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Tribulus terrestris is a vine-like plant growing in subtropical climates. Bulgarian Tribulus terrestris is the type that is typically used in dietary supplements. Typical uses of Bulgarian Tribulus terrestris are to promote energy, a healthy libido, and increased muscle mass.

One more possible use Bulgarian Tribulus terrestris is in the treatment of erectile dysfunction. Bulgarian Tribulus terrestris has the ability to increase vasodilation, and it also has been shown to increase libido, further adding to the pro-erectile effects of this herb. Studies have shown Bulgarian Tribulus terrestris to have blood pressure lowering effects through relaxation of smooth muscle tissue. Other studies have actually directly shown Bulgarian Tribulus terrestris to be of possible use in treating moderate cases of erectile dysfunction.

So what’s the bottom line? Bulgarian Tribulus terrestris has potential in treating mild to moderate cases of erectile dysfunction. This herb is certainly not a replacement for prescription drugs such as Viagra, and it is not claimed to be as effective. Bulgarian Tribulus terrestris is, however, a good alternative for those looking for a mild over the counter treatment option.

For more information about Bulgarian Tribulus terrestris, click here.


1. Gauthaman K, & Ganesan AP. (2008). The hormonal effects of Tribulus terrestris and its role in the management of male erectile dysfunction–an evaluation using primates, rabbit and rat. Phytomedicine : International Journal of Phytotherapy and Phytopharmacology. 15(1-2), 44-54.

2. Adaikan PG, Gauthaman K, Prasad RN, & Ng SC. (2000). Proerectile pharmacological effects of Tribulus terrestris extract on the rabbit corpus cavernosum. Annals of the Academy of Medicine, Singapore. 29(1), 22-6.

3. Phillips OA, Mathew KT, & Oriowo MA. (2006). Antihypertensive and vasodilator effects of methanolic and aqueous extracts of Tribulus terrestris in rats. Journal of Ethnopharmacology. 104(3), 351-5.

4. Sharifi AM, Darabi R, & Akbarloo N. (2003). Study of antihypertensive mechanism of Tribulus terrestris in 2K1C hypertensive rats: role of tissue ACE activity. Life Sciences. 73(23), 2963-71.

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