President Dwight D. Eisenhower announced the Eisenhower Doctrine in January 1957, and Congress approved it in March of the same year.
Tribulus terrestris is an annual plant in the Caltrop Family (Zygophyllaceae) widely distributed around the world, that is adapted to grow in dry climate locations in which few other plants can survive.It is an invasive species in North America.ne study found that administration of Tribulus terrestris extract can produce statistically significant increases in levels of testosterone, dihydrotestosterone and dehydroepiandrosterone, and produces effects suggestive of aphrodisiac activity.
When tribulus terrestris itself is used in rats, it shows dose-dependent protective effects with most potency in the ethanolic extract and when Unex is used (a combination formula of tribulus terrestris and boerhaavia diffusa) in a rat model of ethylene glycol induced kidney stones, 200mg/kg oral ingestion is able to reduce kidney stone formation with a potency comparable to 750mg/kg cystone (400mg/kg Unex appeared to be slightly less potent).