Papaverine is an opium alkaloid antispasmodic drug, used primarily in the treatment of visceral spasm and vasospasm and occasionally in the treatment of erectile dysfunction. It is used in the treatment of acute mesenteric ischemia.

Rapamycin, also known as sirolimus , is a macrolide compound that is used to coat coronary stents, prevent organ transplant rejection and treat a rare lung disease called lymphangioleiomyomatosis. It has immunosuppressant functions in humans and is especially useful in preventing the rejection of kidney transplants.