Warning over herbal medicine's impact on contraceptive pill

One unintended pregnancy has been linked with the herb used for menstrual problems: TGA

A herbal medicine usually taken by women for menstrual disorders may interact with the contraceptive pill and has been linked with at least one unintended pregnancy, the TGA has warned.

Vitex agnus-castus

In a safety advisory, the regulator says it has received a report of an unintended pregnancy following concurrent use of Vitex agnus castus with norethisterone, a progesterone-only contraceptive pill.

One other similar case has been reported overseas with the herb — also known as Chaste Tree, Chasteberry and Monk’s Pepper — and even