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Randomised trial, 1994

Does nefazodone help premenstrual syndrome?

Premenstrual symptoms improved significantly in both groups. Improvement appeared by week 4 at an average dose of 245 mg. However, this was an open-label study without a placebo control, so the true effect is uncertain.

Moderate study design 47 women with PMS, including 23 without depression and 24 with current depression or dysthymia

What they did

47 women with PMS (23 without depression, 24 with depression) received open-label nefazodone starting at 100 mg and titrated up to 600 mg daily in two divided doses for 8 weeks, with optional continuation for up to 1 year.

What they found

Premenstrual symptoms improved significantly in both groups by the end of the first treated cycle (4 weeks). Average dose at improvement was 245 mg (range 100-400 mg). 47 of 54 patients completed 2 months of treatment with mean daily dose of 319 mg. Most common side effects were nausea and headache.

What it means for you

Nefazodone may help PMS and PMS that occurs with depression. Improvement occurred quickly at relatively modest doses. However, this was open-label without a placebo control, so we cannot separate medication effect from expectations and attention. The authors recommend a placebo-controlled study.

47

women who completed 2 months

245 mg

average effective dose

4 weeks

time to symptom improvement

About the study

Original title
Nefazodone in the treatment of premenstrual syndrome: a preliminary study
Authors
Freeman EW, Rickels K, Sondheimer SJ et al.
Journal
Journal of clinical psychopharmacology
Year
1994
Study design
Randomised trial
Participants
24
What was tested
Nefazodone 100-600 mg daily in two divided doses for 8 weeks

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