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Non-randomised trial, 1985

Does Efamol help severe PMS?

Yes. Efamol reduced PMS symptoms and depression better than placebo. It may work by changing how blood platelets function.

Early or limited evidence 30 women with severe, incapacitating premenstrual syndrome

What they did

30 women with severe PMS took either Efamol or placebo. Researchers measured symptoms and also measured a blood protein called thromboxane B2 in platelets. 25 healthy women were measured for comparison.

What they found

Efamol reduced PMS and depression better than placebo. Women taking Efamol had lower thromboxane B2 levels (141 ng/ml) compared to placebo (186 ng/ml, p<0.01) and healthy controls (176 ng/ml, p<0.05). Hormone levels did not change in either group.

What it means for you

Efamol may help severe PMS by changing how platelets work, not by changing hormones. However, only 30 women were studied without clear randomization, so larger well-designed studies would help confirm whether it really works.

30 women

with severe PMS

141 vs 186 ng/ml

thromboxane B2 (Efamol vs placebo)

25

healthy control subjects

About the study

Original title
Biochemical and clinical effects of treating the premenstrual syndrome with prostaglandin synthesis precursors
Authors
Puolakka J, Mäkäräinen L, Viinikka L et al.
Journal
The Journal of reproductive medicine
Year
1985
Study design
Non-randomised trial
Participants
25
What was tested
Efamol supplement versus placebo

Topics