Abstract:
:Steady-state bioavailability of a sustained-release quinidine gluconate formulation was compared with that of a sustained-release quinidine sulfate preparation in a crossover study. Sixteen healthy men were given multiple doses (two tablets every 12 hours) of the two drugs in randomized sequence. Blood samples were obtained immediately before administration of the seventh dose (hour 70) and at 1, 2, 3, 4, 5, 6, 8, 10, and 12 hours after administration. Plasma samples were assayed for quinidine content by high-performance liquid chromatography, with the analyst unaware of the identity of the drug in the sample. On a tablet-for-tablet basis, the sustained-release quinidine gluconate tablets achieved significantly higher plasma levels between two and six hours, higher mean area under the curve, and higher mean maximum concentrations than did the sustained-release quinidine sulfate tablets. When the data were adjusted to correct for the 23% higher quinidine content in the quinidine sulfate tablets, plasma levels from the sustained-release quinidine gluconate were significantly higher than those from quinidine sulfate at all sampling points. Moreover, the sustained-release quinidine gluconate provided significantly greater bioavailability as determined by all pharmacokinetic parameters. Steady-state pharmacokinetics of sustained-release quinidine products cannot be predicted from single-dose studies. The present multiple-dose study demonstrated that, under steady-state conditions, sustained-release quinidine gluconate tablets are more available systemically than sustained-release quinidine sulfate tablets.
journal_name
Clin Therjournal_title
Clinical therapeuticsauthors
Taggart WV,Holyoak Wsubject
Has Abstractpub_date
1983-01-01 00:00:00pages
357-64issue
4eissn
0149-2918issn
1879-114Xjournal_volume
5pub_type
临床试验,杂志文章,随机对照试验abstract:PURPOSE:Restless legs syndrome (RLS) is a commonly occurring neurologic disorder that affects up to one third of women during pregnancy. RLS has been associated with increased sympathetic tone in the nonpregnant population. We examined whether a RLS surrogate is associated with a higher prevalence of pregnancy and neon...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2015.11.021
更新日期:2016-02-01 00:00:00
abstract::Long-term safety and efficacy of feprazone (4-prenyl-1,2-diphenyl-3,5-pyrazolidinedione), an antirheumatic drug that is well tolerated in the gastrointestinal tract, were assessed in a noncontrolled multicenter trial. Administered at a daily dosage of 600 mg for a mean duration of 114.1 days, feprazone was well tolera...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:
更新日期:1981-01-01 00:00:00
abstract:OBJECTIVE:The goal of this multicenter, double-blind, randomized, parallel-group study was to compare the effects of losartan potassium (hereafter referred to as losartan), candesartan cilexitil (hereafter referred to as candesartan), and losartan/hydrochlorothiazide (HCTZ) in patients with mild to moderate hypertensio...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/s0149-2918(00)83062-3
更新日期:2000-10-01 00:00:00
abstract::The United States maternal mortality rate has been rising for many years putting the US out of step with peer countries. There are many complex reasons for the rise in maternal deaths and recent data has demonstrated that there is a disproportionate risk for women of color. This article provides an overview of current...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:10.1016/j.clinthera.2020.01.015
更新日期:2020-03-01 00:00:00
abstract:PURPOSE:This study aims to investigate glycosylated hemoglobin (HbA1c), between-laboratory imprecision (%CV), and pass rates from 2012 to 2015 in Nanjing to provide evidence for improving the HbA1c measurement. METHODS:This was a retrospective, descriptive analysis of HbA1c levels obtained from participating hospitals...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2016.11.013
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:Respiratory syncytial virus (RSV) lower respiratory tract infection (LRI) in early life has been associated with sustained airway hyperreactivity during childhood; however, corresponding data in premature infants are sparse. OBJECTIVE:The objective of this study was to determine whether RSV-LRI during early...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2011.01.007
更新日期:2010-12-01 00:00:00
abstract:BACKGROUND:Asthma is a common chronic disorder of childhood, and it is frequently accompanied by dental and other oral abnormalities. As such, oral and dental effects of asthma medications have been investigated in several studies. However, the effect of combination therapy with a long-acting beta(2)-agonist and a cort...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章
doi:10.1016/j.clinthera.2007.10.014
更新日期:2007-10-01 00:00:00
abstract:BACKGROUND:Oxymorphone extended release (ER) is a tablet formulation of the mu-opioid agonist oxymorphone designed to achieve a low peak-to-trough fluctuation in plasma concentrations over a 12-hour dosing period. OBJECTIVE:This study compared the analgesic efficacy, dose response, and tolerability of 3 doses of oxymo...
journal_title:Clinical therapeutics
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.clinthera.2006.03.008
更新日期:2006-03-01 00:00:00
abstract::Calorie/protein malnutrition is a common problem among dialysis patients. A study was designed to determine the value of adding a mixture of amino acids to the diet of 36 patients (mean age, 42 years) who had been receiving triweekly hemodialysis for periods ranging from 1 to 13 years. For 1 month the patients receive...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:
更新日期:1993-07-01 00:00:00
abstract::The effect of leuprorelin acetate depot on the endocrine system and on lipid metabolism was evaluated in a multicentre, noncomparative study. During the first month of treatment, suppression of serum oestradiol levels to below 20 pg/ml was achieved and luteinising hormone and follicle-stimulating hormone levels were r...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,多中心研究
doi:
更新日期:1992-01-01 00:00:00
abstract:BACKGROUND:Previous health economic studies have demonstrated the cost-effectiveness of simvastatin in the treatment of coronary heart disease (CHD) based on clinical results of the Scandinavian Simvastatin Survival Study. A prior analysis evaluated the "cost of getting to goal," but ignored all costs after titration. ...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0149-2918(01)80010-2
更新日期:2001-02-01 00:00:00
abstract::Hypoglycemia in people with insulin-treated type 2 diabetes can be a limiting factor for management and a barrier to optimizing glycemic control. Even mild episodes of hypoglycemia can affect an individual's quality of life, and fear of hypoglycemia can lead to underinsulinization. This article explores the prevalence...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:10.1016/j.clinthera.2016.09.020
更新日期:2017-08-01 00:00:00
abstract:BACKGROUND:Although annual per-person health care costs for patients with end-stage renal disease (ESRD) on in-center hemodialysis greatly exceed those for patients on peritoneal dialysis (PD), which is a home dialysis therapy, current use of PD remains low. In April 2008, the Centers for Medicare & Medicaid Services i...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2009.04.004
更新日期:2009-04-01 00:00:00
abstract::The in vitro activity of Ro 09-1428, a new parenteral cephalosporin, was compared with that of other beta-lactams and aminoglycosides in 1230 clinical isolates from 1028 consecutive patients. Using an agar dilution method, the drugs were tested against 625 isolates of Enterobacteriaceae, 68 Pseudomonas aeruginosa, 36 ...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:
更新日期:1992-07-01 00:00:00
abstract:BACKGROUND:Prostaglandin analogues are effective ocular hypotensive agents and are being used increasingly in the treatment of elevated intraocular pressure (IOP). These agents are typically dosed once daily. OBJECTIVES:A pilot study was conducted to evaluate the duration of travoprost's IOP-lowering efficacy up to 84...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0149-2918(04)90008-2
更新日期:2004-01-01 00:00:00
abstract::This paper presents a state-of-the-art review of oral contraceptives (OCs), termed one of the epochal developments of modern times. OCs have had both direct and indirect influences on moral, social, and cultural values and on the interaction of population resources and the environment. In recent years there has been...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:
更新日期:1985-01-01 00:00:00
abstract::Outcomes research in oncology is a relatively young field, but its potential for expanding our understanding of patients' experiences with cancer gives it increasing relevance to clinical oncology research. We provide a brief overview of the growing prevalence of oncology outcomes research, and we discuss some of the ...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:10.1016/s0149-2918(03)80103-0
更新日期:2003-02-01 00:00:00
abstract:PURPOSE:The purpose of this study was to evaluate the bioavailability of hydroxyprogesterone caproate (HPC) administered as a subcutaneous injection in the back of the upper arm using a prefilled autoinjector syringe with a 27-gauge needle compared with standard intramuscular injection in the gluteus maximus using a 21...
journal_title:Clinical therapeutics
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.clinthera.2017.10.020
更新日期:2017-12-01 00:00:00
abstract:PURPOSE:The Enhancing Quality of Prescribing Practices for Older Veterans Discharged From the Emergency Department (EQUIPPED) program is a quality improvement initiative that combines education, clinical decision support (ie, geriatric pharmacy order sets), and in-person academic detailing coupled with audit and feedba...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2020.02.013
更新日期:2020-04-01 00:00:00
abstract::Exposure of the eye to airborne particles in patients predisposed to allergy often results in the signs and symptoms of allergic conjunctivitis such as red, itchy eyes and ocular discharge. The mediators of these allergic symptoms include histamine, inflammatory substances such as prostaglandins, and other products of...
journal_title:Clinical therapeutics
pub_type: 杂志文章,多中心研究
doi:10.1016/0149-2918(95)80066-2
更新日期:1995-09-01 00:00:00
abstract:BACKGROUND:The worldwide prevalence of asthma is increasing by approximately 50% per decade. Budesonide is one of several inhaled corticosteroids available for the treatment of asthma and has been extensively evaluated in clinical trials. OBJECTIVE:This article reviews the published literature on the efficacy of budes...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:10.1016/s0149-2918(02)80005-4
更新日期:2002-06-01 00:00:00
abstract:BACKGROUND:Sialorrhea, or drooling, is seen in the pediatric population, especially in patients with cerebral palsy and other neurodevelopmental disabilities. If medication use is warranted, anticholinergic agents are the drug of choice; however, adverse effects limit their use. Glycopyrrolate, a synthetic anticholiner...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:10.1016/j.clinthera.2012.02.026
更新日期:2012-04-01 00:00:00
abstract::A recent report of two isolates of Streptococcus bovis resistant to killing by low levels of penicillin G prompted this study of the in vitro susceptibility of 100 clinical isolates of S bovis to six antibiotics. Using a microdilution method, we found the minimum bactericidal concentrations for 99% of the isolates to ...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00
abstract::The effects on corneal tissue of three marketed beta-blocker eye drops, carteolol 1% and 2%, befunolol 0.5% and 1%, and timolol 0.25% and 0.5%, were studied by instilling these drops into the eyes of rabbits twice daily for two consecutive months. The corneal sections were examined under a scanning electron microscope...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:
更新日期:1986-01-01 00:00:00
abstract:BACKGROUND:Cytochrome P450-related drug interactions can lead to adverse effects that may affect health care resource utilization. OBJECTIVE:The purpose of this study was to quantify the impact of drug interactions involving hydroxymethylglutaryl-coenzyme A reductase inhibitors (statins) on health care resource utiliz...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/s0149-2918(02)80102-3
更新日期:2002-12-01 00:00:00
abstract:PURPOSE:Interferon injectables and glatiramer acetate have served as the primary disease-modifying treatments for multiple sclerosis (MS) since their introduction in the 1990s and are first-line treatments for relapsing-remitting forms of MS (RRMS). Many new drug therapies were launched since early 2010, expanding the ...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:10.1016/j.clinthera.2015.03.001
更新日期:2015-04-01 00:00:00
abstract:PURPOSE:Despite the rapid proliferation of hyaluronate (HA) and corticosteroid (CO) injections and clinical guidelines regarding their use in osteoarthritis (OA), information on the characteristics of people receiving these injections is scarce. We describe the use of injections among adults with radiographically confi...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2017.01.006
更新日期:2017-02-01 00:00:00
abstract::A large number of medications and medical devices removed from the market by the US Food and Drug Administration over the past 4 decades specifically posed greater health risks to women. This article reviews the historical background of sex and gender in clinical research policy and describes several approved drugs an...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:10.1016/j.clinthera.2016.12.009
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:In Taiwan, a policy of separation of prescribing and dispensing practices of practitioners at Western medical and dental clinics was implemented on an incremental basis in 1997. The purpose of this policy was to promote pharmacists' autonomy and increase the transparency and safety of prescribing medications...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2006.08.005
更新日期:2006-08-01 00:00:00
abstract:BACKGROUND:Although third mandibular molar extraction is a widely used and validated model of acute pain for evaluating analgesic efficacy, a large proportion of patients experience moderate or severe pain following this procedure and require analgesia. Current treatment options have been associated with safety concern...
journal_title:Clinical therapeutics
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.clinthera.2012.01.004
更新日期:2012-02-01 00:00:00