Traditionally used in Western herbal medicine to relieve symptoms of PMT. Blackmores Vitex Agnus-Castus is a traditionally used in western herbal medicine for the relief of symptoms of premenstrual syndrome such as tension, breast tenderness and fluid retention. Traditionally used in western herbal medicine to assist in regulating the menstrual cycle. Vitex agnus castus is a western herbal medicine, traditionally used to normalize heavy, absent or irregular periods and premenstrual syndrome. Size: 40 Tablets KEY FEATURES Traditionally used in Western Herbal medicine help relieve symptoms of PMT. Traditionally used in Western Herbal medicine helps regulate the menstrual cycle.