Health Library

Horny Goat Weed

Supplement Forms/Alternate Names:

  • Epimedium, rowdy lamb herb, barrenwort, yin yang huo

Introduction

Horny goat weed is an herb that grows in China. The leaves have been used to ease fatigue and increase sex drive. It can be taken as a pill, powder, or extract. It can also be made into a tea.

Dosages

There are no advised doses for horny goat weed.

What Research Shows

May Be Effective

Editorial process and description of evidence categories can be found at EBSCO NAT Editorial Process.

Editorial process and description of evidence categories can be found at EBSCO NAT Editorial Process.

Safety Notes

It may be safe for most adults to take horny goat weed for a short time. Not enough studies have been done to say whether it is safe to for take a long period or by women who are pregnant or breastfeeding. B1-B3

Interactions

Talk to your doctor about any supplements or therapy you would like to use. Some can interfere with treatment or make conditions worse.

References

REFA
Erectile Dysfunction

REFA1
Punyawudho B, Puttilerpong C, et al. A randomized, double-blind, placebo-controlled crossover study of Cappra® for the treatment of mild or mild to moderate erectile dysfunction in Thai male. Afr J Tradit Complement Altern Med. 2012 Dec 31;10(2):310-315.

REFB
Safety

REFB1
Partin JF, Pushkin YR. Tachyarrhythmia and hypomania with horny goat weed. Psychosomatics. 2004 Nov-Dec;45(6):536-7.

REFB2
Metz D, Weston P, et al. Case report of vasculitic rash induced by Ginkgo biloba and/or Horny Goat Weed. BMJ Case Rep. 2009;2009. pii: bcr07.2008.0399.

REFB3
Bostock E, Kirkby K, et al. Mania associated with herbal medicines, other than cannabis: a systematic review and quality assessment of case reports. Front Psychiatry. 2018 Jul 6;9:280.

  • EBSCO NAT Review Board Eric Hurwitz, DC
  • 202002
  • 20200527