BACKGROUND Indirect evidence suggests that the antidepressant venlafaxine hydrochloride selectively inhibits serotonin (5-HT) uptake at low doses, whereas at high doses, it inhibits both 5-HT and norepinephrine (NE) uptake. We hypothesized that, in vivo, both high and low doses would inhibit the 5-HT uptake of platelets but that the higher dose would differentially blunt the pressor response to...

BACKGROUND Polymorphisms of serotonin transporter, especially serotonin transporter linked promoter region (5- HTTLPR) and serotonin transporter intron 2 variable number tandem repeat (5-HTTVNTR), have been suggested to be associated with treatment response to selective serotonin reuptake inhibitors. However, there have been only few reports of the association between 5-HTTLPR or 5-HTTVNTR and ...

STUDY OBJECTIVES Determine effects of low-dose estradiol and low-dose venlafaxine on self-reported sleep measures in menopausal women with hot flashes. DESIGN 3-arm double-blind randomized trial. Participants assigned in a 2:2:3 ratio to 17β estradiol 0.5 mg/day (n = 97), venlafaxine XR 75 mg/day (n = 96), or placebo (n = 146) for 8 weeks. SETTING Academic research centers. PARTICIPANTS 3...

BACKGROUND Functional brain imaging studies in major depression have suggested abnormalities of areas, including the frontal cortex, cingulate gyrus, basal ganglia, and temporal cortex. We hypothesized that venlafaxine hydrochloride and interpersonal psychotherapy (IPT) might each alter brain blood flow in some or all of these areas on sequential single photon emission computed tomography (SPEC...

Venlafaxine is an antidepressant and anti-anxiety drug that has been detected in municipal wastewater at low μg/L concentrations. In this study, the nest-defense behavior of adult male fathead minnows (Pimephales promelas) was observed in fish exposed for a full lifecycle to venlafaxine nominal concentrations of 0.88, 8.8, and 88 μg/L (i.e. 1, 9.3, 75 μg/L mean measured concentrations). Nest-de...

BACKGROUND Venlafaxine is an inhibitor of neuronal serotonin and noradrenaline re-uptake and a weak inhibitor of dopamine re-uptake. There was no indication of problems of abuse/dependence during the clinical trials. CASE DESCRIPTION A 53-year-old client with a history of alcohol and amineptine misuse and a long history of recurrent depression, for which he was prescribed venlafaxine tablets....

BACKGROUND In individual studies and limited meta-analyses venlafaxine has been reported to be more effective than comparator antidepressants, particularly selective serotonin reuptake inhibitors (SSRIs). AIMS To perform a systematic review of all such studies. METHOD We conducted a systematic review of double-blind, randomised trials comparing venlafaxine with alternative antidepressants i...

OBJECTIVE Tachyphylaxis often refers to the loss of antidepressant efficacy during long-term treatment. However, it may also refer to the gradual loss of efficacy after repeated antidepressant exposures over time. The aim of this study was to examine the phenomenon of tachyphylaxis in patients with Bipolar II major depression treated with either venlafaxine or lithium. We hypothesized that a gr...

OBJECTIVE To explore adherence/persistence with generic gabapentin/venlafaxine versus brand-name gabapentin/venlafaxine (Neurontin(®)/Vandral(®)) in peripheral neuropathic pain (pNP) or generalized anxiety disorder (GAD), respectively, and whether it is translated into different costs and patient outcomes in routine medical practice. METHODS A retrospective, new-user cohort study was designed...

Data Extraction: The suicide items from the Children’s Depression Rating Scale–Revised and the Hamilton Depression Rating Scale as well as adverse event reports of suicide attempts and suicide during active treatment were analyzed in 9185 patients (fluoxetine: 2635 adults, 960 geriatric patients, 708 youths; venlafaxine: 2421 adults with immediate-release venlafaxine and 2461 adults with extend...