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Randomised trial, 1992

Does a triphasic birth control pill help premenstrual symptoms?

It reduced breast pain and bloating but did not help mood symptoms. Women also experienced decreased sexual interest as a side effect.

Moderate study design 82 women recruited; 45 completed with confirmed moderate to severe PMS

What they did

Eighty-two women with moderate to severe PMS made daily symptom ratings for at least one cycle, then were randomly assigned to take either a triphasic oral contraceptive or placebo for three months. Forty-five women with confirmed PMS completed the study.

What they found

Breast pain and bloating were significantly reduced with the birth control pill compared to placebo (p less than 0.03). There were no benefits over placebo for mood symptoms. Women taking the pill reported decreased sexual interest.

What it means for you

The birth control pill may help some physical PMS symptoms like breast pain and bloating but not mood symptoms, and comes with the side effect of reduced sexual interest. Many women dropped out, which limits confidence in the findings.

82

women recruited

45

women completed study

23

women dropped out

About the study

Original title
A prospective treatment study of premenstrual symptoms using a triphasic oral contraceptive
Authors
Graham CA, Sherwin BB
Journal
Journal of psychosomatic research
Year
1992
Study design
Randomised trial
What was tested
Triphasic oral contraceptive vs placebo for three months

Topics