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Randomised trial, 1999

Does a low-dose GnRH agonist relieve premenstrual symptoms while keeping regular periods?

Low-dose GnRH agonist significantly relieved irritability and depression, and improved physical symptoms like swelling and headache. However, it stopped ovulation in 56% of women, making it unsuitable for long-term use if you want regular cycles.

Moderate study design 27 women with severe premenstrual syndrome

What they did

Double-blind, placebo-controlled, crossover study. 27 women with severe PMS took either buserelin (a GnRH agonist) intranasally at 100 micrograms once daily for two months, then placebo for two months, or vice versa. Women rated their mood and physical symptoms daily.

What they found

Premenstrual irritability and depression were significantly relieved. Positive mood like friendliness and cheerfulness improved. Swelling and headache improved. Breast tenderness was unaffected. In 56% of patients, the treatment stopped ovulation, particularly in older women.

What it means for you

This medication works for mood and some physical symptoms, but stops ovulation in over half of women, especially older ones. The study was small and doesn't tell us about long-term effects.

27

women with severe PMS

56%

developed anovulation

100 micrograms

daily dose

About the study

Original title
Treatment of premenstrual syndrome with gonadotropin-releasing hormone agonist in a low dose regimen
Authors
Sundström I, Nyberg S, Bixo M et al.
Journal
Acta obstetricia et gynecologica Scandinavica
Year
1999
Study design
Randomised trial
Participants
27
What was tested
Buserelin (GnRH agonist) 100 micrograms intranasally once daily for 2 months
Open access
Yes

Topics