HERB PROFILE · EDUCATIONAL REFERENCE

Chaste Tree

Botanical nameVitex agnus-castus

Plant part usedFruit

Important safety information: Avoid pregnancy and breastfeeding unless specifically prescribed. Seek advice with pituitary disease, hormone-sensitive conditions, fertility treatment, dopamine medicines, antipsychotics, hormonal contraception or HRT. New abnormal bleeding or breast changes require assessment.

Herbal actions

Prolactin inhibitor
Dopaminergic agonist
Indirectly progesterogenic
Galactagogue at low doses in historical use

Traditional and practitioner uses

These uses are presented for historical and educational context. They are not treatment claims.

Defined preparations for premenstrual syndrome, including mastalgia and fluid retention
Traditional menstrual-cycle support
Practitioner use in latent hyperprolactinaemia and corpus luteal insufficiency
Not an instant or universal hormone balancer

Main constituents

Essential oil; labdane- and clerodane-type diterpenes including rotundifuran; flavonoids including casticin; iridoid glycosides including aucubin and agnuside

Preparation overview

Tea: Not preferred. Clinical evidence relates to particular extracts used consistently over several cycles.

Liquid extract reference: 1:2 liquid extract: 1–2.5 mL/day (6–18 mL/week)

Preparation strengths are not interchangeable. Open the interactive guide for the complete evidence notes and sources available for this herb.

Herbilous provides educational information only. It does not diagnose, prescribe, or replace professional medical advice. Seek urgent care for severe or worsening symptoms.