[2] Visnagin naturally occurs in Visnaga daucoides, a species of flowering plant in the carrot family known by many common names, including bisnaga, toothpickweed, and khella.

Construction of the furan moiety was realized by a conventional method through the 7-carboxymethoxy ether giving S-norvisnagin which can be methylated to visnagin.

[5] Visnagin has biological activity in animal models as a vasodilator and reduces blood pressure by inhibiting calcium influx into the cell.

[6] In rats, visnagin prevents the formation of kidney stones by prolonging the induction time of nucleation of crystals.

"[8] In another scientific study, it was reported that visnagin treatment reduced ischemia-reperfusion associated testicular injury in urological interventions.