Valerian, since at least ancient Greek and Roman times, has been used as an herbal medicine. In Swedish medieval weddings, Valerian was sometimes worn by the groom on his gown to prevent the envy of the elves. In China, there have been records of the use of Valerian in the Ming Dynasty. Valerian has been included in the pharmacopoeia of many countries in history as a herbal medicine. Valerian has a very long history of use. The valerian root powder has been taken to treat insomnia, nerve conditions like anxiety and restlessness.