Vitex (Chasteberry)
Vitex agnus-castus, commonly known as chasteberry, is used to alleviate symptoms of premenstrual syndrome (PMS), regulate menstrual cycles, and manage mild hyperprolactinaemia, primarily in women.
Evidence last reviewed: 20 Apr 2026
- •pregnant or breastfeeding women
- •those with hormone-sensitive conditions
- •individuals taking hormonal medications
Moderate to high-quality evidence supports Vitex's effectiveness for PMS symptom reduction and menstrual cycle regulation. While it has been traditionally used for hyperprolactinaemia, more research is needed to fully establish its efficacy in this area.
PMS symptom reductionWomen with PMS · Meta-analysisHigh
Vitex agnus-castus was found to be effective in reducing PMS symptoms compared to placebo.
Menstrual cycle regulationWomen with menstrual irregularities · Systematic reviewModerate
Vitex agnus-castus is used for regulating menstrual cycles and has been approved by the German Commission E for this purpose.
Hyperprolactinaemia managementWomen with mild hyperprolactinaemia · Systematic reviewModerate
Vitex agnus-castus has been traditionally used to manage mild hyperprolactinaemia.
PMS symptom reductionWomen with PMS · Meta-analysisHigh
Meta-analysis indicates that Vitex agnus-castus is effective in reducing PMS symptoms.
Forms & usage▾
Take 400-800 mg of Vitex extract daily, preferably in the morning.