306-5251issn
1365-2125pii
1966journal_volume
56pub_type
杂志文章,评审abstract:AIMS:To test the existence of an association between reports of hypoglycaemia and angiotensin converting enzyme inhibitors, in a spontaneous reports database. METHODS:The French Pharmacovigilance database was examined for an association between adverse drug reaction reports mentioning hypoglycaemia, and angiotensin co...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1046/j.1365-2125.1997.00615.x
更新日期:1997-11-01 00:00:00
abstract:AIMS:The role of CYP pharmacogenetics in the bioactivation of cyclophosphamide is still controversial. Recent clinical studies have suggested a role for either CYP2C19 or CYP2B6. The aim of this study was to clarify the role of these pharmacogenes. METHODS:We used a combined in vitro-in vivo approach to determine the ...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.2010.03789.x
更新日期:2010-12-01 00:00:00
abstract:AIMS:The aim of the present study was to assess the effect of policy interventions - i.e. reimbursement decisions, guidelines and regional recommendations - on the prescribing of oral anticoagulant treatment in patients with atrial fibrillation (AF). METHODS:Interrupted time series analyses were carried out using mont...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/bcp.13150
更新日期:2017-03-01 00:00:00
abstract::1. The pharmacokinetics of proguanil were evaluated in patients with acute P. falciparum malaria receiving concomitantly proguanil hydrochloride and atovaquone. The population consisted of 203 Blacks, 112 Orientals and 55 Malays; 274 males and 96 females. Of the 370 patients, 114 and 256 patients were classified as 'p...
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.1365-2125.1996.tb00114.x
更新日期:1996-11-01 00:00:00
abstract:AIMS:The purposes of this work were to: (1) compare pharmacokinetic (PK) parameters for hydroxycarbamide in children receiving their first dose (HCnew ) vs. those receiving chronic therapy (HCchronic ), (2) assess the external validity of a published PK dosing strategy, and (3) explore the accuracy of dosing strategies...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1111/bcp.13426
更新日期:2018-07-01 00:00:00
abstract::1 The disposition of prazosin following oral and intravenous administration has been studied in seven young and seven elderly men, all of whom were in good health and living independently in the community. 2 The elimination half-life (min) of prazosin was 123 +/- 19.4 (s.d.) in the young and 194 +/- 36 in the elderly ...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1981.tb01234.x
更新日期:1981-09-01 00:00:00
abstract::1. Dose response relationships for salbutamol and a new bronchodilator drug NAB 365 have been obtained in patients with reversible airways obstruction. These show that the latter is about one hundred times more potent than the former. 2. NAB 365 has a very long half-life. The implications of this are discussed. ...
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.1365-2125.1977.tb00669.x
更新日期:1977-02-01 00:00:00
abstract::The plasma concentrations of the tetracyclic antidepressant maprotiline and its effect on histamine-induced bronchoconstriction were measured after single (50 mg) and multiple (50 mg twice daily) oral doses in healthy subjects. Histamine-induced bronchoconstriction was abolished after a single dose of maprotiline and ...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1994.tb04293.x
更新日期:1994-04-01 00:00:00
abstract::A double-blind, crossover study was carried out on the acceptability of three doses of brotizolam (0.125, 0.25 and 0.5 mg) in chronic insomniacs aged between 21 and 75 years (33 men: 42 women). Patients reported a shorter time to fall asleep and less nocturnal awakenings. Improvement in sleep was evident during the fi...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1365-2125.1983.tb02319.x
更新日期:1983-01-01 00:00:00
abstract::The deployment of artesunate for severe malaria and the artemisinin combination therapies (ACTs) for uncomplicated malaria has been a major advance in antimalarial therapeutics. These drugs have reduced treated mortality, accelerated recovery and reduced treatment failure rates and transmission from the treated infect...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1111/bcp.14474
更新日期:2020-07-12 00:00:00
abstract::1. The effect of magnesium hydroxide on the absorption and efficacy of two glibenclamide preparations was investigated in healthy volunteers in two separate studies, using a randomized cross-over design with two phases. 2. A single dose of magnesium hydroxide (850 mg) or water only (150 ml) was given immediately after...
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.1365-2125.1991.tb03884.x
更新日期:1991-08-01 00:00:00
abstract::The effects of ranitidine on the pharmacokinetics of metoprolol were examined in two studies. In the first study, pharmacokinetics of single doses of metoprolol were examined in six subjects before, during and after ranitidine administration for 1 week. Peak concentrations of metoprolol were increased on ranitidine bu...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1985.tb02634.x
更新日期:1985-02-01 00:00:00
abstract:AIMS:Canagliflozin is a recently approved drug for use in the treatment of type 2 diabetes. The potential for canagliflozin to cause clinical drug-drug interactions (DDIs) was assessed. METHODS:DDI potential of canagliflozin was investigated using in vitro test systems containing drug metabolizing enzymes or transport...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/bcp.13186
更新日期:2017-05-01 00:00:00
abstract:AIMS:To examine the feasibility of using the human iris in vivo for the assessment of the interaction between tyramine and monoamine oxidase (MAO) inhibitors. To examine the relative roles of the two forms of MAO in terminating the response to sympathomimetic amines in the iris, by comparing the effects of single oral ...
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.1365-2125.1998.00729.x
更新日期:1998-06-01 00:00:00
abstract:AIMS:The aim was to describe the utilization of antidiabetic agents, in terms of persistence and regimen change, in the management of a cohort of newly treated type 2 diabetes patients and to investigate associated socio-demographic and treatment factors. METHODS:A population-based retrospective cohort study was condu...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/bcp.12573
更新日期:2015-06-01 00:00:00
abstract:AIMS:The aim of the present study was to evaluate the disposition of metoprolol after oral administration of an immediate and controlled-release formulation before and after Roux-en-Y gastric bypass (RYGB) surgery in the same individuals and to validate a physiologically based pharmacokinetic (PBPK) model for predictin...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1111/bcp.12666
更新日期:2015-11-01 00:00:00
abstract:AIM:To investigate the safety, tolerability, pharmacokinetics and pharmacodynamics of the highly selective oral p38alpha/beta mitogen-activated protein (MAP) kinase inhibitor Org 48,775-0 in a first-in-human study. METHODS:In the single ascending dosing (SAD) study, an oral dose of Org 48,775-0 (0.3-600 mg) was evalua...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/bcp.14655
更新日期:2020-11-17 00:00:00
abstract::There is concern in the UK about nonmedical use (NMU) of alprazolam (Xanax). We investigated the epidemiology of alprazolam NMU compared with diazepam using data from the Survey of Non-Medical Use of Prescription Drugs (NMURx) programme (collected 28 September-1 December 2017). The survey included 10 019 respondents a...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/bcp.13959
更新日期:2019-08-01 00:00:00
abstract::The prevalence of putative poor metaboliser (PM) phenotypes of proguanil oxidation in Caucasian populations is 3-10%. The PM frequency in Oriental populations is unknown. In this study the plasma metabolic ratios of proguanil and dapsone to their principal metabolites cycloguanil and monoacetyldapsone were determined ...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1994.tb04241.x
更新日期:1994-01-01 00:00:00
abstract:AIMS:In order to evaluate a hypothesized protective effect of the use of HMG Co-A reductase inhibitors (statins) on the development of Type 2 diabetes, we conducted a nested case-control study based on data from the UK-based General Practice Research Database (GPRD). METHODS:We identified a population of adults 30-79 ...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.2004.02142.x
更新日期:2004-09-01 00:00:00
abstract:AIMS:To develop a population pharmacokinetic model for lopinavir in combination with ritonavir, in which the interaction between both drugs was characterized, and in which relationships between patient characteristics and pharmacokinetics were identified. METHODS:The pharmacokinetics of lopinavir in combination with r...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.2005.02455.x
更新日期:2005-10-01 00:00:00
abstract::The effects of bopindolol, a new beta-adrenoceptor blocker, on the exercise tolerance of 12 in-patients, mean age 57 (5 years), with stable angina pectoris and documented coronary artery disease were evaluated. All patients received on 4 different days a single oral dose of bopindolol 0.5 mg, bopindolol 1.0 mg, bopind...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1991-12-01 00:00:00
abstract:AIMS:Women experience more adverse drug reactions (ADR) to antiretroviral therapy than men. This may be attributed to higher plasma concentrations of protease inhibitors due to pharmacokinetic interactions with hormonal preparations. Thus, in the present study we aimed to investigate the influence of oral contraceptive...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1365-2125.2003.01983.x
更新日期:2004-03-01 00:00:00
abstract::1. The pharmacokinetics of didanosine, trimethoprim, and sulphamethoxazole were evaluated in ten HIV seropositive asymptomatic patients as single agents and upon coadministration of single doses. 2. Using a randomized, balanced incomplete block crossover study with at least a 1-week washout period between successive 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.1365-2125.1996.tb00184.x
更新日期:1996-03-01 00:00:00
abstract:AIM:To investigate the effect of the P-glycoprotein inhibitor verapamil on the pharmacokinetics and pharmacodynamics of dabigatran etexilate (DE). METHOD:In this two part multiple crossover trial in 40 healthy subjects, DE 150 mg was given alone or with verapamil at different doses, duration of treatment (single vs. m...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2125.2012.04453.x
更新日期:2013-04-01 00:00:00
abstract::1. Kenyan children with uncomplicated malaria given oral halofantrine (HF; non-micronised suspension; 8 mg base kg-1 body weight 6 hourly for three doses) showed wide variation in the disposition of HF and desbutylhalofantrine (HFm). 2. Eight Kenyan children with severe (prostrate) falciparum malaria who were receivin...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1365-2125.1995.tb04450.x
更新日期:1995-03-01 00:00:00
abstract::Using a variety of radioimmunoassay methods, plasma digoxin concentrations were measured in two patients before and after the administration of ovine Fab antibody fragments to remove the effects of digoxin. Gross method-dependent anomalies in the results due to in vitro drug interaction were observed. More widespread ...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1983.tb02194.x
更新日期:1983-10-01 00:00:00
abstract::The effect of urinary pH on flecainide excretion has been evaluated in six healthy subjects after a single oral dose of 300 mg flecainide administered as the acetate salt. The cumulative urinary excretion of unchanged flecainide under acidic conditions (134.0 +/- 16.1 mg; mean +/- s.e. mean) was significantly higher t...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1984.tb02370.x
更新日期:1984-04-01 00:00:00
abstract:AIMS:Since suspicion has been raised that administration of an oral live attenuated rotavirus vaccine may increase the risk of intussusception in young children, there has been concern about the possible effects of oral polio vaccine. The aim of the study was to evaluate the relationship between oral attenuated polio v...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1046/j.1365-2125.2001.00090.x
更新日期:2001-10-01 00:00:00
abstract:AIMS:Although genetic, clinical and demographic factors have been shown to explain approximately half of the inter-individual variability in warfarin dose requirement in adults, less is known about causes of dose variability in children. This study aimed to identify and quantify major genetic, clinical and demographic ...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/bcp.12308
更新日期:2014-07-01 00:00:00