39 Although existing information does not indicate a causal relat

39 Although existing information does not indicate a causal relationship between serotonin and PMS, the data suggest

involvement of the serotonergic system in this disorder. A meta-analysis of randomized controlled trials of SSRIs in treatment of PMS/PMDD concluded that these drugs were an effective first-line therapy, with the overall standard mean difference in favor of SSRIs equivalent to an odds ratio of 6.91.40 Efficacy has been clearly shown for fluoxetine,41-46 sertraline,18,47-50 paroxetine,51 citalopram,52 Inhibitors,research,lifescience,medical venlafaxine,53 and clomipramine.54,55 Open-label studies showed that nefazodone56 and fluvoxamine57 also had response frequencies in PMS treatment similar to those in the placebo-controlled Inhibitors,research,lifescience,medical studies of SSRIs. The only medication with Food and Drug Administration (FDA) approval for treatment of PMDD are fluoxetine and sertraline. In all reports of SSRI and other serotonergic antidepressant treatments for PMS/PMDD, the effective doses have remained at the low end of the dose range. An adequate trial of a serotonergic antidepressant is at least two menstrual cycles with a third cycle if there is partial Inhibitors,research,lifescience,medical response.

If a patient has an insufficient response or continuing side effects with an initial SSRI, another SSRI can be tried.58 Side effects are common with the onset of treatment, but are usually transient and disappear during the first treatment cycle. The most common side effects Inhibitors,research,lifescience,medical include headache, nausea, insomnia, fatigue or lethargy, diarrhea, decreased concentration, and dizziness. Decreased libido is also a common side effect of SSRI treatment, although the few published reports of PMS patients identified a relatively low incidence Inhibitors,research,lifescience,medical of decreased sexual interest or reduced orgasm of 10% to 12%.18,53 In contrast, the frequency of less sexual arousal reported by women in depression studies ranged from

32% (sertraline) to 40% (paroxetine).59 Whether there is a true difference between PMS and major depression patients with respect to this side effect, is not known, but the PMS/PMDD MycoClean Mycoplasma Removal Kit reports clearly are from acute treatment trials, do not represent a systematic assessment of sexual BMS-754807 function, and may not represent, experience with longer maintenance treatment. Luteal phase closing The use of medication only in the symptomatic luteal phase of the menstrual cycle is of particular interest in PMS/PMDD because of the cyclic pattern of the symptoms, which includes a clear symptom-free interval each month, and the rapid response of these patients to SSRIs. A number of preliminary studies examined luteal phase dosing regimens of SSRIs and consistently reported efficacy.

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