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Chaste tree (vitex)

Vitex agnus-castus

Chaste tree (vitex)
Wikimedia Commons · Cillas · Image source · CC BY-SA 4.0

Overview

PMS, cyclical mastalgia, luteal-phase dysfunction (corpus luteum insufficiency), dysmenorrhea, menstrual irregularities, hyperprolactinemia, breast tenderness (per text).

Plant family

Verbenaceae

Parts used

Fruit and seed

Actions

Tonic · Nervine · Emmenagogue · Uterine Stimulant

Affinities

Reproductive · Nervous

Body systems

Reproductive · Nervous

Taste profile

Spicy, pungent, peppery

Tissue states

Traditional use

Historical/ritual and ancient-medicine use described in course text (e.g., Hippocrates/Dioscorides references); also used traditionally as emmenagogue/uterine stimulant (per text).

Current use

PMS, cyclical mastalgia, luteal-phase dysfunction (corpus luteum insufficiency), dysmenorrhea, menstrual irregularities, hyperprolactinemia, breast tenderness (per text).

Preparation

Fluid extract; tincture; oral dosing protocols

Dosage guidance

Fluid extract: 1.2–4.0 mL (0.5–1.6 tsp). Tincture: 40 drops once daily with liquid. Premenstrual dysphoric disorder: 20–40 mg daily (used in studies).

Cautions & contraindications

May be unsafe during pregnancy and while breast-feeding; avoid during pregnancy (uterine stimulant properties). Breast-feeding use is controversial due to prolactin effects; avoid until more is known. Hormone-regulating activity may hypothetically interfere with oral contraceptives and hormone replacement therapy. Avoid with hormone-sensitive conditions (breast/uterine/ovarian cancer, endometriosis, uterine fibroids). Listed as AHPA Class 2b (per text).

Evidence notes

Course text emphasizes dopamine/D2 receptor and prolactin modulation; effects may be dose-dependent and clinically slow (4–12+ weeks).