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Systematic review, 2019

Does chasteberry help premenstrual syndrome?

Yes, based on 3 high-quality trials, women taking chasteberry were 2.57 times more likely to experience symptom improvement compared to placebo. However, evidence is limited because only 3 rigorous studies met quality criteria.

Moderate study design 520 women with premenstrual syndrome in 3 high-quality randomized controlled trials

What they did

Meta-analysis of randomized, double-blind, placebo-controlled trials of chasteberry (Vitex agnus-castus) preparations. From 21 trials identified, 3 met high-quality criteria, involving 520 women total.

What they found

Women taking chasteberry were 2.57 times more likely to have remission of PMS symptoms compared to placebo (95% confidence interval 1.52 to 4.35). Only 3 trials met strict quality criteria for proper reporting and herbal product characterization.

What it means for you

Chasteberry appears effective for PMS based on good-quality evidence. However, evidence is limited to only 3 rigorous trials. Most published studies had poor reporting. More trials following strict reporting standards are needed.

520

women in high-quality trials

3

rigorous trials of 21 identified

2.57

times more likely to improve vs placebo

About the study

Original title
Vitex agnus-castus in premenstrual syndrome: A meta-analysis of double-blind randomised controlled trials
Authors
Csupor D, Lantos T, Hegyi P et al.
Journal
Complementary therapies in medicine
Year
2019
Study design
Systematic review
What was tested
Chasteberry (Vitex agnus-castus) extracts Ze 440 and BNO 1095 versus placebo

Topics