IS LISINOPRIL REALLY MADE FROM SNAKE VENOM?
Nursing Outtakes
Is Lisinopril
Really Made from Snake Venom?
No, not
really. But there is a close connection between snake venom and the development
of ACE (angiotensin-converting enzyme) inhibitors.
In 1968, Royal
College of Surgeons laboratories of Nobel prize winner, John Vane, conducted
studies that showed that peptides from the Brazilian viper’s venom inhibited ACE
activity. Vane then proposed to US pharmaceutical company, ER Squibb and Sons, to
do an ACE inhibitor research program.
From those
humble beginnings, captopril was developed around 1974. It was the first of the
ACE inhibitors, a chemical compound (which did not include snake venom but mimicked
its effects on hypertension). By mid-80s, Merck had developed an ACE inhibitor,
enalapril. From there, we now have a host of antihypertensive medications - adrenergic
blockers (including alpha, beta, alpha-beta and peripherally acting blockers); angiotensin
II receptor blockers (ARBs); calcium channel blockers (including
dihydropyridines and nondihydropyridines); centrally acting alpha-agonists; direct vasodilators; as well
as other ACE inhibitors.
So, what’s
up with the snake venom story still circulating? Seems the public has an unending
fascination with snakes and their venom as medicine. Currently rattlesnake pills
are being marketed as supplements for various conditions. This ‘natural’ approach
comes with its own headaches, salmonella being one of them. To read more about
this, check out this article on Pharmacy Times (no affiliation).
©2022
Guiomar Goransson