Abstract:
:This study was designed to investigate the relationship between subjective and objective effects of a benzodiazepine on the one hand, and the rate of increase of plasma concentration on the other. The pharmacokinetic variables of 10 normal volunteers were calculated following a single intravenous bolus injection of 1 mg of lorazepam, a benzodiazepine devoid of active metabolites. In six of the subjects rates of infusion could be calculated in order to achieve the same plasma concentration after 1 hour and 2 hours. In the main study, lorazepam was infused at two different rates on two separate occasions, with a third placebo infusion occasion. A balanced crossover design was used with single-blind procedures. Plasma concentrations, subjective ratings, quantified EEG recordings, and psychological performance tests were estimated before and at 1, 2, and 3 hours after the start of the infusions. The peak plasma concentrations achieved were the same at the end of the two drug infusions. EEG and some performance tests paralleled the plasma concentrations fairly closely, but subjective effects did not reach their maximum until the 3-hour point and were significantly greater after the 2-hour than after the 1-hour infusion. Drug doses, rate of penetration into the brain, and duration of exposure to the increasing concentrations of lorazepam seem more relevant factors for the time course and the intensity of the various initial effects of the drug than the rate of increase of plasma levels.
journal_name
J Clin Psychopharmacoljournal_title
Journal of clinical psychopharmacologyauthors
Boulenger JP,Smokcum R,Lader Msubject
Has Abstractpub_date
1984-02-01 00:00:00pages
25-31issue
1eissn
0271-0749issn
1533-712Xjournal_volume
4pub_type
临床试验,杂志文章,随机对照试验abstract::Remifentanil is a short-acting, esterase-metabolized opioid analgesic. This study compared the abuse liability of remifentanil with that of fentanyl and placebo in a randomized, double-blind, crossover study. Twelve recreational users of opioids received increasing doses of remifentanil (0.6, 1.2, 1.8, 2.4, and 3.0 mi...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00004714-200012000-00002
更新日期:2000-12-01 00:00:00
abstract::In this study, the authors examined the relationship between steady-state haloperidol blood levels and clinical response in patients with acute psychotic mania. Fifty-four inpatients with acute mania were randomly assigned to receive either haloperidol 25 mg/day or haloperidol 5 mg/day. Each subject also received a co...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00004714-200108000-00013
更新日期:2001-08-01 00:00:00
abstract::The long-term use of the serotonin-releaser and uptake-inhibitor 3,4-methylenedioxymethamphetamine (MDMA, "Ecstasy") has been associated with memory impairments and increased liability to depressive mood and anxiety attacks. It is unclear, however, whether these psychologic deviations are reflected in alterations of t...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/00004714-200102000-00012
更新日期:2001-02-01 00:00:00
abstract::This 12-week, double-blind, multicenter trial evaluated the efficacy of venlafaxine extended release (ER), sertraline, and placebo in adult outpatients (N = 538) with a primary diagnosis of posttraumatic stress disorder (PTSD), as defined in the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, sy...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1097/01.jcp.0000222514.71390.c1
更新日期:2006-06-01 00:00:00
abstract:BACKGROUND:Anxiety symptoms frequently experienced by patients with a major neurocognitive disorder (NCD) are often treated with long-term benzodiazepines despite known adverse effects. Pregabalin has shown efficacy in generalized anxiety disorders but has not been studied in patients with a major NCD. The objective of...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/JCP.0000000000001029
更新日期:2019-05-01 00:00:00
abstract::A multicenter, double-blind, 12-week, placebo-controlled trial of 411 randomized patients, predominantly women diagnosed with posttraumatic stress disorder, failed to show a difference between either dose of fluoxetine treatment and placebo. The mean changes from baseline (SD) measured by the Clinician-Administered PT...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1097/JCP.0b013e31803308ce
更新日期:2007-04-01 00:00:00
abstract::A decrease in heart rate variability (HRV) can indicate increased sympathetic nervous system activity and possibly increased norepinephrine levels. In this randomized, placebo- and escitalopram (ESC)-controlled, subject-blind, 2-period, crossover study, 26 healthy subjects 50 to 65 years old received duloxetine (DLX) ...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1097/JCP.0b013e31828567b6
更新日期:2013-04-01 00:00:00
abstract:PURPOSE/BACKGROUND:For approximately one third of individuals treated for psychosis or schizophrenia, antipsychotic medications will have little or no therapeutic benefit. Clozapine remains the sole medication approved for treatment-resistant schizophrenia, and studies have demonstrated its superior efficacy in reducin...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/JCP.0000000000000734
更新日期:2017-10-01 00:00:00
abstract:BACKGROUND:Late-life depression, often in association with anxiety, affects approximately 15% of individuals older than 65 years. Selective serotonin reuptake inhibitors are the first-line treatment but could be responsible of an early exacerbation of anxiety, possibly reduced by a very gradual titration of drugs. The ...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/JCP.0b013e3182905967
更新日期:2013-08-01 00:00:00
abstract::This investigation aimed to provide evidence on the lack of pharmacokinetic interaction of paroxetine (20 mg/d) and alprazolam (1 mg/d) in combined therapy. In addition, the central effects of both drugs when administered alone and in combination were assessed to rule out any relevant synergistic depressant central ef...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/01.jcp.0000125689.05091.c6
更新日期:2004-06-01 00:00:00
abstract::We compared fasting lipids and other metabolic parameters in 211 normoglycemic patients meeting the DSM-IV diagnosis of schizophrenia or schizoaffective disorder undergoing continuous treatment with olanzapine, risperidone, or typical antipsychotics for at least 1 year. Blood samples were obtained after an 11-hour (+/...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/01.jcp.0000227705.56870.06
更新日期:2006-08-01 00:00:00
abstract::This article reports the effects of imipramine on heart rate and blood pressure in panic disorder patients who participated in an 8-week double-blind dosage response treatment protocol. At the end of a placebo baseline, patients were randomly assigned to placebo or one of three weight-adjusted imipramine dosages: low ...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1994-04-01 00:00:00
abstract::Alprazolam kinetics following a single 1.0-mg oral dose of alprazolam were compared between seven dialysis-dependent patients with chronic renal failure and seven healthy controls matched for age, sex, and weight. There were no significant differences between patients and controls in alprazolam half-life (11.5 vs. 11....
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:
更新日期:1986-10-01 00:00:00
abstract::The therapeutic spectrum of nemonapride, a new substituted benzamide, and its relationship with plasma concentrations of the drug and prolactin were investigated by a fixed-dose study (18 mg/day for 3 weeks) in 31 patients with acutely exacerbated schizophrenia. Of 31 patients, 25 (80.6%) were responders who showed a ...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章
doi:10.1097/00004714-200008000-00003
更新日期:2000-08-01 00:00:00
abstract:OBJECTIVE:Efficacy of atypical antipsychotic in acute schizophrenic episodes is still in debate. This study evaluated treatment practices over 7 years of initial treatment with oral risperidone in acutely exacerbated patients with schizophrenia and in a subgroup of highly agitated, tense, and aggressive patients. Addit...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1097/01.jcp.0000170686.27476.ab
更新日期:2005-08-01 00:00:00
abstract::We aimed to evaluate the practice patterns of US postgraduate year (PGY) levels 3 and 4 psychiatric residents in the treatment of patients with bipolar disorder (BD) types I and II. We also aimed to determine whether confidence in prescribing mood stabilizers is associated with residents' practice patterns. The reside...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/JCP.0b013e31824857ad
更新日期:2012-04-01 00:00:00
abstract::Eight schizophrenic patients received alprazolam in an open-label protocol. A partial reversal of negative symptoms was noted in six of the eight patients. Also, all eight experienced a decrease in anxiety. Alprazolam in doses of 5 to 7 mg/day yielded steady state plasma levels of 6 to 64 ng/ml. As the drug was well t...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:
更新日期:1984-12-01 00:00:00
abstract::Lithium is clinically available for the treatment of mood disorders. However, it has remained unclear how lithium acts on the brain to produce its effects. The aim of this study was to evaluate the effects of chronic lithium on human brain activity using positron emission tomography and clarify the correlation between...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章
doi:10.1097/jcp.0b013e31815a23c2
更新日期:2007-12-01 00:00:00
abstract::Hyperprolactinemia mediated by antagonism of dopaminergic neurotransmission in the pituitary gland is a common adverse effect of antipsychotics. Recent studies have suggested that polymorphisms of dopamine receptors can affect the therapeutic response to antipsychotics. Thus, our aim was to evaluate whether 2 such pol...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/JCP.0b013e31822cfff2
更新日期:2011-10-01 00:00:00
abstract::A case of rhabdomyolysis is described, with onset following three intramuscular injections of loxapine and one injection of benztropine over a 7-hour period. The possible additive effects of intramuscular drug administration and psychotic episode-associated increased muscle membrane permeability are discussed. Because...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:
更新日期:1984-02-01 00:00:00
abstract:INTRODUCTION:Zonisamide is an anticonvulsant medication with GABAergic, glutamatergic, and monoaminergic effects. Zonisamide has also been shown to reduce alcohol intake in rodents and in risky drinkers in the context of a laboratory study. This pilot clinical trial evaluated the safety, tolerability, and efficacy of z...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/JCP.0b013e3181db38bb
更新日期:2010-06-01 00:00:00
abstract::It was predicted that tiaspirone, a novel compound, would benefit schizophrenic patients since in animal experiments it is a potent dopamine blocker. Following a placebo washout period of 1 to 2 weeks, 14 patients were treated for 28 days with the drug in a single-blind, dose ranging trial. GAS, NOSIE, and BPRS scores...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章
doi:
更新日期:1987-04-01 00:00:00
abstract::Phencyclidine (PCP) abuse has diminished since PCP's intrusion into American culture in the late 1970s. One of its legacies is the assumption that it provokes violent behavior in humans with predictable regularity. This assumption is so accepted that ingestion of the drug both accidentally and knowingly prior to commi...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章,评审
doi:
更新日期:1988-12-01 00:00:00
abstract::Two experiments examined the effects of methylphenidate in male and female patients enrolled in an outpatient treatment program for primary cocaine dependence. The first study was a component of a double-blind efficacy trial wherein 57 patients were first tested in a human laboratory for their initial responsiveness t...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00004714-200002000-00011
更新日期:2000-02-01 00:00:00
abstract::Nitrous oxide (laughing gas) has shown early promise as a rapidly acting antidepressant in patients with treatment-resistant major depression and is currently investigated in several clinical trials. Because nitrous oxide is rarely administered outside operating rooms or dental practices, most psychiatrists are not fa...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章,评审
doi:10.1097/JCP.0000000000000837
更新日期:2018-04-01 00:00:00
abstract::Transient amnesias, fugues, twilight states, automatisms, depersonalization, and furors or explosive disorders can occur in association with, or be caused by, various medications or substance-induced organic brain states. Agents capable of precipitating dissociative-like states include alcohol, barbiturates and simila...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章,评审
doi:
更新日期:1989-04-01 00:00:00
abstract::The study describes prescription patterns of psychotropic medications for patients treated for psychosis in psychiatric hospitals of Uganda. A cross-sectional quantitative survey of age, sex, diagnoses, and psychotropic medication of 682 psychiatric inpatients of the 2 national referral hospitals in Uganda was conduct...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/JCP.0000000000000166
更新日期:2014-10-01 00:00:00
abstract::In a double-blind study of 34 randomly assigned depressed inpatients, antidepressant-induced electroencephalogram (EEG) abnormalities were compared in amitriptyline-treated versus bupropion-treated patients. Drug-free baseline EEGs plus one or more repeat EEGs under pharmacokinetic steady state conditions were obtaine...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1984-10-01 00:00:00
abstract::The current study aimed at establishing the prevalence of impulse control disorders (ICDs) in patients with Parkinson disease (PD) and their association with demographic, drug-related, and disease-related characteristics. We performed a single-center cross-sectional study of 805 PD patients. Impulse control disorders ...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/JCP.0b013e3182979830
更新日期:2013-10-01 00:00:00
abstract::Disturbed sleep is common in the elderly and is characterized by disordered sleep architecture with reduced time spent in slow wave sleep (SWS) and in rapid eye movement (REM) sleep. At present, no treatments are available to fully compensate for these disorders. In the elderly, vasopressin content is decreased at var...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00004714-199902000-00007
更新日期:1999-02-01 00:00:00