Tribulus terrestris is a dicotyledonous herbal plant of the Zygophyllaceae family, used to increase serum testosterone levels, which has only been shown in animal studies (40). A prospective, randomized, double blind study of 30 men showed that Tribulus terrestris was not more effective than placebo on improving IIEF scores or serum total testosterone (41). Two accounts of hepato-nephrotoxicity have been reported in young men who ingested high doses of this herbal medication (42,43).
The definition of erectile dysfunction (ED) is the inability to obtain or maintain an erection firm enough for sexual intercourse. Historically, admitting to having ED was considered taboo and downright embarrassing until the advent of sildenafil citrate (Viagra) in 1998. Sildenafil liberated men from the stigma of having ED, and it opened a conversation about a problem that has existed for centuries. Up to 10% of men younger than forty suffer from ED and upwards of 60% by age 69.1
In fact, one common reason many younger men visit their doctor is to get erectile dysfunction medication. Often, men with erectile dysfunction suffer with diabetes or heart disease, or may be sedentary or obese, but they don’t realize the impact of these health conditions on sexual function. Along with erectile dysfunction treatment, the doctor may recommend managing the illness, being more physically active, or losing weight.