title: Continuous or intermittent dosing with sertraline for patients with severe premenstrual syndrome or premenstrual dysphoric disorder.
abstract: OBJECTIVE
  The authors compared the efficacy and acceptability of continuous versus intermittent treatment with a selective serotonin reuptake inhibitor in women with severe premenstrual syndrome and determined the effects of postmenstrual symptom severity and depression history as covariates of the treatment response.
  
  
  METHODS
  Patients who met symptom criteria and reported impaired functioning after three screening cycles were randomly assigned to three cycles of double-blind, placebo-controlled treatment with continuous (full-cycle dosing) or intermittent (luteal-phase dosing) sertraline. The design was stratified for severity of postmenstrual symptoms and history of major depression. Flexible sertraline dose was 50-100 mg/day. Outcome measures were the Daily Symptom Rating Form score and patient global ratings of functioning.
  
  
  RESULTS
  Both sertraline groups improved significantly more than the placebo group as assessed by total premenstrual Daily Symptom Rating Form scores for 3 treatment months. Daily Symptom Rating Form factors that were significantly more improved in the sertraline groups were mood and physical symptoms. Sertraline improvement occurred swiftly in the first month of treatment. Gradual placebo improvement was similar to sertraline in the third month. Subjects with higher postmenstrual symptoms before treatment remained more symptomatic regardless of the dosing regimen. A history of major depression was not associated with treatment response. More sertraline-treated subjects reported improved functioning in the domains of family relationships, social activities, and sexual activity.
  
  
  CONCLUSIONS
  Premenstrual dosing does not differ from continuous dosing with sertraline in premenstrual syndrome treatment. Higher levels of postmenstrual symptoms limit treatment response and are important to define in treatment of premenstrual syndrome.
authors.affiliation: Department of Obstetrics/Gynecology, University of Pennsylvania School of Medicine, Philadelphia 19104-5509, USA. freemane@mail.med.upenn.edu
authors.forename: Ellen W
authors.initials: EW
authors.lastname: Freeman
authors.forename: Karl
authors.initials: K
authors.lastname: Rickels
authors.forename: Steven J
authors.initials: SJ
authors.lastname: Sondheimer
authors.forename: Marcia
authors.initials: M
authors.lastname: Polansky
authors.forename: Sha
authors.initials: S
authors.lastname: Xiao
mesh_terms: D000293:Adolescent; D000328:Adult; D003865:Major Depressive Disorder / Q000175:diagnosis / Q000188:drug therapy / Q000523:psychology; D004311:Double-Blind Method; D004334:Drug Administration Schedule; D005260:Female; D006801:Humans; D008875:Middle Aged; D011293:Premenstrual Syndrome / Q000175:diagnosis / Q000188:drug therapy* / Q000523:psychology*; D017367:Selective Serotonin Reuptake Inhibitors / Q000008:administration & dosage / Q000627:therapeutic use*; D020280:Sertraline / Q000008:administration & dosage / Q000627:therapeutic use*; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires
chemical_list: D017367:Selective Serotonin Reuptake Inhibitors; D020280:Sertraline