This pro-erectile agent is used as a traditional herbal medicine in Nigeria and other central African countries . It is associated with aphrodisiac properties  and is also linked to supporting healthy erectile functions, suppression of appetite, promoting healthy cholesterol levels within an already healthy range. It has become the focus of much current research due to its testosterone boosting properties.
Unlike most other aphrodisiacs, Fadogia agrestis also has an impact on ejaculatory latency, and thus may help to prolong sexual performance.
The main components of Fadogia are 2,6-dimethyl-2(E),6(Z)-octadiene-1,8-diol, and glycosidic forms of it. It is also rich in alkaloids and saponins, with detectable levels of anthraquinones and flavonoids. The high levels of alkylamide glycosides make this herb one of the most potent natural enhancers of libido.
With regards to testosterone, a study has shown that a Fadogia supplement can increase the hormones levels in a dose-dependent manner, by up to six-fold, after five days .
Fadogia agrestis is thought to naturally act in a similar manner to Human Chorionic Gonadotropin (HCG), which helps to maintain testosterone levels. Studies in rats have demonstrated a significant increase in testicle mass after 30 days of supplementation with Fadogia . Therefore the use of Fadogia agrestis containing supplements may help to overcome the effects of decreased testosterone production resulting from decreased testicle size when levels of estrogen and androgens are elevated such as when partaking in a steroid cycle work.
Supplementation with Fadogia agrestis may increase lipid peroxidation, making it important to take it alongside fat-soluble antioxidants such as β-carotene, retinol, vitamin E, and ubiquinol.
 Aswar et al. Effect of furostanol glycosides from Trigonella foenum-graecum on the reproductive system of male albino rats. Phytother Res. 2010 Oct;24(10):1482-8. doi
 Yakubu et al. Aphrodisiac potentials of the aqueous extract of Fadogia agrestis (Schweinf. Ex Hiern) stem in male albino rats. Asian J Androl. 2005 Dec;7(4):399-404.
 Yakubu et al. Effects of oral administration of aqueous extract of Fadogia agrestis (Schweinf. Ex Hiern) stem on some testicular function indices of male rats. J Ethnopharmacol. 2008 Jan 17;115(2):288-92.