Abstract:
:To determine if ordinary doses of nitrates produce a significant increase in methemoglobin, methemoglobin levels were measured in 59 randomly selected patients with coronary artery disease and unstable angina pectoris who were receiving organic nitrate therapy. Patients were taking isosorbide dinitrate, 2% nitroglycerin ointment, or a combination of the two. Patients were subdivided according to whether they were using one (group A) or more than one (group B) organic nitrate preparations. These results were compared with 17 control patients. Mean methemoglobin levels in group B were 1.78 +/- 1.29%, and this differed significantly (P less than 0.05) from both group A mean methemoglobin, 1.13 +/- 0.92%, and controls, 0.99 +/- 0.55%. The proportion of patients with elevated methemoglobin concentration increased from the control to group A to group B. It is concluded that commonly used dosages of nitrates are capable of causing elevations of methemoglobin which are probably not of routine clinical significance. However, these elevations may be of import in certain patient populations such as those with coronary insufficiency or anemia.
journal_name
J Clin Pharmacoljournal_title
Journal of clinical pharmacologyauthors
Arsura E,Lichstein E,Guadagnino V,Nicchi V,Sanders M,Hollander G,Greengart Adoi
10.1002/j.1552-4604.1984.tb01825.xsubject
Has Abstractpub_date
1984-04-01 00:00:00pages
160-4issue
4eissn
0091-2700issn
1552-4604journal_volume
24pub_type
杂志文章abstract::Nicotinic acid is a water-soluble B-complex vitamin that has been shown, in high doses, to lower total plasma cholesterol (C), LDL-C, and VLDL-triglycerides (Tg), while raising HDL-C in patients with type II, III, IV, and V hyperlipoproteinemia. Its exact mechanism of action is not known, but it appears to lower the p...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1002/j.1552-4604.1991.tb03750.x
更新日期:1991-07-01 00:00:00
abstract::Tissue pharmacokinetics and plasma protein binding of colistin have not been described in humans in vivo. Colistin concentrations in plasma, muscle, and subcutis of healthy volunteers were measured by microdialysis after a single dose of 2.5 million IU of colistin methanesulfonate. In vitro microdialysis experiments a...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1002/jcph.419
更新日期:2015-04-01 00:00:00
abstract::This study was conducted to evaluate whether the allometric approach can be used to predict maximum tolerated dose (MTD) in humans from animal data. Twenty-five anticancer drugs were taken from the literature and used in this analysis. The results of the study indicate that MTD can be predicted with reasonable accurac...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1177/00912700122009791
更新日期:2001-01-01 00:00:00
abstract::Response to statin therapy is often unpredictable because of variability in metabolism and transport. In the recently created organic anion transporting-polypeptide 1b2 (Oatp1b2/Slco1b2)-null mice, the investigators found significantly lower liver-to-plasma ratios compared with controls for atorvastatin (16.0 ± 5.1 vs...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1177/0091270011422815
更新日期:2012-11-01 00:00:00
abstract::This analysis was conducted to characterize the pharmacokinetics and pharmacodynamics of pegfilgrastim and to develop a pharmacokinetic-pharmacodynamic model to describe the granulopoietic effects of pegfilgrastim and the homeostatic regulation of pegfilgrastim clearance in healthy subjects. Pegfilgrastim serum concen...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1177/0091270006288731
更新日期:2006-07-01 00:00:00
abstract::Glucagon is a counter-regulatory hormone that is classically used to treat hypoglycemia. However, it can elicit the generation of cAMP within the myocardium to cause positive inotropic and chronotropic effects without the need for beta-1 adrenoceptor stimulation. Glucagon has been used extensively to treat beta-blocke...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:
更新日期:1999-05-01 00:00:00
abstract::Using a sensitive and specific radioimmunoassay the pharmacokinetic disposition of clonidine was determined in hypertensive patients after a single dose and then after 5, 28 and 56 days of chronic dosing with 75 micrograms bd. Following a single dose of clonidine maximal plasma concentrations of 0.34 +/- 0.06 ng/ml we...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1002/j.1552-4604.1989.tb03335.x
更新日期:1989-04-01 00:00:00
abstract::To explore the clinical relevance of inhibition of multidrug resistance transporter 1 and organic anion transporting polypeptide transporter, a drug-drug interaction study was conducted using aliskiren and cyclosporine. This was an open-label, single-sequence, parallel-group, single-dose study in healthy subjects. Sub...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1177/0091270010385934
更新日期:2011-11-01 00:00:00
abstract::Migraine is a common and debilitating disorder of uncertain pathogenesis. Recent research into the pathophysiology of migraine and serotonin receptors has revolutionized the approach to pharmacotherapy. New medications, such as sumatriptan, and new dosage forms of older medications, including dihydroergotamine, NSAIDs...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1002/j.1552-4604.1993.tb03944.x
更新日期:1993-03-01 00:00:00
abstract::More than 30% of patients who undergo surgery will experience postoperative nausea and vomiting (PONV) if no prophylactic treatments are used. Although numerous studies have been performed to investigate the factors related to PONV, the effect of perioperative intravenous oxycodone on the incidence of PONV has not bee...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1002/jcph.1408
更新日期:2019-08-01 00:00:00
abstract::Alkamides are suspected to contribute to the activity of Echinacea preparations. They are mainly derived from undeca- and dodecanoic acid and differ in the degree of unsaturation and the configuration of the double bonds. In total, 6 alkamides have been isolated from the roots of Echinacea angustifolia as major lipoph...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1177/0091270004273493
更新日期:2005-06-01 00:00:00
abstract::Quazepam is a new benzodiazepine that may provide good hypnotic action with negligible effect on motor coordination or respiration. Sleep laboratory studies on human volunteers have shown quazepam 15 mg to be an effective hypnotic dose, with the 30-mg dose being optimal. At these doses, there was no deterioration of m...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1002/j.1552-4604.1987.tb03020.x
更新日期:1987-04-01 00:00:00
abstract::The effects of long-term triple drug therapy on renal function in patients with moderate to severe essential hypertension have not been evaluated systematically. We prospectively studied fifteen male patients with moderate to severe essential hypertension receiving triple drug therapy (metolazone, atenolol or betaxolo...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1002/j.1552-4604.1989.tb03423.x
更新日期:1989-09-01 00:00:00
abstract::The confluence of rapid scientific advancements especially in protein engineering and recombinant technology, unmet medical needs, and commercial incentives have led to the development of the next generation of therapeutic proteins. Bispecific antibody constructs are one of the novel strategies that is being pursued, ...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1002/jcph.445
更新日期:2015-03-01 00:00:00
abstract::The most recent International Conference on Harmonisation E14 Q&A document states that a separate positive control would not be necessary provided sufficiently high exposures are achieved in the early-phase studies. Realistically, a phase 1 study is unlikely to include a pharmacological positive control, and in cases ...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1002/jcph.975
更新日期:2018-01-01 00:00:00
abstract::Heparin-induced thrombocytopenia (HIT) is a high-risk adverse drug reaction because of its associated risk of life- and limb-threatening thrombosis. Rivaroxaban may be considered as an ideal nonheparin anticoagulant alternative for the management of HIT. In this preliminary retrospective study, the efficacy and safety...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1002/jcph.1635
更新日期:2020-10-01 00:00:00
abstract::This study assessed the efficacy and safety of ketoprofen patch compared with placebo in patients who had rheumatoid arthritis and persistent wrist pain. Patients (N = 676)who had achieved systemic disease control with a disease-modifying antirheumatic drug and/or systemic corticosteroid, but still had persistent wris...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1177/0091270009355813
更新日期:2010-10-01 00:00:00
abstract::A randomized, crossover study was conducted in healthy male volunteers to assess the diurnal variation in the steady-state pharmacokinetics of valproate after multiple 250-mg oral and intravenous infusion doses after an intravenous 750-mg loading dose. Multiple blood samples were collected throughout each 168-hour stu...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/j.1552-4604.1994.tb02036.x
更新日期:1994-07-01 00:00:00
abstract::The authors evaluated the effect of high-dose aspirin at a therapeutic dose, using chlorzoxazone as a probe for CYP2E1 enzyme activity. In a randomized, open-label, 2-way crossover study, 10 healthy men were treated 3 times daily for 6 days with 1 g aspirin or placebo. On day 7, 1 dose of 400 mg chlorzoxazone was admi...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1177/0091270005282635
更新日期:2006-01-01 00:00:00
abstract::Pain is considered the most common complaint worldwide for which patients seek treatment. Conventional analgesic agents play an important role in modern pain therapy, but they cause several adverse effects. Therefore, newer and better analgesics continue to be investigated. In this controlled clinical trial, the autho...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1177/0091270004267809
更新日期:2004-11-01 00:00:00
abstract::A novel, nonscrotal, transdermal delivery system for testosterone therapy has been marketed for treatment of hypogonadal men. The usual dose of this system is two 2.5 mg/day systems applied daily. A new system has been developed that administers a dose of 5 mg/day using a single patch rather than two patches. A random...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/j.1552-4604.1998.tb04377.x
更新日期:1998-01-01 00:00:00
abstract::The pharmacokinetics and pharmacodynamics of intravenous famotidine were evaluated in 10 infants ranging from 5 to 19 days of age who had a therapeutic indication for the prophylactic treatment of stress ulceration. After a 0.5-mg/kg infusion of famotidine, timed serum (n = 6), urine (24-hour collection), and repeated...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:
更新日期:1998-12-01 00:00:00
abstract::The population pharmacokinetics of desmopressin in children with nocturnal enuresis and in healthy adults were compared using a 1-compartment model with first-order absorption and first-order elimination. In addition, the model consisted of a number of transit compartments before absorption to describe a lag-time. The...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1177/0091270006291838
更新日期:2006-10-01 00:00:00
abstract::This clinical investigation was designed to characterize the pharmacologic response to theophylline in elderly individuals. Incremental theophylline plasma concentrations (0, 5, 10, 15, and 20 mcg/mL), achieved through dose escalation of intravenous aminophylline, were correlated with pulmonary airway responses in ten...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1002/j.1552-4604.1990.tb03602.x
更新日期:1990-04-01 00:00:00
abstract::A double-blind, placebo-controlled trial was performed to establish the duration of action of antihistamines and their ability to attenuate the adverse affects associated with histamine release. Thirty volunteers were assigned randomly to receive either placebo or a combination of the H1 blocker dimetindene maleate (0...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/j.1552-4604.1997.tb04772.x
更新日期:1997-02-01 00:00:00
abstract::The effect of pomegranate juice (PJ) or grapefruit juice (GFJ) on CYP3A activity was studied in vitro and in healthy human volunteers. In human liver microsomes, the mean 50% inhibitory concentrations (IC(50)) for PJ and GFJ versus CYP3A (triazolam alpha-hydroxylation) were 0.61% and 0.55%, (v/v) respectively, without...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1177/0091270006298359
更新日期:2007-03-01 00:00:00
abstract::ReN1869 (NNC 05-1869) is a novel, selective H1 receptor antagonist that has been developed for analgesic purposes. In a first human dose administration study, the safety and pharmacokinetics of seven single oral doses in the range of 3.5 to 95 mg ReN1869 were studied. The study was a randomized, double-blind, placebo-...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1177/0091270002239708
更新日期:2003-01-01 00:00:00
abstract::This double-blind, parallel-group study was performed at a single site in patients with moderate or severe pain after oral surgery to remove one or more impacted third molars. Patients recorded their pain intensity at baseline and were then assigned to receive a single dose of bromfenac sodium (25 mg or 50 mg), tramad...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/j.1552-4604.1998.tb04453.x
更新日期:1998-05-01 00:00:00
abstract::The relative analgesic potency of oral and intramuscular oxymorphone was evaluated in a double-blind crossover comparison of graded single doses in patients with chronic pain due to cancer. When both duration and intensity of analgesia are considered (total effect), oral oxymorphone was 1/6 as potent as the intramuscu...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1177/009127007701700402
更新日期:1977-04-01 00:00:00
abstract::The medium-term (16 weeks) effects of the combination of captopril and hydrochlorothiazide (HCTZ) on some metabolic indexes, particularly on plasma lipoproteins, were evaluated in 20 mild to moderate hypertensive outpatients. After a 4-week wash-out period, the subjects were given one tablet of a new commercially avai...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1002/j.1552-4604.1990.tb03590.x
更新日期:1990-11-01 00:00:00