Epimedium is also known as Barrenwort, Rowdy Lamb Herb, Bishop’s Hat, Horny Goat Weed, Fairy Wings, or Yin Yang Huo. This plant is characterized by bright red stems with green heart-shaped leaves with slight hairy on the bottom. The meaning of the herb name in Chinese, yin yang huo, stands for "weed for licentious goat." According to a local legend, a goat cattleman discovered the herb epimedium properties by watching his goats; uncontrollable and increased sexual desire after they pastured on the herb. Barrenwort is characterized by strong aphrodisiac characteristics due to the icariin, contained in standardized extracts from 10% to 50% potent. Icariin is believed to act by increasing nitric oxide level, relaxing smooth muscle.
Modern Chinese herbal medicine widely applies epimedium (usually, combined with other herbs) not only to treat male impotence, but also for bronchitis cervical dysplasia, asthma, leukopenia, congestive heart failure, and viral infections as well. The herb increases development of the dopamine providing pleasure feeling and decreases the cortisol production, known as the stress hormone. It is an ivy-like ground bush grown in the higher and drier areas in China and Tibet.
Avoid any overdose and exceeding of more than the prescribed dose. All the same, maximum erectile power is possible if the blood pressure is normal; however, taking a high dose of epimedium may increase the blood pressure and heart rate but does not increase an effect on erection. Epimedium Grandiflorum is not recommended for long-term application.