Facts & Comparisons > Horny Goat Weed

Horny Goat Weed

Scientific names: Epimedium grandiflorum

Common names: Horny goat weed also is known as Chien-Hsieh, and Yin-Yang-Hua (arrow-leaf barrenwort).

Efficacy-safety rating:

●...Little or no evidence of efficacy.

Safety rating:

●...Little exposure or very minor concerns.

What is Horny Goat Weed?

Horny goat weed is a rhizomatous perennial herb. It is native to Japan, Korea, and parts of China, and grows on hillsides and in cliff crevices and shady areas. The plant has light yellow, violet, red, and white flowers, and oval fruits.

What is Horny Goat Weed used for?

Traditional/Ethnobotanical uses

Epimedium species have been used as tonics in Chinese herbal medicine to enhance sexual performance by increasing testosterone production, sexual energy, and overall well-being. Historically, horny goat weed was said to possess aphrodisiac effects and improve impotence, spermatorrhea, and premature ejaculation. Some manufacturers claim the product has been used as a “natural sexual stimulator” for years in China and Japan. However, clinical trial data are lacking to support these claims. Research reveals no animal or clinical data regarding the use of horny goat weed as an aphrodisiac.

What is the dosage of Horny Goat Weed?

There are no recent clinical studies of horny goat weed to provide a basis for dosage recommendations.

Is Horny Goat Weed safe?

Contraindications

Contraindicated in patients with known hypersensitivity reactions to Epimedium.

Pregnancy/nursing

Documented adverse effects. Avoid use.

Interactions

None well documented.

Side Effects

No data.

Toxicities

Contraindicated in patients with known hypersensitivity reactions to Epimedium. Because of the lack of clinical trial data, use during pregnancy is contraindicated.

References

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