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Randomised trial, 1993

Does alprazolam help premenstrual syndrome symptoms?

No. Alprazolam did not reduce PMS symptoms compared to placebo on most measures, with only a small statistical improvement in depression that was not clinically meaningful.

Moderate study design 22 women with confirmed premenstrual syndrome (20 completed)

What they did

22 women with confirmed PMS participated in a double-blind, placebo-controlled crossover trial lasting 8 menstrual cycles. Treatment began on cycle day 16 with doses escalating: 0.25 mg three times daily initially, 0.50 mg next, then 0.75 mg three times daily for approximately 6 weeks. Two women did not complete the study.

What they found

Alprazolam and placebo showed no significant differences in symptom ratings on most measures. Only the Beck Depression Inventory showed a statistically significant but not clinically meaningful improvement with alprazolam compared to placebo.

What it means for you

This medication did not effectively treat PMS in this group. Only 20 women completed the study, which is a small sample and limits confidence in the results.

22

women with confirmed PMS

8

menstrual cycles

0.75 mg

maximum dose (3x daily)

About the study

Original title
Alprazolam in the treatment of premenstrual syndrome. A double-blind, placebo-controlled trial
Authors
Schmidt PJ, Grover GN, Rubinow DR
Journal
Archives of general psychiatry
Year
1993
Study design
Randomised trial
What was tested
Alprazolam (0.25-0.75 mg three times daily from day 16 of cycle) vs placebo over 8 cycles

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