Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0027497 (nausea)
 23,468 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Eleven healthy male subjects of normal body weight received either 60 mg of the 5-HT re-uptake inhibitor fluoxetine (FXT) or matching placebo daily for two weeks, with a minimum one month wash-out period between treatments. Subjects attended on days 1, 8 and 15 from 08.50 h to 15.15 h in each treatment period when food and fluid intake, body weight, pulse and blood pressure, pupil diameter and plasma levels of FXT and NorFXT were measured and visual analogue scales (VAS) for subjective ratings of hunger, satiety, thirst, mood, arousal, nausea and gastric discomfort were completed. The trial was of a double-blind randomised crossover design, each subject acting as his own control. FXT reduced food intake by 15.7 per cent on day 1; by 12.6 per cent on day 8 but not on day 15. Hunger ratings were lowered by FXT on days 8 and 15 but not on day 1. Subjects were less thirsty when taking FXT but there was no concomitant reduction in fluid intake. FXT produced some mydriasis and slowed heart rate. In two weeks treatment with FXT there was a statistically significant weight loss of 1.07 kg compared to a mean weight gain of 0.15 kg on placebo. The incidence of reported side effects was low, drowsiness and stomach discomfort were reported by some subjects on days 8 and 15.
 ...
PMID:The effect of the 5-HT re-uptake inhibitor fluoxetine on food intake and body weight in healthy male subjects. 236 13

Fluoxetine, a selective inhibitor of 5-HT uptake, was compared to dothiepin in a double-blind study of 6 weeks duration in 100 depressed patients (male and female) drawn from 8 general practices. Only those who scored at least 17 on the first 17 questions of the Hamilton Psychiatric Rating Scale for Depression (HAM-D) were selected. Both groups improved throughout the trial, though the dothiepin treated patients tended to improve quicker. However, by the end of the trial there was no statistically significant difference between the 2 groups. Subset analyses of HAM-D scores associated with anxiety and sleep revealed no statistically significant differences between the 2 treatments though improvement in anxiety scores was marginally greater for those receiving fluoxetine by the end of the trial. Other global assessments by patients and doctors confirmed the changes in HAM-D scores. Statistically significant weight changes occurred between visits 1 and 5. Whereas fluoxetine-treated patients lost weight (p less than 0.05), dothiepin-treated patients gained weight (p = 0.05) over this period. Adverse effects were reported in 27 patients given fluoxetine and 20 dothiepin. Of these, 14 fluoxetine and 7 dothiepin-treated patients withdrew before the end of the trial. The most common adverse effects were nausea, vomiting and diarrhoea in the fluoxetine group and tiredness, drowsiness and diarrhoea in the dothiepin group. There were no haematological or clinical chemistry changes.
 ...
PMID:A double-blind comparative study of fluoxetine and dothiepin in the treatment of depression in general practice. 267 26

The functional roles of monaminergic transmitters in depression have been widely studied during the past decade. Data from that research suggest that lower levels of the 5-HT metabolite, 5-HIAA, in the cerebrospinal fluid; 5-HT uptake in human platelets; and platelets [3H]-imipramine binding sites occur in depressed patients. In recent years several potent and selective 5-HT uptake inhibitors have become available for clinical studies. The first shown to have antidepressant effects, zimelidine, was followed by similar compounds such as femoxetine, fluvoxamine, citalopram, indalpine, fluoxetine, paroxetine, and sertraline. The effectiveness of serotonin inhibitors in treating other disorders, such as obsessive-compulsive disorder, anxiety, and panic disorder, has also been demonstrated. This review reports the data from clinical studies with these agents. The 5-HT uptake inhibitors are devoid of anticholinergic properties and have not produced weight gain or sedative side-effects, but may have another profile of side-effects. Headache, nausea, and vomiting have been reported, however.
 ...
PMID:The antidepressant effects of 5-HT uptake inhibitors. 269 38

Identification of 5-HT receptor subtypes--5-HT1A, 5-HT1B, 5-HT1C, 5-HT1D, 5-HT2 (possibly A and B), 5-HT3 subtypes, and possibly 5-HT4--has encouraged the manufacture of 5-HT receptor inhibitors with greater subtype specificity. However, it appears that the receptors interact, and drugs initially thought to be specific may have multiple actions. For some conditions such as anxiety/depression, almost all receptors are implicated. Clinical studies provide clear evidence that manipulation of the 5-HT system has a role in treating depression, anxiety, obsessional illness, migraine, and eating disorders. Interactions between the various receptor subtypes make it difficult to identify specific clinical functions. The 5-HT1A receptors may be involved in aggression, anorexia, and hypotension. The 5-HT1B receptors may be involved in aggression, while the 5-HT1C receptors may play a role in central aversion systems and anxiety/depression. The role of the 5-HT1D receptors remains speculative; 5-HT2 receptors appear to be involved in depression, anxiety, appetite, sleep, vasoconstriction, and hypertension. Many drugs that are effective in treating migraine are potent 5-HT2 antagonists. 5-HT3 antagonists at high doses are effective in treating nausea and at low doses in treating anxiety. Treatment of aggression, suicidal behaviour, addiction behaviour, memory impairment, dementia, and schizophrenia with 5-HT inhibitors requires further testing.
 ...
PMID:Is there a relationship between serotonin receptor subtypes and selectivity of response in specific psychiatric illnesses? 269 41

Paroxetine is a new antidepressant drug. It is a potent and selective 5-HT re-uptake inhibitor with only weak anticholinergic properties and less effect on the cardiovascular system than the classical tricyclics. In this double-blind multicenter study the antidepressant effect of paroxetine was compared with mianserin in 70 patients with unipolar or bipolar depression. Each drug was administered for 6 weeks after a 1 week run-in period at a daily dosage of 30 mg for paroxetine or 60 mg for mianserin. The 21-item Hamilton Depression Rating Scale (HAM-D) and the physician's global assessment were used to assess efficacy. Both treatment groups showed statistically significant improvement of the HAM-D at Weeks 1 (base-line values: paroxetine mean 28.5; mianserin mean 30.8) through to Week 6 (paroxetine mean 11.5; mianserin mean 17.8) (P less than 0.06). The endpoint differences between treatments however were not statistically different (P = 0.11). The Cleary and Guy factor analysis showed a significant difference (P less than 0.03) at Weeks 2 and 4 for cognitive disturbance and at Weeks 4 and 6 for retardation in favour of paroxetine compared with mianserin. Both drugs were well tolerated with nausea and headache in four patients and somnolence in six patients being reported as the most common side-effect for paroxetine and mianserin respectively.
 ...
PMID:Paroxetine in the treatment of depression. A double-blind multicenter study versus mianserin. 297 Feb 3

In an open, clinical trial comprising a total of 49 depressed in-patients, a new selective 5-HT uptake inhibitor citalopram was administered by intravenous infusion in doses of 20-60 mg once daily for per 3 weeks. The therapeutic effect was assessed globally and by means of the CPRS subscale for depression (MADRS). About 40 per cent of the patients showed a complete response whereas about 25 per cent showed a partial response. Side effects which were rated globally and recorded according to a check-list were generally mild and infrequent. The side-effects most frequently observed were tremor, drowsiness, and dizziness which occurred in about 15 per cent of the patients.' Three patients were withdrawn prematurely because of nausea and one because of a skin rash. Cardiovascular recordings were normal except for one patient, who developed a hypertension which may have been related to the test drug. No pathological laboratory values were detected during the trial period. The authors conclude that intravenously administered citalopram is well suited for the treatment of depressed patients.
 ...
PMID:[Citalopram. An open study of a highly selective serotonin-uptake inhibitor administered by infusion to depressive patients]. 331 9

The effects of MK-212 [6-chloro-2-(1-piperazinyl)-pyrazine] (10, 20, and 40 mg, orally), a centrally acting serotonin (5-HT) receptor agonist and placebo, on serum cortisol, prolactin, and growth hormone levels were studied in eight healthy men over 3-hr. MK-212 produced a dose-related increase in serum cortisol levels, with the 20- and 40-mg doses producing significant elevations. Serum prolactin levels were significantly elevated only by the 40-mg dose. Serum GH levels were not significantly modified by any dose of MK-212. The cortisol and prolactin responses to the 40-mg dose of MK-212 were positively correlated (rho = + 0.85, p less than 0.02). MK-212 was generally well tolerated by the subjects. Headache and nausea were observed at the higher doses, but did not appear to be related to the increase in serum cortisol and prolactin levels. MK-212 may stimulate the secretion of cortisol and prolactin in humans via a serotonin (5-HT2) receptor mechanism and may be a valuable tool with which to study 5-HT receptor sensitivity in humans.
 ...
PMID:Stimulation of serum cortisol and prolactin secretion in humans by MK-212, a centrally active serotonin agonist. 336 58

Citalopram, a selective 5-HT uptake inhibitor with antidepressant properties, was assessed in three studies in 12 healthy subjects using a battery of EEG, psychological, subjective and symptomatic measures. Study A involved the administration of citalopram, 20 mg and 40 mg, amitriptyline 50 mg and placebo in single dose using a balanced cross-over design. The test battery was applied before, and 1 and 3 h after each drug. Citalopram decreased slow-wave EEG activity whereas amitriptyline increased power in most EEG wavebands. Citalopram increased tapping rate and symbol copying whereas amitriptyline impaired these and other psychomotor tasks. Subjectively, amitriptyline was much more sedative than citalopram and produced more complaints of dry mouth. Study B comprised the administration of citalopram in the usual clinical dose of 40 mg, amitriptyline in the low clinical dose of 75 mg and placebo, each given for 9 nights using a balanced cross-over design. The test battery was applied on the first morning (pre-drug) and on the morning after the last nightly dose. None of the physiological tests showed any drug effects. Subjectively, citalopram was associated with feelings of shaking, nausea, loss of appetite and physical tiredness; amitriptyline produced feelings of shaking, nausea, loss of appetite, dryness of mouth, irritability, dizziness and indigestion; in general, amitriptyline effects were more marked than those of citalopram. Plasma samples were taken on the last day and plasma concentrations of both drugs and their metabolites were found to be in the expected range for the regimens used.(ABSTRACT TRUNCATED AT 250 WORDS)
 ...
PMID:The effects of citalopram in single and repeated doses and with alcohol on physiological and psychological measures in healthy subjects. 346 75

The aim of this study was to evaluate the safety of zimeldine, a 5-HT reuptake inhibitor, in the long-term treatment of depressive disorders. The study was an open label, multicentre investigation involving 147 patients who were suffering from depressive illness and who needed long-term anti-depressant treatment. Sixty-five patients completed the intended treatment period of 1 year, 75 terminated prematurely, and 7 are still in the programme. The reasons for termination were mainly ineffectiveness of the drug and adverse reactions. During the long-term treatment the most common emergent symptoms were, in order of decreasing frequency, dizziness, dry mouth, sleep disorders, sweating, tremor, nausea and headache. The side-effects were, however, mild and they generally decreased during the treatment period. No new adverse symptoms were reported. In the long-term treatment group, body weight showed a slight mean decrease. Clinical chemistry and cardiovascular investigations were judged to show no changes of clinical importance. It is concluded that zimeldine was shown to be a safe drug in this 1-year treatment programme of depression.
 ...
PMID:The safety of zimeldine in long-term use in depressive illness. 623 Aug 89

Fluvoxamine facilitates serotoninergic neurotransmission via potent and selective inhibition of serotonin (5-hydroxytryptamine; 5-HT) reuptake into presynaptic neurones. The overall antidepressant efficacy of fluvoxamine 100 to 300 mg/day for 4 to 6 weeks in once daily or divided dosage regimens appears to be at least comparable to that of imipramine and similar to that of clomipramine, dothiepin, desipramine, amitriptyline, lofepramine, maprotiline, mianserin and moclobemide. The efficacy of fluvoxamine has been maintained for up to 1 year, but long term data are limited, and there are no comparative studies of fluvoxamine with other selective serotonin reuptake inhibitors. In some studies, fluvoxamine appeared to have an earlier beneficial effect on suicidal ideation and/or anxiety or somatic complaints compared with imipramine, dothiepin and maprotiline. Gastrointestinal adverse effects, especially nausea, are commonly reported with fluvoxamine but are generally mild to moderate in severity. The tolerability profile of fluvoxamine appears to be more favourable than that of tricyclic antidepressants in terms of cardiotoxic and anticholinergic adverse effects, sedation, weight gain and death from overdosage. Thus, fluvoxamine is an effective and well tolerated antidepressant agent that is becoming established as an alternative to older agents in patients with mild, moderate or severe depression. Fluvoxamine may be particularly beneficial in potentially suicidal patients with severe depression, in those with an underlying compulsive personality or cardiovascular disorder, in patients with coexistent anxiety or agitation, and in the elderly.
 ...
PMID:Fluvoxamine. An updated review of its pharmacology, and therapeutic use in depressive illness. 750 38


<< Previous 1 2 3 4 5 6 7 8 9 10 Next >>